Quote:
Originally Posted by strider3700
The new tank came on for 5 minutes at 3:19 and again at 7:53 so 4 and a half hours apart.
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If I recall properly, your heater is in an unheated basement. As the cold season progresses, it will probably cycle more often.
As I calculate it, your DWH is cycling 5.3 times per day, and since it holds 501 pounds of water, and it is raising that water 4 degrees F every cycle, you are losing 2004 BTU per cycle or 10,687 BTU per day into your unheated basement.
If you re-located the DWH to being inside the house's heated envelope, the delta T would be lower, so cycles would be much reduced, and what heat you did lose would be heating the living space.
Just a thought...
-AC