On this page you can choose from any of the different variants of Hayward-branded vent adapter kits for use with Hayward's Universal H-series Low NOx gas heaters. Note that most regulations call for double wall stainless steel vent pipe when going through a sidewall with combustible materials.
These vent kits contain the adapters only, and must be used with Z-Flex, Heatfab or DuraVent vent pipe sold separately.
Use positive pressure vent adapters with heaters that are power vented, when going through a side wall of your home or building. Use negative pressure vent adapters with heaters that are naturally drafted, vertically through roof.
Be aware there is a significant risk of carbon monoxide poisoning after the unit is installed by anyone without proper training. Please contact your installer for more information.