Propane is the alternative fuel that’s added to a diesel or gasoline engine in a product from LP Energy Systems, a small firm in La Conner, Wash. The device, called simply the Dual Fuel System, ...

The Propane Education & Research Council (PERC) is now offering three courses designed to help commercial builders, contractors and facility managers learn more about the benefits of propane systems.

BIG SKY, MONT. — For Marc Montanus and his wife, geothermal was ideal when deciding what type of HVAC system would be most efficient for their new, radiant heated mountain home in Big Sky, Mont. The ...