Quote:
Originally Posted by iamgeo
After reading the specs on their website, I would have to say that it does "sense" the incoming water temperature.
TYPE GAL PER MIN. MODEL NUMBER ENERGY
FACTOR ENERGY STARŪ
Indoor Direct Vent
6.4 gpm at 35° F rise
5.6 gpm at 45° F rise
RTG-64DVN
Outdoor
6.4 gpm at 35° F rise
5.6 gpm at 45° F rise
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Data similar to this is available for all tankless water heaters. It is meant to suggest the capacity of the unit.
There is nothing in these numbers that indicates that the unit has the ability to sense incoming or outgoing water temperature.
If you want to use this unit for solar in the future, it is in your interest that you find out for sure that this model will actually function for solar applications.
It is your money you are about to spend.
-AC_Hacker