To buy the electric will cost more but in the end what through out the year is better on the pocket book? Propane is just going up and up as we are aware.

I have heard that tankless water heaters are more effecient, therefore cheaper on utility costs. How much would I save in a year on my gas bill? 50%? 30% 75%? Would it be worth switching? My water heater is only about two years old.

Are these on-demand, instant heaters with new technology or old design that few persons are aware of ?
Where do you find these heaters ?

i am looking into instant water heaters for my home,and wornder if anyone has had any experiance with them,good or bad. do they really save money in the long run?

We're buying a new house and the existing hot water heater is working well, but 20 years old!
It is about 15 feet away from the nearest outside wall.
Can I install a tankless in the same spot, or do I need to be closer to the outside wall?

Does the water really stay hot, or just lukewarm and how long have you had it?

I bought a tankless hot water heater less than 3 years ago and it has stopped working. I sent it back to the company who claims that they fixed it. It worked for less than two weeks, then stopped working again. After going round and round with the company, they said it must be something in my house that is causing it to stop working. It is a gas tankless hot water heater with an electric ignition. Does anyone know what in my house could cause it to stop working? Of course she wouldn't answer that question for me. Also, what is the average lifespan of a tankless hot water heater. I have heard twice as long as a traditional tank water heater.

Our considerations are 1) always having hot water available (duh), 2) energy efficiency and 3) cost. What do you think?

With all the rebate incentives, I'm thinking about going from a 50 gallon Electric storage water heater (made in 2002) to a natural gas tankless water heater. How much will I expect to save a year? It's just two of us in the household, but we're planning on expanding the family. Our current electric bill is about per month. After all the rebates, the price to upgrade would be about 0 including installation. Is it worth the investment?

Is it better to use a smaller, separate propane water heater for the in floor heating?