The heater in our hot tub is not working. We would like to put in a natural gas dedicated hot water heater and wonder if a "tankless" model would work by just recycling the water? It would be a lot cheaper than buying a new hot tub heater. Plumbing not a problem...just don't know if this would work. Thanks in advance.

no propane coming out at the pilot valve, tanks are service & turn on. the gas stove is working.

Our old water heater is about to go out and I've heard that tankless water heaters can save me money. Are there any other reasons I should make the switch?

Thanks!

and how they will heat the house.

We are in the process of building a new home and it is time to pick out the hot water heaters. There is so much information out there and I need some help choosing the right one! Here are some details...

We live on Gulf Coast in MS (so it's warm almost all year)

master bedroom - 2 sinks, 125 gal whirlpool tub, separate shower
2 other bathrooms with tub and shower, 1 double sink, 1 single sink
1 additional bathroom with double sink, stand up shower only
Kitchen - sink, dishwasher (cant think of anything else that would need hotwater ??)
Laundry roomm - Washing Machine (a larger one - we are a family of 6)

We do not want gas at all in the house so it must be electric, but I was wondering how the solar/electric tankless units work too, and with all of the bathrooms and appliances using so much hot water how many units would we need to purchase.

Thanks so much! I cant wait to get some insight! This is a very important decision that must be made soon!
note: my husband is dead set against gas. He does not want a gas tank buried underground in our backyard and if truly afraid the house could blow up if we have gas. (his ex wife's house burned down 5 years ago and his son died in the fire, our house burned down 15 months ago. This was due to an electrical storm, but really there is no changing his mind. I agree with you though. ughhh)

I have never drained a hot water heater before and was told that it should be drained every couple of years to help make the water heater last longer.

I am upgrading my boiler and am trying to decide whether I should get an on demand hot water system or the conventional separate hot water tank. Which is more energy efficient and what are the downsides of each.

Is a tank heater seem better than a tankless one?

I'm from Canada EH! And up here we commonly get sub-zero weather in the winter - it can sometimes gets as cold as -30 oF. I heard stories that a tankless water heater was ok in the summer, but in the winter when the temp is really cold, the hot water is that much colder - i.e. warm instead of piping hot - anyone with experience on this?