You gonna heat that tank tonight?
In the last two days, the high temperature has been 37 degrees. When the cold front blew in, I initially covered tank top with cardboard that got moved by wind and spilled out 5G of water with water surface exposed to 30 mph winds at 30 degrees. This was at 10PM. I added 78 degree water from tanks inside and left the Gale on my north porch to go to bed. The next morning at 4:30AM, water temperature was
53 degrees and air temperature was 26 degrees.
During the daylight on Monday, I properly wrapped up top of tank. Two heat inputs into tank are 300W
resistive heater set at 69 degrees & geothermal loop using 77.1 degree ground water from 1000’ at a flow rate of 2L/minute.
This morning at 0445 hrs, the outside temperature is 25 degrees with water at 59 degrees. The tang is grazing & behaving normal with no signs of stress.