I have a 50Gal hot water heater under my house serving 2 bathrooms and four people. I am looking for a safe way to prolong the availability of hot water when two or three people take a shower in a row. I was thinking about putting an inline water heater before the 50gal tank heater. I don't want to buy a big inline heater, as it's just going to be for stretching out the hot water available during a 40 minute period. The problem I see is the max flow through the inline unit will be too small. Do they make inline units that will flow at arbitrary rates, and just heat the water less when flowing fast? This would be ideal for me. Otherwise, could I split the flow (in parallel) going into the tank water heater: half through the inline unit, and 2) half through some restrictor valve to even the bias?
- posted
17 years ago