Rheem RTG-66X Outdoor Gas Tankless Water Heater - 11,000 - 180,000 BTU max

RTG-66X Outdoor Gas Tankless Model

With inputs ranging from 11,000 BTU/hour to 180,000 BTU/hour, the RTG-66X is capable of delivering hot water at a continual flow rate of 6.6 gallons per minute (GPM) when the temperature differential from cold to hot is 45°F. At a lower temperature rise of 35°F, it will deliver 8.4 GPM; and at a 60°F rise, 5.0 GPM.

Measuring only 23-5/8 inches high, 13-7/8 inches wide, and 8-7/8 inches deep, the petite RTG-66X takes up no more space than a standard medicine cabinet. It also sports a sleek new exterior — an attractive dove gray cabinet with an upscale look that will complement any modern home décor.

The RTG-66X carries a 12-year warranty on the heat exchanger, five years on parts and one year on labor. Recessed installation boxes, insulated pipe coverings and a full line of accessories are available to support outdoor installation. With a shipping weight of 54 pounds, the RTG-66X is third-party-certified by the Gas Appliance Manufacturers Association to have a minimum Energy Factor of .82. Its annual operating cost with natural gas is $223; with LP gas, $374.

• Vents concentrically with 3/5" stainless steel venting from Metal Fab or Heat Fab
• UMC-117 remote control is included
• EZ-Link™ cable available for high demand applications to connect two tankless units to operate as one
• Guardian SBT™ sensing burner technology
• Guardian OFW™ overheat film wrap
• All Rheem models can be linked in up to 20 unit manifold installations by using the optional MIC-180 and MICS-180 manifold control assembly
• All Rheem tankless models are third-party efficiency certified by GAMA
• Continuous hot water, energy saving and compact, space saving design
• Intelligent electronic controls designed to increase energy efficiency and safety
• Self diagnostic program
• Digital display shows temperature setting and maintenance codes
• Built-in electric blower
• Uses Category III stainless steel vents and vent horizontally or vertically
• Supplied with a 120 volt power cord
• Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements
• Freeze protection to -30°F