Your new GSW Envirosense water heater is equipped with a spiral-shaped, condensing heat exchanger, which provides a large heat transfer surface and results in 90-to96% thermal efficiency.
Equipped with a fully submerged spiral-shaped condensing heat exchanger that provides greater heat transfer surface.
Commercial-Grade Glass Lining with two Magnesium Anode rods provides superior protection against tank corrosion
Glass lining protects all water side tank surfaces plus inside of internal heat exchanger.
For more information about the GSW Envirosense PV/PDV Series Water Heaters, or for digital copies of the manufacturer's documentation, please visit Envirosene's website at