3 ms·
In my neighbourhood, ground source is triple the cost of air source. Got quotes for both about 3 yrs ago. We don't have the option for horizontal so ground so
by earleybird 5y ago
In my neighbourhood, ground source is triple the cost of air source. Got quotes for both about 3 yrs ago. We don't have the option for horizontal so ground source would have been 3, 50 meter deep bore holes arrranged in an equilateral triangle 7 meters between points.