How to Install a Solar-Powered Water Heater | This Old House

Harnessing the sun's power with This Old House plumbing and heating expert Richard Trethewey and plumbing and heating contractor Bob Dudley. (See below for a shopping list and tools.)

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Richard and a local HVAC contractor helped a homeowner reduce his energy costs by installing a solar thermal water heating system. The system includes two solar collectors that are mounted on the roof. Antifreeze is pumped between the roof collectors and a heat exchanger coil inside the water storage tank. The tank also has a gas-fired burner that will heat the water when there is not enough sunlight.

Tools List for Installing a Solar-Powered Water Heater:
Tubing cutter
Roofing spade
Reciprocating saw
Adjustable wrench
Crescent wrench
Pliers
Impact driver
Propane torch

Shopping List:
Solar collector system
Roof shingles
Copper pipe and assorted fittings
Lead-free solder and flux
Emery cloth
Teflon tape

The solar thermal water heating system was manufactured by Velux America, Inc. [https://www.veluxusa.com/]

Installation support was provided by Harris-Dudley Co. Plumbing & Heating [https://www.harrisdudley.net/]

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How to Install a Solar-Powered Water Heater | This Old House
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