Solar air heating technology addresses one of the largest sources of building energy consumption: Indoor space and ventilation heating.

Conserval is the company that developed and commercialized Solar Air Heating for the commercial and industrial sector. The technology we invented, known as “SolarWall”, has been honored by the United States Department of Energy, Natural Resources Canada, and the American Society of Mechanical Engineers as being one of the best energy inventions.

SolarWall® systems are the most compelling active solar heating technology for commercial and industrial buildings. They are custom-designed for each and every project to complement the building design and integrate seamlessly with the heating and ventilation systems. We have helped thousands of clients achieve their climate change goals and reduce their carbon footprint with the SolarWall solar powered heater.

Savings on heating fuel consumption

GHG emissions reductions

Over 30+ years of project experience

Designed for energy and aesthetic objectives

Projects in 40+ countries

Highly acclaimed renewable technology

5 Million

of SolarWall® systems installed worldwide


Greenhouse emissions reduced annually


thermal of energy installed worldwide




temperature rise above ambient