We spent $3,600 putting in a gas heater and fireplace insert which we were told by Delta Gas qualified for a $100 rebate. Well, after we installed it and their inspector passed it, it they now say it "doesn't qualify". It has a 36,000 BTU heater which heats a 24 x 24 room. That's how they show their appreciation to customers who have been with them 35 years. We will be putting in a new furnace this spring, it WON'T be gas.