Stick N Brick Demand Hot Water Heater
This would apply to stuff that has tires so I do not feel guilty asking First of all incoming water temp would average 45F at the coldest This would be an LPG unit Must demand water heaters be pr...
Forum Discussion
drsteve wrote:
We have had a Bosch Aquastar 125000 BTU LP on demand for ten years, and love it. We're on a well, WP is in the 45-60 psi range, roughly 4 gpm delivery. Your supply water is about the same as mine tempwise. No worries there, your tap water will be plenty hot. Don't use faucet flow restrictors, they cause problems with temp fluctuations--these things need a decent flow rate, or the burner throttles back or shuts off.
No idea about the elements, mine lives in the basement.
I use a water softener, and I'm convinced it's the only reason the Aquastar has lasted for over a decade. Lime and scale are the kiss of death.
He is right about the lime and scale. I've talked to several plumbers and plumbing supply owners about the pros/cons. If you have even slightly hard water, you need to add a softener unit ahead of the tankless WH. Otherwise the WH won't last long.
If you have a city water supply (anywhere it gets cold) the cold water temp will drop to near freezing, requiring a big WH to get the necessary heat rise. Well water is nearly constant temp, so that is less of a problem.
