GSW Power Direct Vent Tankless Natural Gas Water Heater

Tankless water heaters operate differently than traditional water heaters as they only heat water when it is required instead of storing it. Condensing tankless water heaters use a secondary heat exchanger that uses exhaust to pre-heat the incoming water before it reaches the primary heat exchanger, which results in higher efficiencies. This condensing tankless water heater is state-of-the-art with a uniform energy factor of 0.95. This water heater features: a power direct vent design; the primary heat exchanger is constructed of commercial grade copper, which is more resilient against corrosion; a secondary heat exchanger made of tyle 316 L stainless steel to protect against corrosion; flexible venting options including ULC S636 approved PVC, CPVC, polypropylene pipe, or category III/IV stainless steel venting can be used; internal freeze protection, and multiple safety features; it can be used in residential hydronic heating applications; takes up significantly less space than a tank-type water heater; and electronic ignition means there is no pilot light.

• Model #: GSWT-540H-N
• Solution for endless hot water
• Condensing technology
• Durable heat exchanger use HES35 copper for primary heat exchanger and stainless steel #316L for secondary heater exchanger
• Approved with ULC s636 PVC or CPVC or polypropylene venting in addition to Cat. IV stainless steel
• Vent with 3" (up to 70') or 4" (up to 100')
• 0" clearance to combustibles
• Integrated control and diagnostics
• Air fuel ratio (AFR) sensor
• Factory installed power cord
• Dual internal freeze protection system
• High altitude installations up to 10,000'

• Energy factor: 0.95
• Continuous maximum flow rates up to 10.0 GPM at 30°F temperature rise, 5.4 GPM at 70°F temperature rise
• Input maximum: 199,000 BTUs/hr
• Input minimum: 15,000 BTUs/hr
• Water connections: 3/4" NPT

• 15 year heat exchanger
• 5 year parts

• 22.5" H x 17.75" W x 10.75" D

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If you are not completely satisfied with your purchase, in most cases, you can return it for a refund within 90 days.

Lumber, Building Materials, Furniture and Major Appliances return policies are subject to your local store.

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