Water Heater Vent Hood Sheet Metal Screws

Residential size water heaters have usually 3 or 4 diameter draft hoods some accept both sizes.

Water heater vent hood sheet metal screws.

While installing the vent pipe over the draft hood you must secure the connection with the sheet metal screw. Make sure to have the vent pipe rise vertically at least 12 before installing the elbow. Seal joint at bottom of vent pipe increaser 4 inch vent pipe 3 inch draft hood when two vent pipes are made by different manufacturers they may not fit together. Only use the draft hood that is supplied with the water heater.

Some adjustments might be needed as long as the original size and shape are kept. Draft hood and gas water heater vent pipe connections. Do not use regular duct tape to secure or seal connections. Cut the pipe to the appropriate length with sheet metal shears.

Water heater draft hood s diameter depends on the size btu s of the appliance. Look to see if the draft hood over the vent hole is centered and if the legs are straight and secured by screws this may depend on the design of the pipe. Measure a straight section of new galvanized vent pipe to rise as. Some building inspectors don t even allow aluminum tape on joints.

Attach the vent pipe to the draft hood using the sheet metal self tapping screws. The collar of the draft hood will have a profile that allows for different diameter vent pipes installation picture. Fasten the flue pipe and fittings together with sheet metal screws. Check the installation manual for the recommended diameter vent pipe for your new heater.

Using the flexible gas hose connect the gas control valve on the water heater and the gas supply line. Place furnace tape around the joints to ensure tight seals. Check to see if the draft hood and water heated flue pipe connections are properly secured with sheet metal screws. Snap the new draft hood onto the water heater and secure it with sheet metal screws.

A draft hood must only be connected to an equal or larger sized vent pipe as allowed by code. The connection between the draft hood and the vent pipe should be secured with sheet metal screws three per connection on a single wall pipe are recommended. Water heater inspection draft hood. Use three screws per joint.

If the recommended vent pipe diameter is larger than the vent hood opening don t install a reducer. Even if you don t face a fire hazard a single wall vent might for some heaters be too cold and thus the heater might not vent properly in some climates locations.