pdivi
New Member
For background, this is on a house overseas, where I have no access to licensed professional plumbing services. I'm on my own with this one.
The house is 4500 s.f. with 4 bathrooms. It originally had 2 tank heaters hooked into the same hot water lines, spaced at opposite ends of the house.
When these 2 heaters rusted out, a plumber replaced them with 2 tankless heaters.
There were immediate problems with hot water coming on and off during showers. My guess is that the 2 heaters were in conflict.
These are the possible solutions I have heard, ranked from most to least expensive:
1. Install a check valve after after one or both of the heaters so the backflow of hot water from one heater does not turn the other off.
2. Keep one tankless heater, change the other to a tank heater. This idea is that this would get hot water to the fixtures faster but keep some of the efficiency of on-demand.
3. Go back to 2 tank heaters. Ouch.
Any advice on which one I should do?
The house is 4500 s.f. with 4 bathrooms. It originally had 2 tank heaters hooked into the same hot water lines, spaced at opposite ends of the house.
When these 2 heaters rusted out, a plumber replaced them with 2 tankless heaters.
There were immediate problems with hot water coming on and off during showers. My guess is that the 2 heaters were in conflict.
These are the possible solutions I have heard, ranked from most to least expensive:
1. Install a check valve after after one or both of the heaters so the backflow of hot water from one heater does not turn the other off.
2. Keep one tankless heater, change the other to a tank heater. This idea is that this would get hot water to the fixtures faster but keep some of the efficiency of on-demand.
3. Go back to 2 tank heaters. Ouch.
Any advice on which one I should do?
