Tankless Water Heaters

Condensing Tankless Gas Water Heater

Tankless water heaters operate differently than traditional heaters as they only heat water when it is needed instead of storing it. Condensing tankless heaters use a secondary heat exchanger that uses exhaust to pre-heat the water before it reaches the primary exchanger resulting in higher efficiencies. The GSW powered by Takagi condensing tankless water heaters are state-of-the-art and are ENERGY STAR® Qualified with an Energy Factor of 0.95.

Product Features

  • Power direct vent design
  • Primary heat exchanger is constructed of commercial-grade copper which is more resilient against erosion
  • Secondary heat exchanger is made of Type 316L Stainless Steel to protect against corrosion
  • Flexible venting as ULC S636 approved PVC, CPVC, polypropylene pipe or Category III/IV stainless steel venting can be used
  • Internal freeze protection and multiple safety features
  • Can be used in residential hydronic heating applications
  • Takes up significantly less space than a tank-type water heater
  • Electronic ignition means there is no pilot light
  • Industry-leading 15-year heat exchanger warranty when used in residential applications
  • Save money on energy costs since there is no standby heat loss



Do you have questions we can help answer?