Can you install a tankless water heater anywhere?

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.

Do tankless water heaters need a return line?

If your home does not have a dedicated return line, select Rinnai tankless water heaters can offer faster hot water without adding an additional cold return line. This technology allows for the simple installation of a thermal bypass valve at the fixture farthest away from the water heater.

Can tankless water heaters be used in cold climates?

Yes, gas tankless water heaters can work well, even in cold climates, as long as the unit has been sized correctly to meet the hot water needs of your particular household.

How do you plumb a tankless hot water heater?

Quote from Youtube video: Line cut the hole for the vent pipe with a hole saw and connect the pvc or plastic vent pipes using approved cleaner and glue. Apply it to both the outside of the pipe. And the inside of the fitting.

Where should tankless water heater not be installed?

You should avoid installing your tankless water heater in a location prone to excessive humidity, moisture, or dust, or in an area where it may be splashed with water or other liquids. Do NOT install under water pipes or air conditioning lines that might leak or condense moisture that could then drip onto the heater.

Where should tankless water heaters be installed?

The ideal location for your water heater is inside the home. Most installations are small and unobtrusive so they will easily fit in a pantry, under the stairs, or under your sink. If you must place the water heater outside, make sure it’s safe from direct sunlight, rain, and insects.

Do tankless water heaters need dedicated gas line?

Tankless water heaters provide hot water on-demand. Gas units require a gas line, adequate combustion air, a vent to remove combustion gas and an electrical outlet to power the unit. While they last longer than tank-style water heaters, they are more costly to install and often require upgrading your gas line.

Does a tankless water heater need a recirculation pump?

Tankless heaters with recirculation pumps: The cost is $250 to $415 more than those without pumps. This is the best choice if you’re installing a new water heater. It saves the cost of pump installation. Separate recirculation pumps: If you have a tankless unit without a pump, one can be installed.

Does tankless water heater work with recirculation pump?

Quote from the video:
Quote from Youtube video: When the pump is activated it circulates hot water from the water heater. And returns the cold water that would normally run down the drain.

What size breaker do I need for a tankless water heater?

A gas tankless water heater only needs a 15-amp, 120 volt dedicated single-pole breaker for this purpose.

What size gas line do I need 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.

Can I use existing vent for tankless water heater?

Tankless units require 1/2″ or 3/4″ water lines and 3/4″ gas lines. Keep in mind that the new tankless heater cannot be connected to the existing exhaust pipe from your old heater. All tankless direct vent heaters require a stand-alone intake/exhaust system.

Can I vent my tankless water heater with PVC?

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 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.

Can you vent a tankless water heater in the attic?

Because direct-vent units use outdoor air, they can be placed in smaller spaces, such as an attic, closet or small mechanical room.

How do I insulate my tankless water heater in my attic?

Quote from the video:
Quote from Youtube video: You can purchase an insulating jacket for an electric water heater. Following the directions that come with it wrap the jacket around the water heater and secure it in place with the tape supplied.

Can a tankless water heater be installed in the garage?

As long as enough combustion air is provided, tankless water heaters can be installed in place of your old water heater or anywhere in your home. This includes utility rooms, garages, basements, attics, or mounted on outside walls.

Can you use galvanized vent pipe for tankless water heater?

The vent pipe must be made of stainless steel designed for venting corrosive gases. The standard galvanized vent from your old storage tank heater would quickly rust away if your tankless heater vented through it.