Originally Posted by RobG
My son is in need of a new hot water heater for his home. I am trying to advise him on getting an on-demand system.

He has:

- well water
- no soft water conditioning system
- elevated calcium in the water[*]propane gas service

Are there any issues now with using this system with well water?
What may be the better manufacturer/model to look at purchasing?


I see you're from the north. Is he? Is he married with kids or is there more than just him living in house? How old is his place, and what kind of electric service does he have?

My father and I did a significant amount of research when my parents needed a new water heater. The on demand units just could not keep up with them and what they did on a daily ( shower twice, dishes, laundry), we opted for a Rheem heat pump unit. They love it. We were going to put a booster on it as well, but after a month of use, they decided it was not needed.

At the time, the price was about $1600. He used the tax time rebates and incentives that were available and it wound up costing him $400 total out the door, with me adding new plumbing as well.