SolarWall® systems use solar energy to heat ventilation air, save money, and provide clean carbon-free heating to beautiful & energy-savvy buildings around the world.

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 custom-designed for each project to complement the building design and integrate seamlessly with the heating & ventilation systems. We have helped thousands of clients in 40+ countries achieve their climate change goals, ESG targets and reduce their carbon footprint. Whether the goal is Net-Zero, Carbon-Zero or LEED® certification, or a building envelope upgrade, the SolarWall® air heating can help.

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