Rob
That is my worry: we have old radiators as well and I am concerned that the
heat pump will have to work too hard to heat them as well as the water,
especially as the temperature reaches -15ºC (the limit for the pump).
I'll talk to Tomas or Bob, thanks.
Chris
On 2 Dec 2012, at 20:55, Rob Harrison <robhar54@xxxxxxxxx> wrote:
> There are electric air-to-water heat pumps, but whether you can use them
> will depend on the kind of radiators you already have installed. We have
> fin-tube radiators in our 1950 house, which require a higher temperature
> water than the air-to-water heat pumps can produce, so we ended up with a
> new gas boiler. Our existing boiler was kaput and we are into the cold
> weather, and our house is brick which complicates adding additional
> exterior insulation, and we need new windows too to make it all work, or I
> would have more seriously considered a Passivhaus retrofit.
>
> Where are you Chris? I have some Passive House colleagues in Ireland who
> might be able to hook you up with a local person. Actually, try contacting
> these folks: http://passivehouseacademy.com Ask for Tomas or Bob.
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