Quote:
Originally Posted by Steve
I respectfully disagree. With a 40-50 gallon water heater you are periodically using gas or electricity to keep the water in the tank at a certain temperature--usually 140 degrees. Even if you're out of the house for the day or out of town for a week your water heater is doing that reheating process.
With a tankless water heater you only heat the water that is actually going through the system. If you're gone for a week no heating is done.
Having said that I have been told by those who have one that the electric tankless water heater does not work as well as the gas one. Ours is gas. We could turn the water on and leave it running for 24-hours straight and the water would still be coming out of the tap hot. I think ours is great and I think it's one of the best additions we have made to our home.
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See Post No. 5. The OP was asking if he could save money in the long run by incurring the extra cost of switching from a tank type water heater to an electric tankless water heater. The answer to the OP's question is clearly no.