Can you install horizontal ground loops in the winter? I have a contractor that will do the install when ever I want. I was curious if this is a good idea or not? The ground is not frozen here and we have zero snow. I have used 125 gallons of fuel oil and 1 ton of pellets. I called to get quote on fuel oil and they said it would be $3.79 per gallon. So if I wait till my tank is almost empty or empty it will cost me $947 + 3% tax. I usually burn through at least 800 gallons of fuel oil each season. I can get by for a few days with out having my furnace in place as I have a pellet stove and a few electric heaters. What do you think?