Author Archives: Mr Cylinder

Heatpump hot water cylinder conversion

heat_pump_hpt_water_cylinderIf your looking at saving power ($$$) with your domestic hot water heating demand, your hot water cylinder is leaking or you are keen on upgrading to mains pressure why not consider a heat pump hot water cylinder?

Save up to a third on your hot water bill with this Aquarian Heatpump! These heatpump cylinders can be installed internally as well as externally with the difference that the air intake must be ducted to the outside if the installation is to take place inside. This is usually achieved by ducting directly up through your existing hot water cylinder cupboard and out through the roof. Our installation special includes a flashing fro your roof, all ducting (up to 5 meters), all involved labor and materials for $ 4999 including GST . If your a high hot water user or want a quick return on your investment now is the time to place your order! For more technical info on this heat pump hot water cylinder please CLICK HERE

Please note that electrical services are not included and an obligation free site visit must be made by us prior to our commitment.

For alternative heat pump specials please visit our heat pump catagory section.

Over 30 years! Starkie HWC supplied by Henry & Co LTD

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Every now and then we come across goodies like this! This hot water cylinder has been supplying hot water for over 30 years! Originally supplied by Henry & co Ltd. A quick Google search reveled the company is still around as a tool supplier. The bottom clearly show the state the cylinder is in, we are confident the cylinder rusted through years ago but its own weight created a natural seal preventing water to lea out. Eventually the holes got bigger and bigger leading to what it is today. I would love to know how many showers this tank accommodated!

What a great find..rusty_low_pressure_water_cylinder.

Gas Water Heating on LPG

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Another successful LPG installation onto a Rheem 27 instantaneous hot water heater. The purple bin which is holding up a 9KP LPG cant be missed and is currently only a temporary solution to test the system until the 45KG bottles arrive which will be standing on a concrete base as per the gas standard.

In this artcle I wish to discuss the commissioning of LPG cylinder systems.

The commissioning of LPG cylinders must meet the same requirments of NZS 5601. However, special methods and precautions are required due to the special characteristics of LPG and its equipment.

The special requirements of LPG installation commissioning relate, for example to the relative density of LPG and its storage as liquid. Special purging methods must be used for LPG and sufficient ambient heat to boil the liquid gas.

Special LPG equipment includes fixed and mobile installations including single cylinder, twin packs, or cylinder banks. Systems may have auto-changeover regulators, which may include automatic ordering features.

NZS 5601 includes references to commissioning gas installations which requires every part of a gas installation to be commissioned and certified.

If you are getting quotes for gas water heating its important to make sure the installers are registered gasfitters. Even qualified trades people make mistakes so also very important to check with the installer that all commissioning requirements have been met.

Hot water cylinders LTD have several gas water heating specials which includes supply and installation. For more details please call us on 0800 429 546 or email gas@hotwatercylinders.nz

Ruud Hot water cylinders (Ruudglas Pacemaker DV)

Ruud_hot_water_cylindersIn this picture you can see two old gas powered Ruud hot water cylinders. The flues have been installed without a down draft diverted using a powered flue to remove products of combustion. These  cylinders have lasted 10 years and its amazing to see that both show the same signs degradation. The most challenging part of this job is that the cylinders have been installed in the worse place possible. Down three sets of stairs in a lower level that is over 300 meters away from vehicle access. It will be a logistical challenge! The job description is to remove the two gas powered cylinder and replace with one storage tank which will include a heat exchanger powered by a system 24KW system boiler. The storage tank will allow us to maintain the existing plumbing arrangement which also includes a ring main. The new system will be saving on operating and maintenance costs straight away! The old powered flue can also be removed as the new unit comes with a compact flue arrangement that can routed as required. This area if fully ventilated hence all building and code requirements can be met. With more sophisticated jobs such a this planning is paramount. Experienced installers can save you money and hassle! If you are looking at replacing your old gas hot water cylinder with an instant water heater, please view our instant water heater specials here.

Its been a busy week for hot water cylinders!

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2015 has just started and we are already in full gear!

All these leaky hot water cylinders can now only be disposed of as scrap metal. The mixture is never the same. Sometimes we have more mains pressure cylinders and sometimes only low pressure. A few months ago we even replaced 8 external gas Vulcan Freeloaders in 3 weeks! Its funny how the trend goes and very interesting to watch such anomalies.

Hot water cylinders LTD has many upcoming specials in 2015.  Some of these include:

  • Mains Pressure conversions
  • Instant gas hot water conversions. (gas water heating)
  • Stainless Steel upgrades.
  • Relocating internal hot water cylinders externally.
  • Complete services and maintenance programs.

To get your obligation free quote on replacing or repairing your hot water cylinder, please call us on 0800 429 546 or email quotes@hotwatercylinders.nz

No Hot Water on New Years :(

no_hot_water_testingThe last thing you need when you come back from holiday is to find your hot water cylinder has stopped working especially when you urgently just want to take a shower! Many people tend to turn their hot water cylinders off during this time. This in itself is not a problem unless your hot water cylinder is 10+ years old. Turning off the power to your hot water cylinder will of course allow the body of water inside the tank to COOL OFF, this is something your hot water cylinder is not used too as water is constantly maintained at 60 degrees. This “cooling off” will result in extreme contraction of the tank itself which initially does not cause the leak. Most Aucklander’s will coming back from holiday and the first thing they do is switch on the power to the hot water cylinder which will immediately power-up a 3KW element which in return will heat up the body of water back to 60 degrees in a relatively short mount of time. This will now cause the tank to expand very quickly. Depending on age this is when your hot water cylinder might spring a leak! Unfortunately we cannot give you advice whether to keep the power on or off during your absence but encourage you get your hot water cylinder serviced prior to going on holiday to ensure you don’t come back to any nasty surprises. In the image above the home owner was very fortunate that only the immersion heating element was damaged. Replacement of the element was under $200 and included a full check of the thermostat and hot water heating system.

30 year old Simplex hot water cylinder

simplex_hot_water_cylindersIt’s amazing how many of these Simplex hot water cylinders we come across in the Auckland area. This year we ripped out more than 100 Simplex hot water cylinders! In most cases the hot water system was converted to a main pressure system which required an installation of an additional drain and mains pressure valves. In this picture you can clearly see that only means of safety available is the open vent which deals with any expansion (sometimes caused by over heating). There is no tempering valve, no expansion valve and no drip try. Its amazing that these copper cylinders can last up to 35 years without bursting. Usually the only reason they do end up bursting or rusting away is because the thermostat fails which results in the element overheating the water to 99 degrees and this puts more stress onto the tank resulting high level expansion and contraction cracking the weld. Quality of water is also a big contributor to rust and life expectancy of a copper hot water cylinder.

Has your cylinder burst before the recommended expectancy? Maybe its a good idea to investigate the cause before installing your new one to ensure your new hot water cylinder lasts much longer.

External Rheem 135L Stainless Steel

external_rheem_hwcGreat looking installation! If only the weather boards behind the hot water cylinder looked as good :). This stainless steel 135L Rheem main pressure was completed in just under 4 hours! It included a new mains pressure valve pack, restraint strapping, all external copper pipe, electrical and plumbing work for just under $ 2300 including GST!

Hot Water Cylinders Ltd has a huge amount of Rheem stainless steel hot water cylinder stock that has to get out! Our range includes 135L, 180L and 200L stainless cylinders. Suitable for external installations these cylinders will also allow you to relocate your internal cylinder at an absolutely unbeatable price. Call us today on 0800 4 Cylinders for more information, our team is here to help you right away.

Do you already have a quote? Call us and we will beat it, that’s a guarantee!

Do you want to convert to instant gas water heating?

rheem_27_instant_gas_water_heaterAn instantaneous water heater only heats water once an outlet is opened and the hot water comes out instantly. It will continuously heat water as it passes through the unit. When the outlet is closed, the energy source shuts off. As these units heat cold water as it flows through the heater, storage of hot water is not required, saving you hundreds of $$ every month!

In can be installed virtually anywhere but its main advantage is that it is ideally suited for for single point applications. It is fueled by either electricity or gas. instantaneous units are designed for mains pressure supply and can have a maximum operating pressure of up to 1000KPA.

Depending on the size of your home the instant water heater must be sized correctly to ensure your flow of hot water does not starve out. Most common sizes are 20L/Minute 27L/Minute and 32L/Minute. In the example above we have installed a Rheem 27 to a 2n bedroom villa in Remuera.

Click here to view the specifications RHEEM 27 Continuous Gas Heater

These units are available in LPG and Natural Gas and can be installed from $ 2800 including GST, all involved materials and gas certification. This offer does not include the electrical power point but can be arranged for $ 350  + GST. Contact us on 0800 4 Cylinders for more information.

Reclaiming your Hot Water Cylinder Cupboard

Rheem_stellarAnother happy home owner that has gained enough additional home space that will allow him to increase the size of his bathroom. Especially in small units with the current Auckland market price per square meter home owners are reclaiming their hot water cylinder cupboards! If you have the space outside you can get it out of the house. If your hot water cylinder is leaking or your looking at upgrading to mains pressure then its a great time to look at such a change. The cost is about $500 more than the standard installation and the benefits are huge!

This Rheem Stellar special we are offering will get you there.

  • More Space inside your home
  • A more efficient hot water cylinder
  • Less risk with damage to property with future leaks

Call us on 0800 4 Cylinders to more information, testimonials from existing installations are available.