domestic water heaters, commercial water heaters and swimming pool heaters, all utilizing solar energy

Domestic Water Heating Units, Swimming Pool Heaters, Air Heaters and Air Conditioners

SOLAR HOT WATER SYSTEM, COMPRISING MODULAR SOLAR HEAT COLLECTOR PANELS, A HOT WATER STORAGE CYLINDER INSULATED AND EQUIPPED WITH A THERMOSTATICALLY CONTROLLED ELECTRIC BOOSTER HEATER, AND ASSOCIATED PIPING

Water heaters, commercial water heaters, electric water heaters, gas water heaters, solar water heaters, [ heat pumps, ] heat pipes, heat exchangers, solar collectors and plumbing fittings