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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.

Key Features:

  • 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

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