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jeff5may
Forum:
Solar Heating
12-30-20, 11:44 PM
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Drain-back system and evacuated tubes
Views:
22,311
Posted By
jeff5may
Sorry, got busy living. As correctly speculated,...
Sorry, got busy living. As correctly speculated, the main concern relates to loss of power/pump events. Some e-tube collector models are designed and tested to withstand the 150 degC stagnation...
Forum:
Solar Heating
09-21-20, 12:33 PM
Replies:
16
Drain-back system and evacuated tubes
Views:
22,311
Posted By
jeff5may
Drain back is not generally recommended with...
Drain back is not generally recommended with evacuated tube collectors. Mainly two reasons:
First, stagnation temperature can literally melt down gasket and sealing materials. When the sun shines...
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