Geo in old brick home
Background: we put in geo last year and love it. 2100 sq. ft., well insulated, ne Ohio. My dad wants to put in geo. his house, however, is a brick house that is over 200 years old. Stone wall basement, dirt floor, crawl spaces under half the house. Solid brick walls. Currently a propane, forced air, (70,00? Btu) furnace, ac. 2,00 sq. ft. In sw Ohio.
He has had two guys out to give him a quote and the one guy said because his house wasn't insulated very well geo wouldn't work for him.
Finally, my question: couldn't the geo be sized to match the 70 000 btu furnace that kept him warm all last winter?
He will use propane as backup heat.