The Hayward Universal H-Series Low Nox is designed specifically for either a positive-pressure or negative-pressure venting system, both have their own factors that determine which one is the best fit.
Negative is strictly for a vertical, straight up, or partially straight up venting system, where there is minimal condensation due to the heat lifting and rising up with the formation of the vent pipe.
The Universal H-Series is an energy efficient, high performance, and installation adaptable.
Fits the Hayward Universal H-Series Low Nox models W3/H200FDN and W3/H200FDP.
Please log in to write a review:
Enter your postal code to check your area.