We just replaced the furnace and hot water heater, both gas. Went with Wa Energy Services. The furnace is a 97% efficient, up from the 70% (20 years ago) that was original equipment.

We have gas heat and hot water and it seems pretty good. Will be interesting to see the bill, though.

I do know that when we replaced hot tubs that the electrical bill went down as efficiencies have sure been going up.