Can tankless water heater vent out of wall?

Tankless water heaters can vent through the roof or a side wall, creating more flexibility and options for placement. Traditional gas tank water heater require venting through the roof.

How far can a tankless water heater be vented?

A tankless water heater requires a 4-foot clearance from the side or below a door or window that opens, unless the unit is directly vented to the outside. If the water heater is installed above the door or window, it needs 12 inches of clearance.

Can you vent a tankless water heater horizontally?





Tankless water heaters can have their venting go either out a side wall with horizontal venting or up through the roof. Keeping the venting run as short as possible is both good for the heater and will help keep costs down.

Can I use PVC to vent my tankless water heater?

In most cases, PVC makes a great venting material. It’s the least expensive option and is easy to install. And it’s a good reason to consider a high-efficiency condensing unit.

What is the code for venting a tankless water heater?

The water heater must be vented in accordance with the section “Venting of Equipment” of the latest edition of the National Fuel Gas Code: ANSI Z223.

Does tankless water heater need to vent outside?

4. Outdoor tankless water heaters don’t need venting. In warmer climates, it’s easy to install a tankless water heater outdoors, with no additional venting required. Tankless units are designed to withstand below-freezing temperatures through self-warming capabilities that prevent freezing and cracking.

Can a tankless water heater be installed in a closet?





Your tankless water heater can be installed just about anywhere! Due to the small size of your water heater, it can be mounted in many small spaces, including closets, under sinks, in pantries, or under stair storage areas.

How hot does water heater vent pipe get?

The flue gas temperature will be around 160 F when the water heater is new if it is set to store water at 140 F. The flue gas temperatures can reach over 350 degrees F as scale builds up.

Can you vent tankless water heater with furnace?

The tankless heater cannot share vent piping with any other appliance, and it cannot use a masonry chimney flue for venting.

Can you vent a tankless water heater in the garage?

Electric tankless water heaters are designed to be installed indoors in the garage, basement, or interior wall. Both natural and propane gas tankless water heaters have indoor and outdoor models. Indoor models can also be installed in the garage, basement, or the exterior wall’s interior side to provide venting.

Does a tankless water heater need a sediment trap?



A drip leg/sediment trap is always required in the gas line piping serving the equipment. It’s designed to prevent rust or particles from entering the gas valve which could over time prevent the valve from sealing tightly when off.

Do tankless water heaters require a floor drain?

A tankless installed in a garage, outdoors, in a mechanical room with a floor drain, or unfinished basement, would not require one. However, those installed in interior closets, attics, utility rooms, or closets adjacent to finished spaces should always have one.

What is the difference between a drip leg and sediment trap?

Drip leg verses sediment trap



Plumbers and some inspectors will often use the terms interchangeably. However: Sediment traps are basically for the purposes of catching sediment and contaminates in a gas line. Drip legs are basically for catching condensate and moisture in a gas line.

Is a drip leg required for water heater?



Drip legs and sediment traps are a capped off section of gas line that is designed and installed to catch debris or moisture in the gas line to keep the system clean.

Are sediment traps necessary?

According to the 2016 California Plumbing Code (CPC), sediment traps are required for all gas appliances except: illuminating appliances, ranges, clothes dryers, decorative appliances for installation in vented fireplaces, gas fireplaces, and outdoor grills. Those are quite a few exceptions.

Where do you put gas drip legs?

Quote from the video:
Quote from Youtube video: So the key here when you're doing this is obviously you need to know where the gas is coming from and where it's going right. So in this case the furnace would be here and the gas supply of the meter