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Quick Answer: How To Connect Tankless Water Heater

Can you install tankless water heater yourself?

Installation. 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.

Do tankless water heaters need special wiring?

You must utilize either a 120- or 240-volt circuit, wholly devoted to the heater. Both voltages require 8-gauge wire, and the section exposed to the area under the sink must be armored cable. If the manufacturer’s instructions call for a larger cable, the National Electrical Code says you must comply.

Where should a tankless water heater 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.

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.

Do tankless water heaters have to be installed outside?

Yes – there are outdoor tankless water heater units that are made to withstand the elements BUT – it is recommended that electric tankless water heaters be provided with some form of shelter.

How do you wire a tankless water heater to a breaker box?

Steps on Wiring Your Water Heater to Breaker Box Step 1: Shut off the primary sources. Step 2: Drain the excess water and depressurize. Step 3: Install the circuit breaker. Step 4: Run the wirings. Step 5: Wire in the circuit breaker. Step 6: Wire in the water heater. Step 7: Open the main pipe and fill the tank.

How long does it take to install a tankless water heater?

Additional time is required to install new power and water lines and air vents. Afterward, the tankless unit must also be mounted and connected. Tankless to Tankless Installation: This generally takes between one to three hours.

Are tankless water heaters hardwired?

It can be plugged into an outlet or wired directly to a service panel. An indoor, electric tankless water heater does not need to be vented to the outside. It does require 240-volt power. It may be plugged into a 240-volt outlet or directly wired to a service panel.

Do tankless water heaters require a neutral?

These appliances are sometimes designed so that they operate exclusively from a 240 volt supply (as all appliances do in many other parts of the world). In that case there’s no need for neutral. /3 cables have black, white, red and ground.

How many wires does a tankless water heater need?

Install 3 40-amp breakers in subpanel to supply each of three 240Volt #8 wires going to Tankless. Read nameplate on Tankless for watt rating. *Neutral wire is not needed if subpanel is NOT going to have 120volt breakers.

How close can a tankless water heater be to an electrical panel?

The only code requirements I’ve found regarding clearances around an electrical panel are allowing at least a 30″ working space (side to side).

Can tankless water heater go 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 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.

Is a GFCI outlet required for tankless water heater?

In a garage, every 120, 15 and 20 Amp receptacle outlet needs to be GFCI protected, so if you have a tankless water heater in the garage, it should be protected as well.

Why is my tankless water heater tripping the breaker?

Breaker Breaker There are three possible explanations for a breaker being tripped by a hot water heater: water dripping on the electrical lines, a problem with the unit’s thermostat or a problem with the breaker. A malfunctioning thermostat is the most common cause. In this case, the thermostat should be replaced.

What amp service do I need for a tankless water heater?

Electric tankless water heaters can have a power input from 10,000W (10 kW) to 40,000W (40 kW).How Many Amps Do 10-40 kW Electric Tankless Water Heaters Draw? Tankless Heater Size (in kW) Electrical Current (in Amps) 29 kW 121 amps 30 kW 125 amps 31 kW 129 amps 32 kW 133 amps.

Can you put an outdoor tankless water heater in a 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.

Does water heater wire need to be in conduit?

NO it does not have to be in Conduit… except in maybe ILLINOIS…lol… But it does have to be supported correctly and in a proper connector and so on.