[robinwassen]

I am thinking of the more basic air/air units rather than this air/water.

One well placed air/air can reduce the need for direct electricity heating a lot, even though some might be needed to assist in a bedroom or so.

My parents installed a air/air unit in the middle of the house (180kvm) for $2.5k this summer and it keeps the whole house heated except one bedroom that needs some assistance from a radiator.

[brabel]

That's about the same size as my house... I also have a air-to-air heater but don't even use it because the central heating is more than enough. But interesting to know it could actually manage almost the whole house if I need it!