Author Archives: Mr Cylinder

Northcote Hot Water Upgrade

In the beautiful Northcote enjoying the sunshine while installing a gas continuous hot water unit.  This Northcote client called us requesting urgent help after discovering they had no hot water. We replaced their old hot water cylinder with a new continuous flow unit. This energy efficient water heater produces an endless stream of hot water, unlike regular electric hot water cylinders.

The install was quick and easy, and in the end left the client satisfied. We always love jobs bringing hot water to the Northcote. If you need a new Hot water unit, call us at 0800 429 546 or contact us on our website.

How Do Instant Water Heaters Work?

It’s quite interesting how many options NZ homeowners have when it comes tot heating water. There are different types you can choose from. One of which, namely, the tankless or instant water heater is among the most popular types because they tend to be more energy-efficient than the heated water storage option. Are you considering switching to this option? If yes, knowing how the system works can help you understand why you should choose it as your new source of heated water. Check out our discussion below and learn more about how a tankless or instant water heating system work.

 

What is a Tankless Water Heating System?

Instant water heaters are not a novel option in many countries, especially in Japan and Europe. It has gained quite a lot of traction in recent years because it’s relatively more sustainable to operate than the heated water tank option. As the name suggests, this system doesn’t need to draw water inside a water tank. Instead, it instantaneously heats water as it passes through the heating chamber inside the appliance.

On average, your instant water heater can generate up to 5 gallons of heated water per minute, which is more than enough for bathing, washing dishes, and doing the laundry for a small household. 

 

How a Tankless Water Heater Works

Essentially, an instant water heating system comprises of a few parts, including the heat exchanger, safety elements, water valves, temperature sensors, combustion elements, combustion chamber, control panel, and vent. Some, especially those powered by natural gas, include additional features like a gas valve and a burner.

The heating process is quite straightforward. Once you turn the faucet, the water starts getting drawn into the pipes. Then, the system’s water flow sensor activates, triggering the heating element to switch on. This process allows the flowing water to reach your preferred temperature. Once the flow sensor stops sensing water flow, it shuts off, effectively disabling the heating element.

Most models also come with a thermistor. Essentially, this component ensures that the temperature of the water flowing out of the taps does not exceed normal or safe levels. This prevents accidents and other untoward incidents while you use heated water.   

 

Top Reasons Why You Should Consider Instant Water Heaters

With the many options available, you might still have a few reservations about installing a water heater. To help you understand why it’s a worthy option, here are the key benefits of using a tankless water heating system:

  • No need to wait long before hot water is ready for use – Within a few seconds after switching on the tap or showerhead, the heated water will start flowing.
  • Save energy used to heat the water inside the storage tank – Imagine how much this would help you reduce your household’s carbon footprint.
  • More savings on your power bills – Consequently, you no longer have to spend as much money on your monthly electric bill because you don’t have to use up more energy to heat water.
  • More durable make and design –  Compared to other water heating options, tankless systems tend to last longer. If well maintained, your chosen instant heater can last for up to 10 years – a worth-it investment, especially for a small household.
  •  A smaller space requirement – This is quite a considerable advantage, especially if you don’t have enough space to spare for your water heating equipment.

There are, of course, some slight disadvantages that you need to know about before shopping for a tankless heater. For starters, the upfront costs may be expensive. Your average spending on the system would all depend on the model you choose and the average water consumption of your household.

Also, you will need to have a professional installer on board, especially if you’re using a high-powered heater or a model that utilizes natural gas. Such models usually need specialized vents and other additional requirements. If you don’t mind dealing with these disadvantages, then you might indeed find the instantaneous water heater a good fit for your home. 

 

I’m Ready to Make the Switch, Now What?

There are definitely a lot of reasons why it makes more sense for some households to use a tankless system. If you’re among these folks, check out the list of things you’ll need to consider when choosing what type of tankless water system you should use:

  • The water flow rate or the average amount of water you will need to heat for each use. Especially Auckland Hot Water Cylinders
  • The temperature difference between the groundwater and your preferred setting
  • The type of faucets you have in your kitchen and bath
  • The showerhead flow rate which you can calculate on your own or check with the manufacturer

Feel free to consult with our team if you have a hard time figuring out what you need for your home. Also, you can contact us any time you need help in installing a water heater. Contact us today at HWC NZ for your water heating needs in New Zealand.

How Does a Pressure Reducing Valve Work?

It’s quite rare for people to worry about high water pressure. However, when it does happen, it could cause a lot of problems. If you fail to address the issue or protect your system using the right piece of equipment, you could end up spending thousands of dollars on repairs or replacement. It could also result in damaged appliances such as laundry machine and dishwashers. 

Several things can cause high water pressure. For example, supplying companies have to ensure that all of their customers get enough water supply. Hence, they sometimes have to use high pressure to pump the water, especially in areas dotted with high-rise buildings. Another factor that could cause your problem is thermal expansion, a common issue triggered by water heater use. 

It’s not possible for the supplying company to reduce the water pressure, so your only option is to have it adjusted using a pressure reducing valve. 

What is a pressure reducing valve?

Essentially, a plumber installs a water pressure reducing valve near your water meter to control the hydraulic pressure coming from the main line. It’s crucial to double check the type of pressure reducing valve you will install to ensure that they work well with your system.Here are the main three types you can find in the market: 

  • Direct-acting – It’s the simplest and most economical type which works well with both convoluted bellows and a flat diaphragm. This type of PRV works best for low to moderate water flow. 
  • Externally piloted – This type of PRV comes with double diaphragms, which allows for higher capacity and increased sensitivity to water flow and pressure changes. It also offers you the flexibility to make use of different pilot valve types such as soleniod, air-loaded, pressure, temperature or combinations. 
  • Internally piloted – It incorporates a main and pilot valve and uses inlet pressure to open the valves. Compared to the direct-acting type, it has a higher capacity and accuracy. It also senses pressure internally, so you don’t need to add an externally installed sensing line. 

To know which among the three would best fit your system, you should consult with a professional plumber. They can provide you with the necessary details to help you decide.

How does a PRV work?

Now that you’re acquainted with what a pressure reducing valve is plus its three main types, let’s take a closer look at how it works. 

A typical PRV is designed to work even in the harshest environment. Regardless of pressure or upstream flow fluctuations, a PRV ensures a steady downstream pressure. It does this with the help of its major components such as the valve body, pilot regulator, and control filter. Here’s how each part works: 

  • Valve body – It stabilises the returning water flow while regulating the pressure.
  • Pilot regulator – Think of it as the “brain” of the valve body. Basically, it determines the water flow coming in and out of the chamber.
  • Control filter – Located inside the valve system, this filter helps you minimise damage because of accumulated debris coming in from the main line.

The system works by opening or closing the valves depending on the available upstream flow. So, for example, if the pressure in the upstream line is high, the pilot regulator drops the plunger, triggering the valve to gradually open. Consequently, if the upstream flow is low, the pilot slightly lifts the plunger, causing the valve to slightly close.

This all happens continuously, even if you don’t use water. It’s a straightforward process that happens quite fast. With the right pressure reducing valve in place, you can ensure that your household or commercial space gets enough water and protect your system from all kinds of pressure-induced mishaps. 

Shop for a Pressure Reducing Valve Today!

You’d be surprised by the usefulness of a tiny piece of item like a pressure reducing valve. With it in place, you can avoid nightmarish situations such as burst pipes, damaged water consumer lines and defective appliances. The best part is that they don’t cost a lot of money.     

If you live in an area here in New Zealand where the water pressure is too high such as Christchurch, you will definitely need a PRV installed. If you’re not certain about the water pressure of the supply line, you may find it useful to check it yourself using a water pressure gauge. You can also stay on the look out for common signs of high water pressure such as:

  • Banging noise in the pipes
  • Low water supply in your hot water cylinder
  • Unreasonably high water bill
  • Unexplained noise coming from your dishwashers or washing machine

Looking for a water pressure reducing valve for your plumbing system? Find the perfect one here at Hotwater Cylinders. You can choose from more than hundreds of items in our product catalogue. If you need more information about a product, don’t hesitate to get in touch with us.

Checking Water Quality – Its Role in Hot Water Cylinder Maintenance

Hot water cylinders are widely used in the country, especially in residential areas. The system is usually comprised of water pipes connected to a broiler. Heated water travels out from the tank to the kitchen tap, bathroom shower, or any other parts of the house that require water use. Then, as the hot water exits, the tank draws in cold water and heats it again. The cycle repeats every time you use up water. According to Smarter Homes, with proper cylinder maintenance, you will never run out of hot water in your household for about 20 to 40 years. 

Unfortunately, hot water cylinder maintenance is most likely the last thing you think of when you list your usual home maintenance tasks. If you want to ensure your cylinder’s optimum condition, be sure to schedule regular check-ups and maintenance. You can start your routine by testing the water quality. 

You can use chlorine and hard water testing kits to check your home’s water quality. Alternatively, you can call in a plumbing company to have the water checked, and the cylinder inspected for possible damage.

Why Checking the Water Quality Matters

Not too long ago, Stuff published a report on Michael Neilson, a homeowner in Christchurch, who complained about his hot water cylinder failing after adding chlorine to the water. Neilson holds the Christchurch council accountable and demanded them to shoulder the $2167 bill. He is the second person to challenge the board in the last few years after the chlorination of the city’s water supply. Both the plumber and insurer confirmed his claim explaining that the damage indeed resulted from too much chlorine. 

The council has confirmed in earlier reports that the chlorine content of Christchurch’s water is indeed high. And yet, they still haven’t paid for the bill of Mr. Neilson. 

It is an upsetting situation, but it’s also the perfect example to emphasize the importance of checking water quality. If chlorine or other chemicals in the water exceed normal levels, it could result in a disaster similar to Neilson’s water heater problem.

How to Test Water Quality and What to Do When the Quality is Poor

If your water contains excessive amounts of chlorine, it could corrode the cylinder. In a typical setting, stainless steel doesn’t rust. But, if it’s exposed to chemicals such as chlorine, the passive layer of the metal slowly breaks down. The best way to get around the issue is to use chlorine treatment and filters. Also, if you move to an area with high water’s chlorine level, it may be worth it to invest in a copper cylinder.

On one hand, if the problem is caused by high levels of minerals like magnesium and calcium, your cylinder may suffer from pitting corrosion. The excess calcium or magnesium binds to free-floating chlorine. The process produces calcium chloride or magnesium chloride, which can attack both stainless steel and copper cylinders’ molecules. If you detect high levels of such minerals, you can use a water softener or schedule regular cylinder flushing.   

With regular maintenance checks, it would be easier for you to spot potential problems. This way, you get to use basic solutions and prevent damages to your hot water cylinder. If you suspect damage on your cylinder due to high chlorine, calcium, or magnesium, it’s highly recommended to have it checked right away. 

Call for Help When Needed

Oftentimes, it’s intimidating to do maintenance checks for usual home equipment like hot water cylinders. It can be challenging for some to spot the first signs of problems. Fortunately, there are a lot of professionals who can help you with plumbing works and water heater-related concerns. All you need is to call their attention and book an appointment. If you have problems with your heater, don’t hesitate to call for help.

Rinnai Infinity A Series PCB Board Installation

The video will show the step by step procedure of installing the Rinnai Infinity A Series PCB Board. Please be guided accordingly

  • Keeping the packaging up to the side make sure you keep the manual so you can give it to the client later on and place the unit on flat surface where you can work comfortably.
  • Use a Philips screw driver and remove 4 screws holding the front panel on. There is one on each corner.
  • Unpack the PCB board, be careful with it because it’s electronic, you’ll see that there are 5 ports that we will be connecting. They are all in a different shape.
  • Find 5 different wires on the unit that you will be connecting and notice that there is a pin at the bottom of the board that locks the PCB into the unit itself.
  • Find the correct set of wire and plug them into the corresponding ports on the control board. You can’t really get this wrong because they will only fit one way as they are all different shapes. If they don’t fit, DON’T force them and try another.
  • Now carefully drop the PCB into place and push the pin into the unit itself. You’ll see that it will lock it by going through the galvanized steel at the bottom of the device.
  • There is one more screw that you need to put on to keep the board secure inside the unit. You can ee that here. Use an appropriate tool so as to avoid hitting any cables or scratch the PCB.
  • Put the front board back on and put all 4 screws back in place with your driver. Be careful don’t over tighten Once you completed these, you’re pretty much good install the unit. Job complete.

Please make sure that once you have installed the unit you strictly follow the manufacturer’s commissioning instructions. Only attempt this PCB installation if you are qualified and competent to do so. Hot Water Cylinders NZ do not take any responsibility for following instructions within this video.

How to Buy Hot Water Cylinders Online

Online shopping is now a huge part of the new norm. More and more customers prefer to shop online because of convenience plus the larger selection of items they can choose from.  However, there are still some folks who have a hard time figuring out if online shopping works for them. This is especially true for those who need to purchase home equipment such as hot water cylinders.

In most cases, buyers looking for hot water cylinders prefer to head over to their favourite shops to check their options. But, in truth, it’s very much possible to shop for such items online. And it’s quite simple to do so. Check out the short online shopping guide for hot water cylinders. 

Buying trusted brands

The first thing you need to do when shopping online for specialised items such as heat pumps and hot water cylinders is to look for trusted brands.

Look for water heating equipment brands that are tried and tested by customers, that way you get the best value for your money. A good way to assess a brand’s credibility is doing a quick research online. Find out what customers say about them. Are they getting legitimate positive reviews? Do people say negative comments about the quality of their products.  

Check their web presence too. The majority of established companies that offer hot water cylinders and other water pump equipment have a strong online presence both in their website and social media. They also provide detailed descriptions of their product features and even troubleshooting guides.

Some of the best water heating system brands in the market include:

  • Greenglo
  • Dux
  • Rinnai
  • Rheem
  • Paloma
  • Chromagen

Long standing reputation

Besides checking the brand of the product, you should also look at the credibility and reliability of the shop. Find out how fast can they deliver the product? Do they provide an installation service? How about their orders and returns policy? Have you heard of customers complaining about a product they received?

It’s also crucial to read a shop’s shipping policy. Find out how long it takes for the shop to deliver an item. Which couriers do they use? Do they have their own courier? Do they offer international shipping? Is it possible to track your order?

Make sure to check everything about the shop before you complete a transaction. This way, you can set your expectations and find a seller that can meet your demands.

What to look for when buying hot water cylinders online

Water cylinders and heating systems are considered as highly critical appliances used in homes. Choosing the right one can mean a lot for you and everyone else living in your house. So, here’s a quick breakdown of everything you need to consider when shopping for a hot water cylinder online:

  • The cylinder’s water holding capacity – Typically, water heating cylinders can hold around 45 to 500 liters. There are also modern models that have a higher water holding capacity. When considering the water holding capacity of cylinder, you need to have a rough estimate of the peak water usage of your household.
  • The energy source of the heater – Water heaters can either powered by electricity, solar power or gas. It can be expensive to switch from one power source to another, so you need to figure out which option works best for you before you shop.
  • Drain valves – Check the product description to see whether the heating cylinder comes with brass or plastic drain valve. As much as possible, you should stay away plastic valves because they tend to wear out faster.
  • Product warranty – Like in buying any product, you need to check the warranty period. In most cases, water heating cylinders come with product warranties lasting anywhere between 3 to 12 years.
  • Main pressure vs Low pressure – Unvented or main pressure systems deliver hot or cold water to the outlets at a consistent pressure. Low pressure systems on one hand can come in two types. The first one makes use of pressure-reducing water valves to minimise the pressure coming from the main water source. The other one makes use gravity to feed water from the header tank to the storage water tank.

Top 5 Hot Water Cylinders in NZ

Rheem 160L Stellar Main Pressure Gas Hot Water Cylinder

If you are looking for a gas-powered water heating unit, the Rheem 160L Stellar is a good option. It can support peak water usage for around 3 to 6 people. It comes with 10-year product warranty plus 5-year labour warranty. The product is among the most efficient hot water cylinder in New Zealand as it comes with high flow rate. It works perfectly for one-bathroom homes with high to moderate water consumption.

Rinnai 180L Duplex Hot Water Cylinder

The Rinnai 180L 2KW duplex hot water cylinder is an electric-powered equipment. It’s also heat pump ready and made from premium quality stainless steel. It measures 550 mm x 1295 mm and can hold up to 180 litres. Additionally, it comes with a 2KW heating element.

Rheem 27 Continuous Flow Gas Heater

Need an economical gas heater? The Rheem 27 Continuous Flow Gas Heater is one of the finest options in the market. It is equipped with a digital display and an overheat protection system. You can either use LPG or natural gas to power the heating element of the equipment.

Green Glo Solar Ready Water Heating Cylinder

If you prefer using a solar-ready water heater cylinder, you can check out the Green Glo 180S. It has an enameled steel case and has a maximum heat exchange temperature of 95 degrees Celsius. The cylinder has a 520 mm diameter and 1660 mm height.

Dux Proflo 315L 3.6 KW Water Heating Cylinder

The Dux Proflo 315L cylinder is a versatile heating equipment that can be used in an outdoor or indoor setup. It comes with a 7-year product warranty plus 1-year labour warranty. It features a full flow water pressure system plus an enameled steel casing to ensure its durability.    

Need to buy a water heating cylinder today? Get in touch with our team or check out our product catalogue for hot water cylinders in New Zealand. We offer an extensive selection of products that would fit your needs, plus we can also install the equipment upon your request.

The Importance of Pressure Reducing Valves

Hot water cylinders are utilised in many New Zealand homes. A series of pipes are responsible for the transport of water to your property’s plumbing.  Whether you rely on public water supply or use pumps, water travelling to your property should be regulated to protect your existing fixtures and hot water system. This includes the regulation of water pressure and quality.  

The video above shows just how bad a leak can be when things go wrong. This is an old pressure reducing valve on a low-pressure hot water cylinder that could no longer cope with the incoming pressure. 

Why Are Pressure Reducing Valves So Important ?

In the city, most homes are supplied with a public water main feed. This feed is not pressure regulated, nor is it guaranteed to supply debris free water. This ultimately means that you need to take measures to protect your fixtures and hot water system from the incoming quality and pressure of your public water supply. 

How Does a Pressure Limiting (Reducing) Valve Work?

This Diagram of an Ajax type pressure reducing valve nicely explains what happens to incoming pressure. 

Hot Water Systems

If you have low pressure you will most likely know that there is potential for more pressure. Knowing this, it becomes pretty obvious that there is a device which limits the incoming pressure. This device is a pressure reducing valve and is rated in meters. A common rating is 7.5 meters which in other words means that the pressure is regulated to 7.5 meters of atmospheric pressure. 

 

Those of us that enjoy mains pressure are less concerned about regulating pressure, we may believe that the more pressure the better or that it does not need to be regulated, but is that entirely true?   

Appliance and Fixture Ratings

Your hot water system, your appliances, your taps and even your toilets are all pressure rated and should be regulated. This means that they will only cope with a certain amount of pressure before there is potential for failure. This may include a scenario such as in the above video where there is a high risk for flooding when failure happens. 

Please ask Hot Water Cylinders NZ if you are unsure about how to rate any of your plumbing related fixtures and hot water system. 

Where Do I Install the Pressure Reducing Valve?

Pressure reducing or limiting valves will protect your home and everything connected to your plumbing within. So it makes sense to install this valve as upstream as possible within the plumbing system. Typically this would be directly after the water meter on your public supply. 

Often, with low pressure systems this is not desirable at all because one may still want to enjoy “mains pressure” on the cold but continue to accommodate the low pressure hot water cylinder on the hot side in which case the low pressure reducing valve will only be installed on the cold water inlet of the hot water cylinder. These systems are well known as “unbalanced hot water systems”. Another issue with low pressure valves is that they are large and “bulky” making it difficult to install within a meter box where they are prone to damage and sensitive to pressure fluctuation. 

Every home should be protected from the effects of incoming pressure which can majorly increase without notice. 

If you need advice or are unsure about which valve suits your circumstances best, give us a ring and we can help. Hot Water Cylinders NZ also offer valve replacement and repairs. 

Here a list of valves which we may recommend.

RMC Products

RMC has a variety of pressure reducing valves that cater to your needs. Not only do they have pressure-relieving valves, but they also have a variety of products that go with, or have more features that will make it multifunctional.

Here are some of RMC’s pressure reducing valves:

RMC 4 in 1 Hot Inlet Control Valve c/w Adj Limiting 20mm CV75

 Manufacturer: RMC

 Product Specs:

 The Filling-Group type 2128 is designed to automatically fill and refill central heating installations. The Filling-Group is permanently connected to the heating installation. The connection to the potable water system is made with a hose. When the supply pressure falls below the pressure of the heating installation during the filling operation, the water goes into the potable water system. 

 

RMC Cold Water Expansion Valve 700kpa CE75H-700-KPA

Manufacturer: RMC

This product comes in 2 variations, the RMC Cold Water Expansion Valve 700kpa CE75H- 700-KPA and the RMC Cold Water Expansion Valve 800kpa CE75H- 800-KPA.

RMC Hot Water Cylinder Valve Package

 Manufacturer: RMC

 This pack includes 4 in 1 Control Valve, Pressure Limiting Valve, Tempering Valve, Cold Water Expansion Valve, and Male/Female Ball Valve.

RMC HT575 Pressure & Temp Relief Valve 20mm 850kpa HT705

 Manufacturer: RMC

RMC’s Pressure and Temperature Relief (P & T Relief) Valves are safety controls that ensure that the temperature of the water in a pressurized unvented water heater cannot exceed 99° C in the event that the normal thermostatic controls fail.

These valves may be used to guard against over temperature and over-pressure hazards wherever water is stored in unvented containers. This is a requirement of Australian Standard AS 3500-4. RMC P & T Relief Valves are available in 15 mm and 20 mm configurations.

RMC Low Pressure Reducing Feed Valve 7.6m 76kpa D505NZ

 Manufacturer: RMC

This comes in two variations, RMC Low Pressure Reducing Feed Valve 7.6m 76kpa D505NZ and the RMC Low Pressure Reducing Feed Valve 3.7m 37kpa D503NZ.

RMC Pressure Limiting Valve Adj 15mm 155-550kpa 80deg PRV015

 Manufacturer: RMC

The RMC Pressure Reducing Valve is used in water systems to limit the downstream pressure to the pre-set maximum. It compensates for fluctuating upstream pressure to maintain constant maximum outlet pressure.

This is suitable for demanding commercial and industrial applications and multi-unit dwellings and can be used to reduce pressure upstream of commercial and industrial devices such as dosing apparatuses, high-pressure cleaners, and laboratory equipment.

The RMC Pressure Reducing Valve can deliver high flow rates with minimal head loss. This is available in 15 mm, 20 mm, 25 mm, 32 mm, 40 mm, and 50 mm configurations with female BSP thread connections.

RMC Pressure Limiting Valve Adj 20mm 155-550kpa SYR-310620

 Manufacturer: RMC

A range of economy domestic/light commercial quality pressure reducing valves, suitable for various applications at temperatures up to 40°C (60°C for 1 hour max.) The valves are designed for a low-pressure drop, so minimizing noise levels.

The pressure-balanced diaphragm construction and drop-tight design also ensure constant outlet pressure is maintained across all flow rates and no-flow conditions.

All models feature cartridge construction, fully serviceable strainer and female BSP connections for ease of installation and maintenance and are suitable for use with warm water, fuel oil, compressed air, neutral gases and neutral non-sticking liquids.

Why Choose Hot Water Cylinders NZ?

Here at Hot Water Cylinders NZ, we give you the best quality service and the assurance of world-class products and customer service. We not only provide pressure controllers, but also main pressure cylinders, low-pressure cylinders, gas water heating, and many more. We aim to serve you because you are our priority. That is the type of service you can get with New Zealand’s #1 hot water heating and plumbing specialist.

Introducing Bosch Electronic Highflow Continuous Flow Hot Water Heater

Bosch is undoubtedly one of the leading brands of water heaters in the market today and boasts excellent energy efficiency ratings. This enables Bosch water heaters to provide significant savings on running costs daily and preserves the environment too.

In the past, most New Zealand homes have chosen storage tanks as their hot water system. Today, Bosch is changing the way households use hot water – offering the widest range of continuous flow hot water systems.

Why Choose Bosch?

The recent influx of continuous flow hot water systems provides an efficient and cost-effective alternative to traditional gas and electric storage units. If you’re building a new home, renovating, or merely replacing your existing hot water system, Bosch is the right brand for the job. When it comes to hot water systems, Bosch offers a gas continuous flow water heater to suit your every need.

Bosch continuous flow systems only heat enough water for your every need, so you’ll never run out of hot water. Your entire household can shower at the same time and enjoy hot water instead of enduring a cold shower!

Continuous flow hot water systems occupy less space as compared with traditional storage hot water units. They can easily be mounted outside or, if you want, you can conveniently install internal systems in a cupboard (flueing required).

Electronic continuous flow systems can also provide you with a precise temperature adjustment feature using a temperature controller.

Here are the advantages you will enjoy when you choose to install a Bosch continuous flow hot water system:

  • Heat water only as required
  • Never run out of hot water
  • Save money on energy costs
  • Space-saving, compact design
  • Precise temperature control* giving parents added peace of mind for their children’s safety
  • Extensive range of accessories to add to the appearance of your home

Here are the disadvantages of installing a Bosch continuous flow hot water system:

  • There is some delay before the water is sufficiently heated to the right temperature
  • More water is wasted
  • It is not suitable for households with high hot water needs

Here are a few things to consider when choosing the right hot water system for your home:

How many bathrooms does your home have?

Bosch continuous flow gas hot water systems provide hot water at the turn of a tap. However, we recognise that there are times where heavy usage occurs. For example, in busy morning times, there may be more than one shower operating at the same time. It is important to select a hot water unit with a capacity to suit your household’s needs.

A two- or three-bathroom home will require a larger system, such as a Bosch 26e.

What type of Bosch Hot Water unit is right for you?

If your home has one bathroom, a Bosch 17e or 21e may be suitable. For 2-3-bathroom homes in colder climates, Bosch recommend a larger hot water system, such as a 26e.

Is there a spa bath* or large bath installed in the home?

Bosch recommends the 26e or 32 litre unit be installed in homes with a spa bath* or large bath in order to manage the larger volume of hot water required to fill the baths.

What is the distance to the bathroom and other hot water outlets in the home?

It is most efficient to have the hot water system installed in a location closer to the outlets used most frequently such as the shower or kitchen. This helps to reduce the time it takes for the hot water to reach the outlets.

Other Accessories

When installing an Electronic Highflow system in your new home, accessories to consider include a fully enclosed recess box or a pipe cover.

Bosch Electronic Highflow 26e

The Bosch Electronic Highflow 26e unit is compact, space-saving and easy to install. It delivers 26 L/min at a 25°C rise, has a 5.53 energy efficiency rating, is suitable for 2-3-bathroom homes and is available in Natural or LP Gas.

Here are the unit’s features:

  • 53-star energy efficiency
  • Continuous flow technology
  • Delivers 26 L/min at a 25°C temperature rise
  • Compact design
  • Install up to 4 optional temperature controllers
  • Suitable for 2-3-bathroom homes
  • 55°C model standard
  • Anti-frost included on all models
  • External installation only
  • Solar compatible without the need for a solar transfer valve
  • Available in Natural or LP Gas
  • Comprehensive warranties

The unit comes with a Domestic Warranty with 3 Years of Parts and Labour and 10 Years of Heat Exchanger (part only).

Bosch Electronic Highflow 21e

The Bosch Electronic Highflow 21e Continuous Flow Hot Water Heater is compact, space-saving and easy to install. It delivers 21 L/min at a 25°C rise, has a 5.56 energy efficiency rating, is suitable for 1-2-bathroom homes and is available in Natural or LP Gas.

Here are the unit’s features:

  • 56-star energy efficiency
  • Continuous flow technology
  • Delivers 21 L/min at a 25°C temperature rise
  • Compact design
  • Install up to 4 optional temperature controllers
  • Suitable for 1-2-bathroom homes
  • 55°C model standard
  • Antifrost included with all models
  • External installation only
  • Solar compatible without the need for a solar transfer valve
  • Available in Natural or LP Gas
  • Comprehensive warranties

The unit comes with a Domestic Warranty with 3 Years of Parts and Labour and 10 Years of Heat Exchanger (part only).

Bosch Electronic Highflow Features

Bosch Electronic Highflow units are compact, space-saving and easy to install. This range is specifically designed for maximum energy efficiency and environmental protection, providing a minimum of 5.5+ star performance rating.

With a Bosch Highflow you are assured continuous hot water, while saving money and caring for the environment. Highflow systems are available in 17, 21 and 26 litre per minute flow rates and are available in Natural or LP gas.

Other Bosch Electronic Highflow Features and Benefits:

  • No need to mix hot and cold water. Simply select the temperature you desire and turn on the hot water tap.
  • Main controller can be set to the maximum temperature of the unit.
  • Bathroom controller and Sub controller have a maximum temperature of 50°C for safety.
  • Volume setting – user can specify the output of water in litres.
  • Assistance Call button allows the user to signal other household members via an audible alarm.
  • Water Saver / Bath Fill function – an audible alarm will sound, and water flow will stop when the predefined volume is reached.
  • Bosch controllers come with a comprehensive 3 years parts and labour warranty.

For generations, Bosch has been dedicated to providing quality products that protect the environment and conserve resources. We’ve got your every need in our minds as we design our products. We only want the best for you, our customers, so you can rest easy in the assurance that we deliver the best quality products to cater to your needs.

 

5 Successful Northshore (Rodney) Hot Water Cylinder Installations

If you live on the North Shore, contact us today for the best available deals North of Auckland.

Unbeatable prices and service! We will beat any quote you have.

Hot Water Cylinders NZ have completed over 50 hot water installations North of Auckland in the last 3 months.

Here our top 5 favourite picks:

#1 Gas hot water installation in Sunnynook:

Here a classic gas hot water installation in Sunnynook North Shore.

System Spec:

  • Remove old low pressure hot water cylinder and replace with Gas.
  • Rheem 27 LPG
  • Test pressure and commission. 

#2 Gas hot water installation in Takapuna:

Replace Vulcan Freeloader with Rheem Stellar

Takapuna North Shore area.

System Spec:

  • Remove old leaking Vulcan Freeloader and replace with new Rheem Stellar.
  • Maintain existing gas connections.
  • Rearrange plumbing to suit
  • Rheem 27 LPG
  • Test pressure and commission.

#3 Gas Rinnai Infinity installation in Birkdale:

Replace Vulcan Freeloader with Rinnai Infinity

Birkdale North Shore area.

System Spec:

  • Remove old leaking Vulcan Freelaoder and replace with new Rinnai Infinity.
  • Maintain existing gas connections.
  • Rearrange plumbing to suit
  • Rinnai Infinity 27 Natural Gas
  • Test pressure and commission.

#4 Low Pressure Upgrade in Glenfield:

Replace Low Pressure with Rheem Main Pressure Stainless Steel

Glenfield North Shore area.

System Spec:

  • Remove old leaking low pressure hot water cylinder and replace with new mains pressure.
  • Maintain existing plumbing connections.
  • Rearrange plumbing to suit.
  • Rheem mains pressure 180L 3KW electric
  • Test pressure and commission.

#5 Mains pressure gas continuous flow Bosch unit in Albany:

Replace old burst Rheem hot water cylinder with new continuous flow unit.

Albany North Shore area.

System Spec:

  • Remove old burst low pressure hot water cylinder and replace with new mains instant hot water flow unit.
  • Relocate existing plumbing connections to exterior.
  • Rearrange plumbing to suit.
  • Bosch Hydroflow 16L/min
  • Test pressure and commission.

Hot Water Cylinders NZ are the originals and specialists in hot water. Contact us today for your unbeatable quote.

 

Flexible Sacrificial Anodes: The Future of Water Heating Technology

Would you spend 449 including GST to increase your hot water cylinders lifespan by 10 years?

Of course! 

Imagine living in a place filled with a light cool breeze during the day, and freezing temperatures during the night. Turning on the faucets and having warm or hot water for baths, showers, washing, and whatnots is a complete comfort – the epitome and pinnacle of rest and relaxation.

In New Zealand, this isn’t an uncommon occurrence. For a country far from the sun’s rays on the equator New Zealand is definitely a cool place, abundant of rainfall and glaciers. Temperatures in New Zealand go from 10 degrees centigrade down south, and 16 degrees centigrade up north. Throughout the year, temperatures change ever so slightly!

A specific type of tank-type water heater is the Hot Water Cylinder, that uses supply water pressure and delivers hot water to showers and taps. As this type of system does not use a cold-water storage tank, it is designed for small spaces and sometimes limited access. Hot Water Cylinders are enclosed with safety mechanisms that include relief valves, thermostats, and somtimes expansion vessels.

Why You Need A Sacrificial Anode

The problem with this type of heating system is that it does not last very long at the constant pressure and heat changes it faces. That is where a sacrificial anode comes to place. This replaceable component helps maintain and control the rate of corrosion there is in the tank and is present in every water heating system. Sacrificial anodes are often made out of magnesium and attracts all corrosive elements to prevent metal breakdown.

In the span of 10 years, these anodes become very corrosive and will degrade, contributing to the damage of the heating system itself. What many people don’t know is that this anode can easily be replaced, expanding its life to over 20 years, and getting the bang out of your buck.

It should be noted that only steel hot water storage needs a sacrificial anode. It becomes a secondary type of protection to the steel in any hot water tank. Because anode rods are created using less sturdy metals than steel, the node fends off attack from minerals and other materials in your water. This is why anodes are called sacrificial.

Another thing that many people don’t know is that sacrificial anodes must be replaced every 5 years to get over 20 years of use from the hot water cylinder! The real problem now is replacing the anode in a really small, tight, and cramped place such as the hot water cupboard. Replacing this over 1 meter long component needs wide space and it should not be removed or disconnected in the cylinder, which is terribly a huge cost.

Why Use the Flexible Sacrificial Anode?

This is where the Flexible Sacrificial Anode comes into light! This type of sacrificial anode eliminates several other challenges when it comes to replacing the anode. There will no longer be a need to drain and remove the cylinders, and you will no longer have to put a hole above your ceiling for access!

This anode needs less than 250 millimeters of clearance and is very time efficient as it can be installed in an hour. Upgrading your sacrificial anode to a flexible sacrificial anode is the best choice to make, because expanding the life span if your hot water cylinder outweighs the costs of buying a new one every few years.

Where to Buy Flexible Sacrificial Anodes

Buying flexible hot water cylinder sacrificial anodes are no longer a hassle in the country. Companies like Rheem, a New Zealand staple since 1958, sell products that are at the leading edge of hot water heating technology that benefits not only residential areas, but also the commercialized areas of the country.

Hot Water Cylinders NZ invests in innovation and technology to improve your experience with hot water systems here in New Zealand. Our latest innovation allows you to replace your existing Anode without having to dismantle your whole water cylinder installation. Becuase conventional Rods are very long it is almost impossible to replace without disconnecting the entire cylinder and its pipework enabling this physically.  A flexible anode makes this possible and avoids these costs. Without much hassle our technicians will remove the degraded Rod and easily replace is with a flexible model keeping the hot water cylinder in its place which provides the same protection at a much lower installation cost.

Learn more about how to upgrade your sacrificial anode when replacing a hot water cylinder here.