The existing vent system must be ul listed type b double wall or single wall metal vent pipe of either 3 inch or 4 inch diameter and installed according to the vent manufacturer s instructions and the terms of its listing.
Water heater vent pipe types.
Shop grainger for rugged gas pipe fittings.
Do not use other materials such as dryer vent hose.
It can provide an aesthetic installation with a single wall or roof penetration.
These vent pipe kits include storm collar kits vent adapters connectors and elbows.
Water heater ducts may lead directly outdoors or they may tie into a larger vent duct that also serves a gas or propane furnace or boiler in the home.
Draft hood and gas water.
Gas vent pipe from grainger manufactured by reliable companies like ameri vent and bosch comes in lengths of up to 4 l.
There are two common natural draft gas water heater vent pipe systems.
Water heater vent pipe draft hood.
On top of natural draft gas water heater in its center section right above the water heater vent you should.
Concentric venting may be used with several types of water heaters including direct vent power direct vent and tankless water heaters.
The duct may be metal or plastic depending on the type of vent system.
The three main water heater vent types that are used to handle flue gasses in residential water heater installations are power vent direct vent and atmospheric.
The water heater vent type needed for your water heater will depend on both the location of the unit and the model of the water heater.