11-10-2008, 19:52
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#34
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Join Date: Dec 2004
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Re: For those of you who want to monitor you electricity usage
Quote:
Originally Posted by Neil
It all depends on the plumber at the time and 35 years ago when it was first installed
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If it had been installed 35 years ago, there would have been 2 circuits from the boiler.
Circuit 1 - Gravity primary hot water circuit including cold feed and expansion. This circuit would have been 1" or 28mm ( will draw it for you if wish)
Circuit 2 - This would be the heating circuit, complete with circulating pump, this circuit would have been 3/4" or 22mm.
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