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= Overview =
*[http://weatherbase.com/ Weatherbase] - Has a large database of temperature and weather data that could be helpful in learning more about your heating and cooling demands<br>
*[http://practicallyoffthegrid.com/SAH%20Analysis%20of%20high%20efficiency%20solar%20air%20heater.pdf Report on Efficiency] - An investigation into the efficiency of solar air heaters in cold climates
= Estimated costs =
== Footnotes ==
[[Category:Built_environment]] [[Category:Green_living]] [[Category:Energy_conservation]] [[Category:International_development]] [[Category:Taking_action]] [[Category:Design]] [[Category:CMAS801]]