Do y'all recommend a Drain Back system for pre-heat that incorporates a propane water heater? If so, did you build your own:
1. Drain Back Tank
2. Heat Exchange Coil
3. Collector Panel
Did you use a pump to push water through the collector and into the Drain Back tank?
1. Drain Back Tank
2. Heat Exchange Coil
3. Collector Panel
Did you use a pump to push water through the collector and into the Drain Back tank?
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