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GSW GAS WATER PRODUCTS
BAP Heating offers the full range of GSW Gas Water Products.
Choosing the right residential gas water heater
Measure the space where the existing water heater now sits (including necessary plumbing, venting and gas connections) and note the existing tank size. Tank size and BTU input is key to ensuring plenty of hot water during peak usage. All sizes are presented in Litres and US Gallons. Click on type of water heater and tank size to chose the right water heater. 
Sizing Tips
Children or teens? Have you added a whirlpool, dishwasher, clothes washer or extra bathroom since you have moved in? If you answered YES, consider moving up to a larger tank capacity.
Water Heater Sizing Chart
Flame Guard®
GSW Flame Guard® hot water heater tank image GSW's Flame Guard Safety System reduces the risk of accidental fires involving flammable vapors from products such as gasoline, paint thinner, solvents, etc.
Envirosense™
GSW Envirosense™ hot water tank image The Envirosense™ line of water heaters contains a fully submerged, spiral-shaped condensing heat exchange that provides a much greater heat transfer surface than a standard straight flue tube, resulting in up to 96% thermal efficiency and higher hot water output.
Direct Vent
GSW Direct Vent hot water tank image Allows for a sealed combustion process to take place. Combustion air comes in from the outside and flue gases exit to the outside in a 2-pipe venting system. Ideal for tightly built new homes.
Power Direct Vent
GSW Power Direct Vent hot water tank image Allows for a sealed combustion process to take place. Combustion air comes in from the outside and flue gases exit to the outside in a 2-pipe venting system. Ideal for tightly built new homes.
SuperFlue™
GSW SuperFlue™ hot water heater tank image A built-in blower allows through-the-wall or through-the-roof venting up to 50 feet to the exterior of the home. Ideal for conversions from electric to gas water heater.
SuperFlue™ 75 Gallon
GSW SuperFlue™ 75 gallon hot water heater tank image A built-in blower allows through-the-wall or through-the-roof venting up to 50 feet to the exterior of the home. Ideal for conversions from electric to gas water heater.
Polaris™ High Efficiency
GSW Polaris™ hot water heater tank image Technology that blends water heating and residential space heating into a single, super-high efficiency water heating system.
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