My initial investigations show the hot bits on our stuff are the exposed

isolation valves, blending valves, motors, and of course the plate heat
exchanger. None of these are insulated, and nothing inside the boiler
casing
is insulated either.

Consequently the cupboard in our utility room with the boiler and
thermal
store in make a very effective airing cupboard.
Infact, the heat it gives off is sufficient to heat the entire utility
room,
and we now leave the door open so it doesn't get too hot in there :-|


|-> -----Original Message-----
|-> On Behalf Of Andrew McLeod
|-> Sent: Tuesday, July 07, 2009 2:30 PM
|-> Subject: Re: UK_Selfbuild Insulating "awkward" bits of pipework
|->
|-> Lee wrote:
|-> > Anyone know if CH pump bodies should be left exposed, or
|-> whether they
|-> > can be lagged too ?
|->
|-> I'm pretty sure that the CH circulation pumps at work have
|-> a purpose-made moulded EPS insulation "shell" round them,
|-> but IIRC it's only round the pump itself, not the motor.
|-> I'll check when I go in this afternoon.
|->
|-> I'm following this thread with interest, because I too have
|-> come to the conclusion that there must be significant heat
|-> losses from the heat bank in spite of it's built-in
|-> insulation layer and the lagging I've put round the "easy"
|-> bits of pipe.
|->
|-> Andrew

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