Dose anyone have guidelines for water heater EF based on age and steady state efficiency. How does EF compare to AFUE?
Andy
- posted
16 years ago
Water Heater Energy Factor
Loading thread data ...
- Vote on answer
- posted
16 years ago
Look at tankless Bosch, takagi and Rinnai EF is near AFUE and does not go down much with age, I would guess with tank 1-2% reduction a year, It depends on use and how hard your water is. Takagi makes a condensing tankless.