Hi All
As mentioned in couple of previous posts, we are renovating a house with Warm Air heating. We are happy with the system but it will not work after renovation (not possible to extend the system). Since we will update the whole system, one of the alternative is to use AC for heating and cooling. DHW can done by solar, E7.
One of the issues we noticed was that EPC system is very limited. Our current Warm Air system has a new oil boiler with 90%+ Efficiency but EPC person couldn't find what to enter in system and entered lowest rating for heating.
Few questions:
Will we end up with similar issue if we use AC for whole house heating because it's not common in domestic market?
Also since Air to air heating should use lower temperature than air->water->air so CoP should be better. Can anyone confirm this.
Is anyone using AC for whole house heating, if yes what's your experience?
Thanks