Eccotemp 45H Outdoor 6.8 GPM Natural Gas Tankless Water Heater


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The Eccotemp 45H Outdoor Natural Gas Tankless Water Heater is one of the most advanced CSA approved outdoor models of the Eccotemp tankless line. Rated at an impressive 6.8 GPM with a temperature rise of 38 degrees and 140,000 BTU per hour, the Eccotemp 45H-NG can meet all your hot-water needs! Eccotemp’s advanced 0.7 GPM low flow ignition technology allows users to enjoy endless hot water without experiencing cold spots. We recommend the Eccotemp 45H-NG for standard size single family homes, apartments, condos, cabins, as well as smaller commercial applications. Using 2-3 hot water applications simultaneously is a breeze with the Eccotemp 45H-NG. With our upgraded PCB (Product Control Board) performance and an all-new gas modulating valve, consumers can experience best in class temperature performance with a price anyone can afford. The compact, wall mounted Eccotemp 45H-NG has a 110/120-volt UL listed power cord that powers the internal Exhaust Fan, Anti-Freeze Protection, Digital Display and PCB. With its fully automated control system, the Eccotemp 45H-NG only pulls about .67 amps during operation, making it an ideal for low energy consumption and efficiency. The Eccotemp 45H has been CSA tested and approved for US & Canadian use at elevations up to 2000 feet. Installation and use of the Eccotemp 45H above 2000 feet may affect overall product efficiency and performance. Installation and use of the Eccotemp 45H above 5000 feet is not recommended. IMPORTANT NOTE: Cannot be used for HYDRONIC SYSTEMS, RECIRCULATING, or FLOOR HEATING.

  • 3/4 inch water inlet & outlet
  • 3/4 inch gas inlet
  • 35 degree rise: 6.8 GPM
  • 50 degree rise: 5.0 GPM
  • 70 degree rise: 3.4 GPM
  • CSA certified for US and Canadian use
  • Hot water capacity range: .8 – 6.8 GPM
  • Activation Flow .8 GPM
  • Natural Gas Powered
  • Digital remote with simple controls and diagnostics
  • 110 volt UL listed power cord
  • Energy Factor: 0.80
  • 10 year warranty on heat exchanger
  • 5 year warranty on parts
  • Maximum / Minimum gas rate: 19,800 – 140,000 BTUs
  • Product dimensions & weight: 15″”x6.5″”x26″” & 38lbs.”
Assembled Size
15″ x 7″ x 27.5″
Shipping Info
Standard – 4 to 10 business days
Ship Info

  • Delivery is not available to Puerto Rico

10 year warranty on heat exchanger, 5 year warranty on parts

Component country
Assembled country


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