Rheem Versa Spa Heaters Operating Instructions - Page 12

Indoor Installation Outdoor Installation Heater Side Top* (Drafthood) Vent Back Right Side Left Side Floor Min. Clearance from Combustible Surfaces 35" 6" 2" 6" 6" 0 Heater Side Min. Clearance from Combustible Surfaces Top* (Stackless Top) Back Right Side Left Side Unobstructed 2" 6" 6" *Clearance from Top of Vent Terminal Table C: Clearances from Combustible Construction *Clearance from Top of Vent Terminal Table B: Clearances from Combustible Construction For servicing, provide at least 24" in front of the heater for burner tray removal, and at least 18" on the left side of the heater to inspect and de-lime the heat exchanger. For servicing, provide at least 24" in front of the heater for burner tray removal, and at least 18" on the left side of the heater to inspect and de-lime the heat exchanger. Heaters must not be installed under an overhang of less than three (3) feet from the top of the heater. Three (3) sides must be open in the area under the overhang. Roof water drainage must be diverted away from the heaters installed under overhangs with the use of gutters. For U.S. installations, the point from where the flue products exit the heater must be a minimum of four (4) feet below, four (4) feet horizontally 4 foot Minimum 4 foot Minimum 3 foot Minimum 10 foot Minimum 4 foot Minimum 1 foot Minimum Forced Air Inlet U.S. Installation Only Fig. 4: Outdoor Installation 12