This drawing is to demonstrate a simple and inexpensive method of taking heat from one building to another or to protect underground pipes from freezing, by using 4" flexible corrugated drain pipe for a conduit.
BOTH OF THESE METHODS ARE SUPERIOR TO THE EXPENSIVE INSULATED PIPES
OFFERED BY SOME WOOD BOILER MANUFACTURERS
THIS METHOD ALLOWS YOU TO REPLACE LINES OR WIRES WITHOUT DIGGING
OR COVER THE CORRUGATED PIPE WITH RIGID SPRAY FOAM IN THE DITCH.
YOU CAN SPRAY THE PIPE YOURSELF WITH RIGID SPRAY FOAM IN THE DITCH.
Better Energy Store Spray Urethane Foam, Do it Yourself, Made Easy
Spray Foam is a Do It Yourself, Spray in Place Urethane Foam. The use of Bio, renewable energy allows you to use renewable energy. Urethane Foam with a hard skin, soft middle spray urethane foam with more insulation dollar per inch. http://www.betterenergystore.com/ or; Call David at 718.813.4422 E-mail: email@example.com