Has the time come for you to upgrade or replace your hot water cylinder or water heater in your Hamilton home? We have just the deals for you!
Our recent BULK buy of Rheem units in Hamilton allows us to drop our pants! Being able to secure a special deal, we are able to pass on these savings to our customers and offer this deal today.
We will undercut any quote you have on the same units for anyone else.
Our Hamilton specials include:
- External mains pressure units
- Instant gas units
- Upgrades to mains pressure
- Low pressure replacements
Why is it best to choose a hot water cylinder specialist? Read our guide here on why you should always use a hot water cylinder specialist to install your water heating system.
Another thing to keep in mind also is whether your quote is apples for apples. Many companies offer deals with a very slight variation, which can often include a necessary item that ads a big cost on top of the special price. When comparing deals, make sure they include the same items.
Check out our website now to see all the deals we have on at the moment and save on your new water heating system in Hamilton today! Contact our office in Hamilton on our Hamilton hot water cylinder page or simply call the following number 0800 429 546.
The Vulcan Freeloader is a very common cylinder found around New Zealand for gas water heating. Available in Natural Gas and LPG, they were a popular choice in the 80s and 90s. However, these heaters are known to fail and have been the subject of many replacement jobs we have done.
These cylinders were originally made in Australia by the company Vulcan. In 2002 , Rheem aquired the Vulcan Company, and the Freeloader was no longer produced.
99% of these Vulcan Freeloader water heaters fail because of the thermocouple, which causes the pilot light to go out, meaning no hot water. Every one of these cylinders we have replaced had this issue. And the problem is that the parts are no longer manufactured, which makes repairing them impossible.
Here is a very old Vulcan Freeloader that we had to deal with recently. It failed on the customer and we tried to repair it, but were not able to due to lack of parts. So the customer was advised that they would need to replace the Vulcan with a new water heating system. As you can see in the pictures, this Vulcan was so old that the green color on the casing has actually faded to brown. Even we rarely see them in this state!
Is your Vulcan Freeloader dead? Check out our Vulcan Freeloader replacement deal here.
Is your hot water cylinder leaking? There are few home maintenance issues that can make your heart sink and your wallet run and hide than finding out your hot water cylinder is leaking, or worse yet, has completely corroded and the leak has been undetected for a while.
The most common faults with hot water cylinders can be put down to loose connections, faults with the element washers, faults with the valve, excessive pressure or due to time, heat or pressure – having a cracked tank.
But whether you need just a repair made or you want to replace your hot water cylinder – hotwatercylinders.co.nz are the company for you. Instead of simply replacing your hot water cylinder – why not talk to us about upgrading while you’re at it?
Hotwatercylinder.co.nz are stockists of Mains Pressure, Low Pressure, Gas Water Heating, Solar Cylinders, Wetback Cylinders, Boilers and Heat Pump Water Heaters.
The traditional water heater has been stuck in a cupboard taking up precious space in many homes in New Zealand. The latest in cylinders can now be installed both inside or outside the home with the latter providing you with more usable inside space.
If you are looking to repair, replace or upgrade then hotwatercylinders.co.nz will take the guess work away for you. You won’t be mucked about – what you see is what you will get – and best of all you will always get our best price upfront.
If you are unsure of what type to choose or what your upgrade options are then we are happy to give you free quotes so you can compare your options and make the best decision.
Hotwatercylinders.co.nz can provide hot water heating options from Southland to Northland and everywhere in between. Our technicians are experienced and know what will work best in your area.
So if you are wanting to repair, replace or upgrade your hot water cylinder – call us today on 0800 4 CYLINDERS.
Will your new hot water cylinder fit in the same space as your old one?
Which hot water cylinder will fit? Find hot water cylinders by size.
Hot Water Cylinders LTD makes it possible!
Our new hot water cylinder finder is a search engine that will find any cylinder available in New Zealand that will fit within your given parameters. Enter the available space you have in terms of height and width (diameter), then submit.
The result will deliver which cylinder will either exactly fit or is just over your given parameters.
For your convenience you can also filter by brand, pressure type and price. We are confident that this tool will help you find the right product quickly. Enjoy!
Once you have found your product, why not get an installation price? Free and best price quotes are available around the clock. Call us on 0800 429 546 for more information or use our hot water cylinder price calculator.
“IMPORTANT NOTICE: Safe trays are now compulsory with all new internal hot water cylinder installations, as per G12/AS1 clause 5.2.3 of the New Zealand building code.”
The above notice is what you will find on most newly sold (Image of a Rheem) hot water cylinders. Last year one of our blog posts discussed whether or not you need a cylinder tray. At the time the blog discussed a faulty product which resulted in flooding and insurance claim. In that particular instance the damage was minimal and covered by the manufacturer. Can you imagine the yearly claims when thousands of hot water cylinders are installed without hot water cylinder trays?
You can take a big guess on who would have lobbied the idea and pressed to get this incorporated into recent New Zealand building code G12 amendments. This standard sets a legal guideline on how a hot water cylinder may and may not be installed.
Looking across the ditch, our Australian friends have had this requirement (regulation) as part of their compliance documents (e.g standard AS/NZS 3500) since 1996 but for some reason it never made it into the New Zealand building code, until now.
AS/NZS 3500 is also an acceptable standard in NZ which begs the question, why bother with two sets of standards in the first place?
Previously, accidental discharge control was optional unless a potential risk of water damage to another property existed, which in most cases only really applied to multi-story situations. Although control was considered “good practice” the homeowner could “opt out” to achieve savings on the installation. Or the plumber would keep it on the quite “to be competitive” and win a job against more expensive quotes that included the installation of a hot water cylinder tray.
Before the change, manufacturers such as Rheem have stated in installation instructions that a safe tray must be fitted, meaning plumbers should have already been recommending, quoting and installing hot water cylinder trays.
Now that this law has come into effect, ignorance is no longer bliss and benefits are relative to:
> The manufacturer knowing that installers can made responsible for water damage if the standard is not followed.
> The homeowner, knowing that any potential leaks are controlled while they are sleeping.
> The insurance, knowing they can legally peruse compensation on behalf of the homeowner.
Additional benefits also include:
- Level playing field when plumbers are pricing jobs.
- Prevention being the best protection.
NOTE: Plumbers and homeowners should ensure the installation complies with the updated standard to avoid any costs associated with non-compliance or resultant damage from water discharging from a hot water cylinder.
Progress is always accompanied with challenges and challenges are accompanied with questions.
Some legalities are still undefined and It is not clear on whether a cylinder try must be installed on replacement hot water cylinders as well as newly installed hot water cylinders. When a “repair” or “like for like replacement” takes place, the building act allows one to maintain the current state of affairs. For example, although tempering valves are required by law, a plumber does not have to install a new one when replacing an existing old or damaged hot water cylinder that never had a tempering valve to begin with. Its good practice but not a legal requirement. He can just go ahead and maintain the existing setup treating the installation as a “like for like” situation.
But then this principal does not apply to seismic restrains. The DHB is yet to comment on this and we will update the blog once we know more.
Because compliance is relative and no job is like another, you want to be safe and ask the right questions before committing to any installation. Its always best to make an educated decision rather than deal with the unwanted consequences of ignorance.
A cylinder tray needs to be connected to an approved point of discharge via a 32mm – 40mm drain. In many cases, for example double story homes the route of this drain becomes a major challenge. Especially when you are talking about cutting walls open or having surface mounted pipework to get the drain out.
If the cost or convenience of having a cylinder tray is not attractive, there are alternatives within the same ballpark in terms of $$$.
For example Instant water heating. For about the same price of new hot water cylinder + tray you can convert to gas and enjoy the many benefits. We offer LPG and natural gas solutions. Future-proof or expand, your possibilities are limitless.
Relocate your hot water cylinder to the outside and free up that cupboard space. In external situations, no cylinder tray is required and the costs are about the same as a new internal hot water cylinder + tray.
Most of our customers tend to go for this option when the installation of a cylinder tray becomes too difficult or expensive. Talk to us for more information.
AMENDMENTS IN G12,
Lets have a look at G12 a bit closer.
You can view the old and newer version (third edition) of G12 by following this link VIEW G12 AMENDMENTS.
Its very interesting to see that they have removed the wording from 6.11.3
a) Safe trays complying with Paragraph 5.2.3 where water could penetrate another household unit within the same building.
Which now reads:
6.11.3 Storage water heaters shall have: a) Safe trays complying with Paragraph 5.2.3
The above relevant paragraphs read as follows:
5.2.3 now reads..
Safe trays Performance E3.3.2: states that; Free water from accidental overflow from sanitary fixtures or sanitary appliances must be disposed of in a way that avoids loss of amenity or damage to household units or other property. An acceptable method of preventing water damage is to locate a safe tray below the water tank (see Figure 4). The safe tray shall incorporate a drain with a minimum diameter of 40 mm. Where the tank overflow discharges into the safe tray, the diameter of the safe tray drain shall be greater than the overflow pipe from the tank and comply with Paragraph 5.2.2.
5.2.2 Overflow pipes Water tanks shall have an overflow pipe to discharge any overflow to a visible place within the same property that does not create a nuisance or damage to building elements. The overflow pipe shall be sized so that the discharge capacity is no less than the maximum inlet flow. The outlet of the overflow pipe shall not permit the entry of birds or vermin. Overflow from a WC cistern may discharge internally into a WC pan.
COMMENT: Manufacturers’ literature must be referenced for pressure and flow information on tempering valves and tapware. Outlets (e.g. shower mixers and showerheads) must be appropriate for the available flow and pressure. Note the limitations on lengths and pipe sizes given
6.11 Water heater installation
6.11.1 Water heaters shall be installed in accordance with the manufacturer’s instructions.
6.11.2 Where heating units, sacrificial anodes, thermostats, pipework connections, valves, or other accessories being components of a storage water heater are installed, they shall be accessible for inspection, maintenance and removal.
6.11.3 Storage water heaters shall have: a) Safe trays complying with Paragraph 5.2.3 b) Connections compatible with the pipe material used, and c) Drain pipes (for every storage water heater of more than 45 litres capacity) which: i) have a conveniently located isolating valve, and terminate with a cap or plug suitably located to easily empty the vessel for maintenance, or ii) terminate outside the building with a cap only.
The installation below shows the safety valves discharging into the cylinder plug and waste, which does not comply as one could argue that these pipes are blocking the passageway designed for the control of accidental water which is managed by the safe tray only. NZ Regulations define acceptable methods of discharge which includes safety valve drains.
When selecting a new water heater for your home, choose a water heating system that will not only provide enough hot water but also that will do so energy efficiently, saving you money. This includes considering the different types of water heaters available and determining the right size and fuel source for your home.
Every home has a water heater and most of us are familiar with the big metal cylinders that can be found tucked away in our laundry room, basement or special “hot water cupboard”. Like all technology though, water heaters are constantly evolving with new design, new fuel systems and new sizing.
Storage Hot Water Heaters:
Tankless Hot Water Heaters:
Solar Hot Water Heaters:
Heat Pump Hot Water Heaters:
The newer styles have generally lost the big bulky tank completely in favour of hot water-on-demand. What makes a water heater (no matter which type you have) interesting is that they exploit the heat rising principle to deliver hot water right to your tap with a minimum of fuss.
To create hot water, a scientific process called thermodynamics is required. This process uses an energy source to heat water above the initial temperature it arrives into your home at. In a typical home, we use hot water in cooking, cleaning, bathing, and space heating.
There are various types of water heaters available and the type you choose will inherently depend on where you are based, how many people are going to be using hot water and the kind of energy sources you’ll be using (electric, gas, solar or wood).
Your water heater is a cleverly designed system that heats cold water to an ambient temperature. They are generally reliable and can operate for years without any issues. When water comes into your home, depending on the time of the year, it makes a journey through a system of pipes, and it’s usually cold or cool. If you are not a fan of bathing in cold water or washing your dishes or clothes in cold water, then you need a water heater.
When choosing a water heater, you should keep an eye out for a technical term – “recovery rate”. The Recovery Rate is the speed at which a water heater heats your water to 37.7C in an hour. Once you draw water faster than it’s heated, the temperature drops. Choosing a water heater that has an appropriate capacity and recovery rate depends on how much water your home demands and how your unit heats the water. Typically, heaters with low recovery rates have a high tank capacity. Although it takes longer to heat the water, there’s more of it for intermittent use. Electric heaters fall into this category. On the other hand, a fuel-fired heater (gas or oil) with a high recovery rate needn’t have a large tank, because it can heat the water faster. In general, electric models have the lowest recovery rate, and oil-fired units have the highest.
If you’re considering replacing or simply installing a new water heater, looking at the various advantages and disadvantages is always wise. Some of the general pros and cons we can share with you are:
We know that purchasing a water heater requires a lot of thought. Call us on 0800 429 546 today and we can help you select the best water heater for your needs.
What is an electric hot water heater?
How do electric hot water heaters work?
What are the differences between hot water heaters available?
Most of us don’t give a passing thought to how our water is heated as long as it is hot when we turn on the hot water tap or get in the shower. There are various ways our water can be heated and these generally are by Gas, Heat Pump, Solar, Wetback or Power (Electricity).
An electric powered water heater can be referred to by many names – a hot water storage tank, a hot water tank, thermal storage tank, hot water thermal storage unit, heat storage tank or a hot water cylinder.
Electric hot water cylinders are the most common form of water heating in New Zealand.
The cylinders use an electric element in an insulated tank to heat the water to a temperature set by a thermostat.
It acts a bit like a hot water jug or kettle. It has an immersion element inside the cylinder (which looks like a metal loop or coil) and it heats the surrounding water.
The cylinder is an insulated water tank with a cold tube to carry water in, and a hot tube to send the water where it’s needed inside the home. The heating is controlled by a thermostat that turns on the heating element when the water goes beneath the pre-set temperature.
When the heating element is on, electric power runs through it, creating heat. Unlike a gas water heater, the heat does not go through a heat exchanger. Instead, it flows directly into the tank’s water supply.
Electric water heaters (with an immersion element) are more energy efficient than gas water heaters. A conventional electric model averages a 90 percent efficiency rating, while a conventional gas water heater averages a 60 percent rating. Electric power is generally more expensive than natural gas.
Gas does outperform the electric model in water heating speed and recovery time. A gas heater can heat around 190 litres in roughly an hour, while an electric heater takes several hours to heat the same volume.
Some other benefits to electric hot water heaters are that out of all the various types of water heating products available, they have the lowest upfront cost.
They also have a certain amount of flexibility. You can buy cylinders with additional connections suitable for having a solar water heater, heat pump water heater or wetback added in the future. This allows you to change the way you use your hot water, and for adaptation should your family size grow or the demands you require on hot water change.
You can purchase an electric hot water heater that has a thermostatic control. This means that it will automatically turn off when it reaches the temperature you set on the thermostat. This will save you money over time.
If you have a boiler system in your home, an electric water heater will not be connected to your boiler. This means that if your boiler breaks down, you can still generate hot water for your home.
If you well insulate your electric water heater, it can keep water hot for several hours after it switches off. You can set a timer on your heater so that it only switches on during cheaper off-peak electricity hours.
You can usually turn your electric water heater on or off by simply flicking the switch on the wall socket. This is a great power savings ability especially useful if you are going away on holiday and you will have no need for hot water in the house while you are away.
And what kind of things should you be aware of regarding an electric hot water heater?
- Heating water using electricity is more expensive than heating water with say, gas. A typical electric water heater uses 3 kilowatts of electricity an hour, so it will cost the average house about 78c an hour to run. Most households will need to run an electric water heater for at least a couple of hours a day to get the water hot enough – costing at least $560 a year.
- An electric water heater needs a thermostatic control, otherwise it can heat the water to far too high a temperature.
- Some heating engineers may recommend you leave your electric water heater on 24/7 – however, this can be very expensive unless it has a thermostatic control.
- Be aware that you need to heat the water in your electric water heater to above 50°C to kill off bacteria.Above all consider all of your options. What works for one household might not be the best option for yours. Getting the sizing, the placement and the installation right is important for obtaining your long term enjoyment from your new water heater.
The image above reinforces the importance of using individuals that understand the physics of hot water and the effects an installation can have on its surroundings.
So at what point will a cylinder explode?
In principal it’s simple to understand. Heating a substance causes molecules to speed up and spread slightly further apart, occupying a larger volume that results in a decrease in density. So “larger volume” means “more space” which is limited to the size of the hot water cylinder.
If hot water is not used and your thermostat fails, your immersion element will continue heating your water (to boiling point) until such time one of the pressure relief valves activates and relieves the pressure. Every installation should include two relief valves, one on the cold water side and one on the hot water side.
This regulation was put in place around 1997 meaning that any cylinders installed prior to that may only have one source of pressure relief. Hence the low pressure vent copper pipe going through the roof.
This is where it gets tricky. Many installers dont bother replacing older valves when replacing an old hot water cylinder with a new one. Others have managed to install a tempering valve on a low pressure system right into the overflow pipe, blocking the only means of pressure relief. The hot water system then becomes a time bomb which may result in something pictured above.
Sometimes its not the plumbers’ fault but rather the homeowner who sees a pipe dripping on the outside of a house and thinks.. “Oh, this should not be leaking” and decides to “blank” it off by any means available, creating the perfect conditions for a catastrophe. My recommendation on this is, see a dripping pipe? Please call the plumber.
If you are unsure about what valves you need or already have, send us an email or give us a call for help.
- Price Price Price
Compare the price you have for one brand with another quality brand. Don’t be shy to ask for an alternate brand quote. Look at the differences and select the product that will most likely meet all your expectations now and in the future. This will also filter out those who are ‘partial to one brand’. They will always give you reasons as to why ‘their’ brand is better than the others.
- Don’t Settle for Less.
If you have to replace your existing hot water cylinder, make sure you get the most recent technology and quality. Many installers will try to flog off outdated stock and make it look like the deal of a lifetime. You will be surprised what modern specifications you are able to get for the same price without having to compromise on quality or warranty.
- Low VS Mains Pressure
Let’s face it, with today’s technology, the world is going mains pressure. If you are replacing your low pressure cylinder, don’t let anyone tell you that you can’t replace it with a mains, because you have low pressure tapware. You can in fact upgrade to mains pressure and set your mains pressure system to accommodate your low pressure tapware. That way you have already future proofed for your upcoming new and amazing mains pressure tapware.
- Future Proofing
This ties in nicely with point #1. Believe it or not a cylinder that is future proofed for solar, heat pumps and alternative energy will cost you the same as a cylinder that is not. With climate change and the costs of energy on the rise, you want to be ready for the next energy revolution which will involve having a cylinder that is also ready.
Read the fine print! They say you get a 20 year warranty when in fact it’s conditional to a yearly service and expense, this should not be required at all, especially in the first 5 years. Seven to 10 years is a good indication of where a warranty needs to be here in New Zealand. Please note that parts subject to wear and tear are in most cases only covered by a one year warranty.
- Power Supply
The trouble with cheap quotes is that they tend to leave out what They believe ‘you don’t need’ but will in-fact only benefit you in the long run. For example, this is the case with the power supply to your new hot water cylinder. If you are replacing an older hot water cylinder, your power switch will be of the same age and wont comply. If it’s round and in most cases black (Baker Light Power Switch), it must be replaced. These switches are deemed as unsafe (electrical hazard) by the electrical board of New Zealand because they can only support 10 AMPS (just below 2KW) and most cylinders now require 16 AMPS the same goes for the wiring from and to your hot water cylinder and electrical board. The last thing you want is for an older component to cause damage to your new shiny hot water cylinder or home and voiding the warranty in the process.
- Compliant Installation And Certification
No one expects you to be a plumber but it is always good to know a bit more about your installation. Do the research and find out what the minimum requirements are. The best place to start is by looking at the New Zealand Building Code G12 which can be downloaded for free >> G12 HERE. It will only take 15 minutes to get your head around the basics. You will then be able to ask the right questions and the installer will be very careful not to cut any corners. Make sure your installation complies and that you have received a producer statement on completion. This will be very important when you come to sell the property as it becomes part of your LIM report.
- Maximise The Size Of Your Storage
if you have the space, USE IT. The more water you can store the more efficient you become. They all come with 2KW or 3KW elements so you are not ‘using more energy’ you are only heating more water that is stored and ready to be used. The insulation values are the same so minimal heat loss. Considering point #4, another advantage is, should you decide to add an alternative cheaper form of energy later, you will be able to store more water that has been heated efficiently. Because most forms of alternative efficient energy are dependent on having sunlight or the right temperatures, you want to heat as much water as possible during that time and use your storage outside that time. Hence it’s best to store as much hot water as possible. As a small example, the price difference from going from a 180 Litre to a 300 Litre hot water cylinder is about $300.
- Licensed Installers
We cannot voice the importance of this enough. Make sure the installer is registered! Regardless of whether the installation complies or not, the technician must be licensed and registered by the plumbing board of New Zealand. If not and something happens, your insurance will bail. ASK TO SEE THE LICENSE and on completion ask for a producer statement. Selecting an installer that is a Master Plumber will ensure you have someone that is experienced and insured to do the job.
- Drain Discharge Size And Location
some guys just looooove cutting corners and the discharge pipe is the most likely place. It takes more materials and more time to run the drain to an approved and less annoying position. On most installations, the drain must be 20mm to comply (refer to G12 above). All pressure relief valves from your hot water cylinder discharge water every now and then. This happens as water is heated and expansion takes place. The last thing you want is for a pipe to be sticking out your front door or constantly discharging water onto your footpath. All drains must discharge into an approved point of discharge. What is considered an approved point of discharge? Give us a ring to find out or stay tuned for my next blog.