The physical performance of the heating system depends greatly on the construction specification and standard of the build.
For an ATW heat pump id aim for a min B2 achievable insulation standard. I would highly recommend a HRV system and not passive vents, and incorporate windows not greater than 1.2 u values.
The initial cost of the unit is quite expensive, but I feel that it will recoup the costs over a 5 year period.
dj01
SYB,
I've an oil fired boiler but given what its cost me this year so far, I'm looking to possibly put in a ATW system to reduce costs later in 2008. The house, while relatively new, has passive vents and a lot of glass. Is an ATW a viable option for me? and what kind of budget am I looking at?
air source pump, which transfers heat between your house and the outside air are very suitable for either indoor or outdoor installation and provide significant installation cost benefits over ground source systems, as there are no requirements for expensive ground loops to be installed.I am in the middle of a new build and in the next couple of months will be getting an air to water heat pump installed (air source heat pump).
I've met people who are using the same system and they have told me that their electrical running cost over a year are at least a 1/3 cheaper (inc. all domestic their electricty costs) than just heating with oil would be.
The initial cost of the unit is quite expensive, but I feel that it will recoup the costs over a 5 year period.
Before fully commiting to the system I would be very interested in hearing from anyone who is currently using an air source pump, and what their opionions on it?
thanks
dj01
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