Ventilating apparatus and installations in the nature of ventilation goods; steam and hydronic heating and heating installations; refrigerating apparatus in the nature of refrigerators and refrigerating installations; electric and hydronic fan heathers; temperature responsive control apparatus in the nature of thermostatic valves for central heating radiators; water cassettes being component parts of heating or cooling installations; chilling refrigerators; automatic temperature regulators for central heating radiators; dehumidifiers; fan coil units being parts of cooling and heating installations; coils as parts of distilling, heating or cooling installations; air filters for air conditioning units; heat pumps; sectional radiators; electric radiant heaters; convectors as radiators; water coolers; water coolers and heaters; heat recovery units in the nature of ventilators; rooftop air conditioners; ventilation terminals in the nature of ventilation exhaust fans; hydronic heating and cooling system for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, control panel switches, and electrical wire, all sold as unit; electric and hydronic convector heaters; air handling units for cooling, heating and ventilating domestic and commercial buildings; fans for air conditioning apparatus
Environmental Control Apparatus