Venting Hot Water Heater Into Attic

Water heater ducts may lead directly outdoors or they may tie into a larger vent duct that also serves a gas or.

Venting hot water heater into attic.

All water heater venting systems use a vent duct or pipe also called a chimney or flue to bring exhaust gases from the water heater to the outdoors. When this occurs the water heater will not function. The selection of a tankless water heater is one of the most important decisions a homeowner makes to decrease utility expenses and lower energy consumption. Do not vent this water heater into the venting system of another gas appliance designed to vent under positive pressure.

To avoid these water heater outages proper attic ventilation must be present. Examples of common practices to insure sufficient attic ventilation include soffit vents used in combination with ridge vents and or mechanical attic exhaust fans which are turned on and off via temperature controls. The duct may be metal or plastic depending on the type of vent system. Once selected the venting of a gas tankless water heater will be the most important decision a tankless water heater installer makes when fitting a home or building.

After applying pipe thread tape to the mnpt nipples on your water heater thread the fnpt end of the water heater connector onto the tank and tighten with. Apollopex corrugated the 3 4 in. Other issue is the bathroom installation which isn t permitted as well unless the water heater closet is sealed from the bathroom area air tight doors and it has a separate fresh air supply from exterior or other areas of the house that can be used for this purpose. The water heater should be installed as close as practical to the venting system to minimize the vent connector length required.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Atmospheric venting refers to a system in which exhaust from the water heater naturally rises out of the appliance s combustion chamber then travels up through a standard chimney style flue. Refer to local codes for the distance limitations on vent connector lengths. Intake vents located at the lowest part of the roof under the eaves allow cool.