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Thinking of upgrading to a Propane fired on demand water heater. Does any one know the energy usage (cost wise) difference between that and an electric water heater?
Not sure where you get your info but there are really no household tankless water heaters that are 400K BTU. Most are just shy of 200K. Rinnai are available on Ebay and other places on the net. They are less than $1000 as well.A tankless water heater is basically a small boiler as it has a input BTUH (British Thermal Units per Hour) of say 400,000 BTUH where as your standard newer tank water heater only has a input of 40,00 BTUH, .
An electric tankless has an X deg gain, where a gas fired will heat to a set point. I have looked into both tankless, feel the savings would not be there at either place. It's up to you, oh and their life span is only 5 years compaired to 10 on a tank waterheater.
Actually, the claim is that they are way more efficient during the heating phase as well.remember,the tankless WH only saves during idle times.
Tankless water heater lifespans are estimated to be 20 years...not 5.An electric tankless has an X deg gain, where a gas fired will heat to a set point. I have looked into both tankless, feel the savings would not be there at either place. It's up to you, oh and their life span is only 5 years compaired to 10 on a tank waterheater.
Actually, the claim is that they are way more efficient during the heating phase as well.
In Southern California Tier 3 electric costs including the generation charge is $0.23/kwh. I would probably hit Tier 4($0.27) with an electric. That is why there are not many electric water heaters in So Cal.
In the end, the only way to know if the cost of switching is worth it is knowing both the electrity price vs propane price in South Carolina. Until both of those are known, you can't calculate what any savings might be.
No thanks! There is a reason its expensive to live here! Its worth it!"they" is wrong.....it takes the same amount of electrical energy to heat water, tank or no tank.....it is claims like this that are targeting the naive.
.23 cents/kw......you need to move east son!!!!