Quote:
Originally Posted by swnoel
There is no boiler with a tankless coil that will get over 55-60% efficiency or is there a boiler that will get you an 89% efficiency! I'm confused where everyone is getting these numbers from? You are right when you suggest never to get the coiled cleaned... your wasting your money. Unfortunately many heating "professionals" aren't professional they'll say and do what ever to get your money...
|
I have a condensing boiler with on demand hot water. It has 95.5% efficiency.
Check out:
https://www.energystar.gov/products/...icient/boilers
Unfortunately there are no oil burners on the list nor is there and on-demand hot water on oil.
A friend of mine replace his oil burner and electric hot water heater with propane condensing boiler with on demand. His energy bill is less from prior year even though propane is a little more expensive. It's in the efficiency.