Large drainback solar hot water project

ESharp · 10-21-13, 07:52 PM

I really liked the simplicity of Gary’s drainback system and the large low cost storage tank. I went with a 6’ long x 3.5’ wide x 4’ tall tank as that was the biggest I could reasonably fit in my mechanical room. It holds ~350 gallons. To maximize water space (and save a bit of money) I only used 1” of poly-iso to line the interior of the tank, regular fiberglass batt is between the 2x4 reinforcements on the exterior. Unfortunately I didn’t take any pictures during construction.

10-21-13, 07:52 PM	#1
ESharp Lurking Renovator Join Date: Apr 2012 Location: NS, Canada Posts: 21 Thanks: 1 Thanked 9 Times in 6 Posts	Tank I really liked the simplicity of Gary’s drainback system and the large low cost storage tank. I went with a 6’ long x 3.5’ wide x 4’ tall tank as that was the biggest I could reasonably fit in my mechanical room. It holds ~350 gallons. To maximize water space (and save a bit of money) I only used 1” of poly-iso to line the interior of the tank, regular fiberglass batt is between the 2x4 reinforcements on the exterior. Unfortunately I didn’t take any pictures during construction. Attached Thumbnails