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Ron342 · 03-12-14, 07:06 AM

Hello HV and the rest of you scroungers!
I followed this thread while collecting parts for my own project but naught from HV for months????
My current thoughts are to run about 20 ft of 3/16" copper refrig tubing inside 20 ft of 3/4" copper tubing, then anneal the 3/4 so I can spiral bend it at maybe 30° around the outside (actual tank or just the cover?) Of my reborn 80 gal W/H. Then connect the bottom of the 3/4 to a T off the bottom tank drain and the top of it to a T at the top exit tap of the W/H and voila thermosiphon!!
The 3/16 would be the condenser of my 5K window unit sitting in the garage. (maryland coast) I figure a window unit might work better than a dehumidifier since they are designed to dump heat into 100° air?
I have a bunch of questions:
Do I need spacers inside the 3/4?
Is 3/16 too small and will the combo thermosiphon enough heat out of the condenser??
Why can't I just watch sports on Saturday like normal guys??
Later plans are for a similar tube in tube ground water coupled evaporator but this is the first bite and I've never even brazed HVAC lines.
Any thoughts??

03-12-14, 07:06 AM	#84
Ron342 Apprentice EcoRenovator Join Date: Feb 2010 Location: Maryland Posts: 120 Thanks: 26 Thanked 12 Times in 8 Posts	Rebirth of old window units and water heaters??? Hello HV and the rest of you scroungers! I followed this thread while collecting parts for my own project but naught from HV for months???? My current thoughts are to run about 20 ft of 3/16" copper refrig tubing inside 20 ft of 3/4" copper tubing, then anneal the 3/4 so I can spiral bend it at maybe 30° around the outside (actual tank or just the cover?) Of my reborn 80 gal W/H. Then connect the bottom of the 3/4 to a T off the bottom tank drain and the top of it to a T at the top exit tap of the W/H and voila thermosiphon!! The 3/16 would be the condenser of my 5K window unit sitting in the garage. (maryland coast) I figure a window unit might work better than a dehumidifier since they are designed to dump heat into 100° air? I have a bunch of questions: Do I need spacers inside the 3/4? Is 3/16 too small and will the combo thermosiphon enough heat out of the condenser?? Why can't I just watch sports on Saturday like normal guys?? Later plans are for a similar tube in tube ground water coupled evaporator but this is the first bite and I've never even brazed HVAC lines. Any thoughts??