Do I need a professional to install a tankless water heater?

Unless you are experienced and comfortable enough to solder pipe, make gas connections and following local codes, hire a licensed professional. You can also save yourself the hassle with our gas tankless water heater installation services.

How high off the ground should a tankless water heater be?

18 inches

Your gas water heater should be 18 inches off of the ground, as per the National Fuel Gas Code. This is the standard for water heater installation requirements.

How much does it cost to switch to tankless?

According to HomeAdvisor, tankless water heater costs range from $1,171 to $3,331, with the national average at $2,216. The overall cost of installing a tankless water heater varies depending on the type, brand, and flow rate.

Do you need a permit to install a water heater in California?

Getting a water heater permit is essential, required by California law, and can be obtained from your local building and safety planning office. The permit acts as a request for inspection and can help to give you guidance on the appropriate codes for your area, as well as the installation itself.

What size gas line is needed for a tankless water heater?


A typical tankless water heater will need a ¾-inch gas line. However, if there is sufficient pressure and the run length is short enough, a ½-inch line may be sufficient with certain tankless water heaters, such as the Noritz EZ Series.

Does a tankless water heater need a dedicated gas line?

Because tankless units heat water on demand they require higher BTUs (or they operate on high heat). This requires a greater ‘jolt’ of gas, and therefore, a minimum ¾” gas line. On the other hand, because tanks are constantly heating water (or they operate on low heat), they require a constant supply of gas.

How close can an outlet be to a tankless water heater?

Electrical outlet must be installed less than 6 feet from unit.

What are the requirements for installing a tankless water heater?

Quote from the video:
Quote from Youtube video: Support some models are designed to function with a 1/2 inch gas line in certain conditions. But many units require a 3/4 inch gas line to meet the demand of tankless water heating.

How far away can you install a tankless water heater?

Indoor Installations

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 install your own hot water heater?

Installing a water heater is no average DIY project. You must have plumbing, electrical, heating ventilating, and carpentry skills, know state and local building codes, obtain a permit for the work and arrange with your municipality for an inspection of the work.

Are tankless water heaters safe?

Aside from the concern about carbon monoxide, a tankless water heater is a very safe piece of equipment. Because there is no tank which can overheat or experience a massive spike in pressure, a tankless system doesn’t have the danger of bursting or exploding.

How close can a water heater be to the wall?

Water heaters must be surrounded by a certain amount of clearance, or air space, to function properly and safely. A clearance area of 12 inches is required on all sides of a hot water heater. A certain amount of airflow is also required for proper combustion and ventilation.

Can you put a gas tankless water heater 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.

Can you build a cabinet around a tankless water heater?

Tankless water heaters can be installed anywhere inside your home. You can even have a tankless water heater in a bathroom! Some families with larger homes choose to install two, one for each floor, for example. Because of their small size, they fit in closets, cabinets, pantries or laundry rooms.

Can a gas water heater be in a closet?

Installing a gas fired water heater in a closet is one of the options available when installing the appliance in a mobile home or a home without a basement or attached garage. It is a good option, a safe option, as long as certain building code requirements are met when installing the appliance.

Does a gas water heater need to be vented?

Venting. All natural gas water heaters must be vented to the outdoors to remove the byproducts of combustion. Atmospherically venting gas water heaters is the most common type of venting option used.

Does a gas water heater need a vented door?

If the water heater needs more air than is available in the room, you will need vents or a louvered door connected to another part of the house or the outdoors. In most cases, you will need two vents, one located within 12 inches of the ceiling and another within 12 inches of the floor.

Can a tankless water heater be in a bedroom?

No, you cannot put a gas water heater in a bedroom. A malfunction of the water heater or flue can allow carbon monoxide to flow into a bedroom and accumulate at a fatal level. It’s odorless, so you would be slowly asphyxiated while sleeping without knowing what was happening.

What is the downside of a tankless water heater?

The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters. Including installation, tankless water heaters cost 3 times more than tank-style water heaters on average.

What size tankless water heater is needed for a family of 4?

What Size Tankless Water Heater Do I Need For A Family Of 2, 3, 4, 5, Or 6?

Number Of Family Members: Gas Tankless Heater Size (GPM) Electric Tankless Heater Size (kW)
What size tankless water heater do I need for a family of 3? 7-9 GPM 15-23 kW
What size tankless water heater do I need for a family of 4? 8-10 GPM 20-28 kW