How to Make a Solar Heating System

Install the solar panel on your roof facing south. The solar panel should have a clear view of the sun for the longest possible of time during the day. Be careful to avoid shadows caused by buildings and tall trees.

Run a piece of tube from the solar panel through your house to your furnace unit. Cover the tubing with tubular insulation the entire length. It is especially important to cover any parts of the tube exposed to the outside air with insulation, as this where large amounts of heat can be lost before it can be distributed throughout the home.

Insert the heat exchanger in front of your furnace fan at the start of the ducting work. The heat exchanger should form an air-tight seal between your fan and the duct work.

Connect the tube running from the input of the solar panel to the water circulation pump then run a short piece of tubing from the pump to the output of the heat exchanger.

Fill the heat exchanger with the water-propylene glycol solution. Run the pump a little then refill the heat exchanger. Repeat running the pump and refilling the heat exchanger until solution starts coming out of the tube coming from the output of the solar panel.

Connect the tube running from the output of the solar panel to the input of the heat exchanger.

Connect the power controller on the water pump to the thermostat of the solar panel and the furnace fan motor. Once the solar panel gets warm enough, the water pump will kick on, circulating the water and the fan will start spreading the heat throughout the home.