back boiler

Dave2010 · 10 Dec 2011

Hugh Jaleak said:
Elson wont work on a pumped system from what I can tell. I think you have a simply gravity HW/pumped CH system, whereas when central heating is switched on the pump operates to move the hot water around the rads. Balancing will only affect the rads.

With the system cold (and CH off) how long do the primaries (from boiler to Elson) take to get hot? The flow (top pipe) should get hot very quickly soon after boiler begins firing as the circulation commences. With a cold tank of water i'd expect the return to be slightly cooler as the heat is transferred into the water in the tank.

Will check this out tomorrow morning when I think it will be it's coldest. I will check the temps of the pipes also. If the coil is heavily scaled I'm assuming this would affect the heat transfer. I will try take some photos of everything also as they say a pic is worth a 1000 words

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back boiler

Dave2010

DIYnot Local

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