Solar Air Heating Repair by Zak | Sep 15, 2011 | Building Science Research, Cost Reducing, Home, Home Energy, Renewable Energy, Renewable Energy Research, Solar Site AssessmentWe were called by a client who had a solar air heating system that had been in operation since the 80’s. They had enjoyed the “free heat” for so many years, but after 30 years, the system needed some maintenance. The homeowner said that...