Exclusive: insider’s guide to venting gas water heaters into attics safely

The question of whether a gas water heater can be vented into the attic is a common one. The answer is usually yes, but there are a few important considerations to keep in mind.

Benefits of Venting Gas Water Heaters into Attic

• Improved efficiency: Venting the water heater into the attic can help to improve its efficiency by reducing the amount of heat that is lost through the walls and roof.
• Reduced risk of carbon monoxide poisoning: Carbon monoxide is a deadly gas that can be produced by gas water heaters. Venting the water heater into the attic can help to reduce the risk of carbon monoxide poisoning by allowing the gas to escape safely.
• Increased lifespan: Venting the water heater into the attic can help to extend its lifespan by preventing the accumulation of moisture and corrosion.

Considerations for Venting Gas Water Heaters into Attic

• Type of water heater: Not all gas water heaters can be vented into the attic. Direct-vent water heaters are designed to be vented horizontally through a wall, while atmospheric water heaters are designed to be vented vertically through the roof.
• Attic space: The attic must have enough space to accommodate the water heater and its venting system. The venting system must also be properly installed to ensure that it does not create a fire hazard.
• Local codes: Local building codes may restrict the venting of gas water heaters into attics. It is important to check with your local building department before installing a gas water heater in the attic.

How to Vent a Gas Water Heater into Attic

If you decide to vent your gas water heater into the attic, it is important to follow the manufacturer’s instructions carefully. The following steps will provide a general overview of the process:

1. Choose the right location: The water heater should be located in a well-ventilated area of the attic. The venting system should be as short as possible and should not have any sharp bends or restrictions.
2. Install the water heater: Follow the manufacturer’s instructions for installing the water heater. Be sure to use all of the required parts and materials.
3. Install the venting system: The venting system should be installed according to the manufacturer’s instructions. Be sure to use all of the required parts and materials.
4. Test the venting system: Once the venting system is installed, it is important to test it to make sure that it is working properly. You can do this by lighting a match or candle and holding it near the vent pipe. The flame should be drawn into the vent pipe.

Alternatives to Venting Gas Water Heaters into Attic

If you are unable to vent your gas water heater into the attic, there are a few other options available.

• Vent the water heater through a wall: This is a good option if you have a wall that is adjacent to the attic.
• Use a power vent: A power vent is a fan that helps to exhaust the combustion gases from the water heater. This can be a good option if you do not have enough attic space to vent the water heater vertically.
• Install a tankless water heater: Tankless water heaters do not require any venting. This can be a good option if you are looking for a more efficient and space-saving water heater.

Final Note: Gas Water Heaters and Attic Venting

Venting a gas water heater into the attic can be a good way to improve its efficiency, reduce the risk of carbon monoxide poisoning, and extend its lifespan. However, it is important to consider the type of water heater, the attic space, and local building codes before making a decision.

Questions You May Have

Can I vent my gas water heater into the attic if I have a cathedral ceiling?

Yes, you can vent your gas water heater into the attic if you have a cathedral ceiling. However, you will need to use a power vent to ensure that the combustion gases are properly exhausted.

How often should I have my gas water heater inspected?

It is important to have your gas water heater inspected annually by a qualified technician. This will help to ensure that the water heater is operating safely and efficiently.

What are the signs of a faulty gas water heater?

Some of the signs of a faulty gas water heater include:

• Leaking water
• Rust or corrosion
• Strange noises
• Reduced water pressure