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476 posts

Ultimate Geek
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Topic # 175360 26-Jun-2015 09:20 Send private message

Is it easy to control the temperature on the Hot Water Cylinder?  I believe mine is set to hotter than required and might be causing slightly higher than usual electricity usage. Water coming out of the shower and taps is very hot on the hottest setting.  It's a fairly modern Rheem mains pressure cylinder.  I can see a red valve but it seems to be locked. Can put some pictures later on. Thanks

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Uber Geek
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  Reply # 1331889 26-Jun-2015 09:24 Send private message

There should be a small philips head screw you can turn to vary the temperature. It might be hidden behind a steel cover plate screwed onto the outside of the cylinder. 

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  Reply # 1331896 26-Jun-2015 09:38 Send private message

The minimum the HWC can be set to is 60deg, and the hottest it can be coming out the tap is 55, so be aware of those temperatures. Your cylinder will have a tempering valve that controls the temperature to the hot tap, this should be able to be adjusted to lower your temp.

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  Reply # 1331897 26-Jun-2015 09:42 Send private message

will probably look something like this:
http://apexvalves.co.nz/tempering/1520mm/

even has a nice video on how to adjust one

gzt

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  Reply # 1332166 26-Jun-2015 15:16 Send private message

quebec: Is it easy to control the temperature on the Hot Water Cylinder?  I believe mine is set to hotter than required and might be causing slightly higher than usual electricity usage.

The cold temperatures will be causing higher than usual usage. When water is cold more energy is required to heat it.

But if there is a major or minor fault, fiddling with settings will just mask the issue.

Better to have a plumber check the system function if you think there is an issue.

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