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My central heating is a conventional system with CH feed tank in the loft, a pump next to hot water tank, 3 way valve, a hall temp. rotary controller, a “Ideal Minimiser FF60 fanned flue” boiler which is now obsolete. The boiler starts with fan running, ignition on (sparking) then fire up...

http://www.diynot.com/forums/viewtopic.php?t=60746%20for%20the%20code%20of%20Practice. http://www.opsi.gov.uk/si/si2006/20060652.htm Unless my interpretation of the laws is wrong, the above are clearly defining the go and no go area of Buildings to include gas and electric. At the...

http://www.diynot.com/forums/viewtopic.php?t=60746 for the code of Practice.

The lever on the 3 way valve in my CH system stays where it is in the auto position when running. However, it would move back to the off position (extreme right away from the auto position) when off. Then it would be able to manually move with resistance to "on" position (mine has manual...