On May 30, 5:20*pm, "Dimitrios Paskoudniakis"
wrote:
My 3000+ sq ft *(incl basement) house has two-zone heating/cooling, with an
oil furnace and air conditioner for the basement and first floor, and a heat
pump for the upstairs.

I bought the house three years ago, when oil was less than $2.00 per gallon.