Gas Hot Water Heater Venting Requirements

How to know a gas water heater is venting safely.

Gas hot water heater venting requirements.

The venting system of the gas water heaters might consist of one or two pipes. Venting requirements for gas fueled water heaters. Gas water heater draft hoods come in different sizes and if you are replacing water heater make sure that the draft hood and the water heater vent pipe match each other. Allow water heater to run continuously for 10 minutes.

All water heaters that burn natural gas or liquid propane lp gas require a venting system. The first permit is for the water heater itself. The purpose of venting a gas or oil fired water heater is to completely remove all products of combustion and to vent gasses to the outside air without condensation in the vent or spillage at the draft hood except in cases of downdraft or poor stack conditions. The hot water tank is.

Smith power vent gas water heaters are equipped with an electric blower fan that is installed on top of the water heater which requires an electrical outlet to be close to the water heater. To test for proper water heater venting. If the draft hood that came with your water heater has a top opening diameter designed for 3 vent pipe and you have 4 vent pipe installed use an adapter increaser. Run enough hot water for the water heater start heating.

This is as easy as heading down to the local planning or building department to ask for one. 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. If water heater and a gas furnace share the same vent reduce the thermostat setting for the furnace so it does not run during the test. How much does a water heater permit cost.

For safety water heaters must be vented using a listed and approved venting system that provides adequate size height and draft. The blower pushes the exhaust and excess heat through the exhaust venting. When a residential gas fired water heater is installed in a closet the heater combustion gases must be vented to the outside of the residence and the fresh air needed for combustion. The process of burning of the gas is called combustion and it creates heat exhaust gases including highly poisonous carbon monoxide and moisture the water heater s ventilation system removes these byproducts from the home making it a critical safety feature.

The two pipe system might be further divided on the concentric pipe inside the pipe or two separate pipes and the vents can run horizontally vertically or combined.