Can I install an electric tankless hot water heater by myself?

While it is possible to install your own tankless water heater, it’s not a job for inexperienced do-it-yourselfers. There are a number of different sizes and styles of tankless water heaters, including propane, natural gas and electric, along with single-room or whole-house sized models.

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.

How much clearance does an electric tankless water heater need?

If the unit is vented to the outside then it needs 12 inches of clearance from a door or window. If the window does not open, the tankless water heater clearance from a window requires a 12-inch setback. Tankless water heaters should not be installed near dryer vents or intake air vents.

Does an electric tankless water heater require venting?

Tankless hot water heaters require special venting to blow hot exhaust gas outside, where it dissipates. Unlike traditional tank-style water heaters, gas tankless hot water heaters offer far more versatile venting options.

Does a tankless water heater need a GFCI breaker?

Most tankless water heaters are placed outdoors. The attachment plug serves as the disconnect and the receptacle shall be protected by GFCI. If there’s a new circuit that serves only exterior receptacles, no AFCI is required. If the receptacle is added to a circuit, there’s most likely a requirement for AFCI.

Is 200 amp service enough for tankless water heater?





A 200-amp service allows operation of multiple appliances at once, while a 60-amp service won’t provide enough power to run an electric hot water heater, air conditioner and hair dryer simultaneously. The EcoSmart Eco-18 model requires two 40-amp breakers for installation and has a 75-amp draw.

Does a tankless water heater have to be installed on an exterior wall?

It is possible to install a tankless water heater outside and free up indoor space. The roof or side wall can be used as a vent for the tankless water heaters. Venting through the roof is required for traditional gas tank water heaters.

Can you use PVC to vent a 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.

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 require 220?



Requirements for electric tankless water heaters:
If you plan to purchase an electric tankless water heater, consider these electrical requirements: Voltage — Many retailers sell units that will accommodate 110V, 120V, 208V, 220V, 240V, and 277V.

Do electric tankless water heaters use 110 or 220?

Tankless heaters come in all different sizes. There are small water heater units, designed for point-of-use that only draw 110 volts, and more powerful units which can heat enough hot water for an entire household.

Does an electric water heater use 110 or 220?

Most electric hot water heaters operate on 220 to 250 volts AC. This voltage in homes requires a double circuit breaker rated for the amperage draw of the hot water heaters.

Do they make 120V tankless water heaters?



EcoSmart Tankless
A popular choice is the EcoSmart POU 3.5 Tankless Water Heater. It has a temperature read out and power button on the front panel so you can easily see the output temperature. The 3500 Watt unit is streamlined and doesn’t require much space (11″ x 7″ x 2.75″), and it’s rated for 120V.

Do they make 110 volt tankless water heaters?

MAREY 2.0 GPM Electric Tankless Water Heater – 4.4 kW 110-Volt PP110.