Apollo Heating & Ventilating, established in 1980, has been installing custom-designed heating and cooling systems homes in St. Paul, Minn., and the surrounding communities. Its services include installing furnaces and air conditioners, humidifiers, air cleaners, set-back thermostats, heat pumps, low voltage control systems, custom sheet metal work and ventilation and makeup systems. With factory-trained and certified service technicians and sales engineers, Apollo carries a complete line of quality equipment and parts from manufacturers such as Carrier, Lennox, Honeywell, Aprilaire, SpaceGard, Venmar and Radiant Floor Heating Systems. It has been installing radiant floor heating for more than 12 years using products including Wirsbo s Pex Tubing, Northern Radiant Floors, Lennox, Lochinvar and Dunvirk Boilers, Honeywell, Tekmar, and Erie Controls. It is a member of the Radiant Panel Association. Apollo Heating & Ventilating is open Tuesday through Friday, and provides a 24-hour emergency service.