The development of the first Hardy put the company at the forefront and made them pioneers in an entirely new field of heating.
The Hardy outside wood furnace is designed to save energy and provide comfortable heating.
Like most successful inventions, the basic idea is simple and the design is not complex. The Hardy uses a stainless steel tank filled with water surrounding a fire box.
It is a non-pressurized boiler with an atmospheric vent. Heat is delivered by circulating water through pipes between the furnace and a heat exchanger in the building.
It is equally efficient with a hot air duct system, water baseboard system, radiant floor heat, unit heaters or an existing hydronic system operating at 180 degrees or less. The Hardy can provide several hundred gallons of hot water for domestic household needs.