I m not an engineer but know attics are hot basements are cool.
Building hot air solar panel.
Desert dwellers do the opposite.
Making a solar hot air collector out of free used 2 x 4 metal light fixtures free old glass and free black paint to reduce our carbon body tape outline reduce our untility bills and save money.
Use a small 5 12 volt solar panel to power a computer fan to pull air through or natural convection like an oven where hot air rises from the bottom intake hole to the top outtake hole.
Solar hot air systems actively produce heat only in the daytime but some of that heat is absorbed by the building s thermal mass.
At night the heat stored.
Drywall tile framing lumber etc.
Producing up to 4 100 btus and priced at 379 97 this panel is the lowest cost practical solution to going solar of any system on the market.
Homemade solar heating system 1.
Jean ma sunmate solar panels are a great way to save on your heating bill i ve had 2 panels on my house for 12 years now.
To improve efficiency most solar hot air collectors have a black metal baffle or screen behind the glass that allows air flow on both sides.
A solar hot air collector usually includes a hot air duct connection at the top and a return air duct connection at the bottom.
The above diagram indicates the basic concept of a solar air heater and while there are many designs the basic principle is the same a small fan feeds interior air into a south facing wall mounted panel.
On real cool mornings my panel fans kick on around 7 30am and they remain on until roughly 4 00pm heating the first floor of my house throughout the day maintaining between 70 75 even when the temperature is in the.
Photo by don r.
Build an inexpensive solar heating system the author s 240 square foot 30 solar collector is simple and effective.