WebMar 22, 2024 · You should not need to have stainless steel venting as the "H" heater is not 90% efficient and therefore not a "condensing" heater. You should follow all recommendations in the venting instructions including openings in your enclosure for combustion and ventilation free air. It looks like the vent sizing for an H350 is 9", not 8". WebHayward Indoor Vent Adapter Kit Details: For use with Hayward Universal H-Series Low NOx H400FD gas heaters; Negative Pressure; Vertical Venting; 6” vent stack; Have …
Hayward Heater Universal H-Series Low NOx H150FD, …
WebThe Hayward UHXNEGVT14001 Universal H-Series Heater Indoor Vent Adapter Kit is for Negative Pressure, Vertical Venting for H400FD Heater Indoor Installations. When installing a pool and spa heater indoors, … WebHayward 6" Venting Kit for H150-H250FD Heaters When installing a pool and spa heater indoors, proper ventilation is a necessity. This Hayward Indoor Venting Kit is designed for use with a Hayward Universal H … dialog.show 报错
H250FD Indoor Vent Adapter Kit - Negative Vertical Venting
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