Forum Discussion
MEXICOWANDERER
Nov 21, 2017Explorer
I am considering a tankless water heater for this concrete and more concrete...
DERATING...
The heaters are rated on gallons per minute...
But it depends
On incoming versus outgoing temperature differential. A 40 degree incoming water difference can make a stunning difference in output capacity.
Mixing it's heated water product with 45F water is a lot different than mixing it's heated water with 75F incoming water.
The greater the temperature differential of one or both
Can make or break a heater size selection
Use wisdom. Check dozen times, then buy with confidence.
Ninety percent of the yowls I have heard come from folks who greatly undersized the capacity of their heater.
DERATING...
The heaters are rated on gallons per minute...
But it depends
On incoming versus outgoing temperature differential. A 40 degree incoming water difference can make a stunning difference in output capacity.
Mixing it's heated water product with 45F water is a lot different than mixing it's heated water with 75F incoming water.
The greater the temperature differential of one or both
Can make or break a heater size selection
Use wisdom. Check dozen times, then buy with confidence.
Ninety percent of the yowls I have heard come from folks who greatly undersized the capacity of their heater.
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