I_Miss_Daniel, 10 months ago I can get about six hours of free heating during the day from the sun over winter in Australia, using solar and a split system. Only if the sun is unobscured though. Summer is better of course, due to the longer daylight.
I can get about six hours of free heating during the day from the sun over winter in Australia, using solar and a split system. Only if the sun is unobscured though.
Summer is better of course, due to the longer daylight.