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Its time to service your water heater

New Zealand weather is changing and temperatures are dropping. So it’s time to think about getting your water heater or central heating boiling system serviced.

Servicing a Rinnai
Servicing a Rinnai

Why should I get my water heater serviced?

  • To ensure its operating safely > Regardless of system type you want to make sure that its safe! With gas water heaters our service consists of a comprehensive checklist some of which are the following: checking a gas leaks, ensuring the fan is operating correctly, making sure flue gasses (CO and carbon monoxide > combustion check) are in the correct range and not a threat to your family. We also check the appliance physically to ensure the flue is not blocked or leaking, remove cobwebs and give is proper clean from the affects of its natural surroundings. Electrical appliances are also checked for safety, ensuring all safety valves are operating within an acceptable range protecting your family from burst tanks, and scolding temperatures.
  • To ensure its operating efficiently >> Another main component servicing your water heater and central heating boiler is make sure its working efficiently. Is it burning more gas than required? Is your power / gas bill to high? The way your appliance processes Energy is very important if left to run in-efficiently your tear and wear factor will increase making future repairs expensive and reducing the appliances life span!

I have only listed a few things that apply when we service your appliance. Our comprehensive check list will ensure that you can enjoy the upcoming winter days not having to worry about high power / gas bills knowing your appliance is running safe.

Here a range of appliances we can service:

  • Electric Hot water cylinders
  • Gas hot water cylinder
  • Gas central heating boilers
  • Commercial combi-central and domestic heating systems.

Hot water cylinder NZ specialise in how water heating appliance servicing. Whether gas or electrical, residential or commercial. Book yourself in and make sure you ready for winter!

 

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Another Freeloader bites the dust!

Its amazing how many of these old Vulcan freeloaders are still around in the Auckland area! Freeloader-hot-water-cylinderThis particular one looks pretty bad so im amazed it’s been going for this long. Fortunately access is good and there is still enough hours in the day to replace it with a new Rheem Stellar. We looked at replacing the hot water cylinder with an instantaneous water heater but location and the existing gas pipe size made it very inconvenient and costly for the client. In regards to gas pipe sizing, the piping shall be of sufficient diameter diameter to ensure adequate gas supply to the gas appliance and the Rinnai would have required 200 MJ! Difference in price was $ 700. We are currently offering great gas conversion specials, if your interested checkout the website for specials of give us a call and we will be more than happy to find the right package for you!

For more information on repairing or replacing your Vulcan Freeloader, please visit VULCAN FREELOADER HELP

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What a beautiful wetback installation

2 guys and 8 hours later this wetback installation was compete. Quick recovery time by having a wetback ready hot water cylinder just above the wetback.

Some Essentials in the design of the flow and return pipes when it comes to wetbacks:

  1. Pipes connecting the wetback and the storage vessel must have adequate rise and fall. This will wetback-hwcallow convectional flow and prevent air locks. G12 AS1 states a minimum of 1 in 7 slope to ensure heat will transfer between wetback and storage heater by thermo siphon.
  2. Flow and return pipes should be in copper and generally be a minimum of 25mm diameter. AS/NZS 3500 part 4 section 7 includes a table to determine pipe size according to length of run. The open vent should be a minimum of 20 mm diameter.
  3. If the hot water cylinder is not positioned high enough above the heat source it is possible for reversed circulation to occur. Reversed circulation, also known as back circulation, takes place when heat is transferred from the water cylinder back to the heat source.
  4. The bottom of the water cylinder should be at least 300 mm above the heat source assuming the flow line is connected to a riser pipe or coil within the cylinder. If no riser is fitted a distance of at least 600 mm should be made between the two appliances.

To find out more about wetback and hot water cylinder regulations please visit our regulations page. If in doubt give us a ring and speak to a qualified technician