electric vs gas water is simple. Everyone seems to claim that a gas water heater is the cheapest energy cost. But looking a little deeper I can’t find out how much energy will go up the exhaust flue. I mean evan if I find a direct vent water heater there is still a 4 inch hole letting warm air out 24/7 and cold air in.
I’m thinking that if our electric costs are faily modest and our gas prices are towards the expensive side the trade-off point might be that the electric water heater doesn’t need to be vented.
Seems like a worthwhile assumption but I simply can’t find the cost of a 4 inch hole. Any idea?