Readers ask: How To Wire A Baseboard Heater With Built In Thermostat?

Can you hook up all baseboard heaters to one wall mounted thermostat?

You must wire heaters in parallel, not series when using them with one thermostat. All heaters must be wired in parallel. You can either do that by connecting each heater to the thermostat directly, or by connecting each heater to the next — just be sure that each heater is connected to the source wires.

How is a baseboard heater wired?

Wiring baseboard heaters is as simple as adding a 20-amp circuit. Simply run a 12-2 non-metallic sheathed cable from the electrical service panel to the location of the baseboard heater. Since baseboard heaters have a built-in junction box, you won’t have to cut in a junction box to feed it.

Do baseboard heaters have built in thermostats?

Most heaters are controlled by a wall-mounted dial thermostat or a dial on the side of the baseboard itself. Thermostats mounted directly on the heaters can be slower to respond to changes in room temperature, and can be wildly inaccurate because of where they’re located.

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Can you wire a baseboard heater wrong?

Baseboard heaters must have their own thermostat, so you can’t connect them to a central heating system, but they should not be too expensive and can be well worth the extra investment. It may be wired at the wrong voltage so check the voltage of your baseboard heater and your supplying wires.

What size breaker do I need for a 1500 watt heater?

A 1500-watt heater on a 120-volt circuit thus needs a breaker of 15.6 amps. Because a 15-amp breaker would be too small, you need a breaker with the next highest rating, which is 20 amps.

Can I use a 4 wire thermostat on a 2 wire system?

Yes, you can connect a four wire thermostat to this setup.

Do you need an electrician to install a baseboard heater?

An electric baseboard heater requires a 20-amp circuit, according to instructions on The Spruce. You’ll also have to install a cable from the electrical service panel in your home to the baseboard heater. Installing the cable and connecting the heater should be done by a licensed electrician, though.

What type of thermostat is typically used with electric baseboard heaters?

Line-voltage thermostats are powered directly by a standard 120-volt or 240-volt circuit—the same circuit that powers a permanent electric heater. They are primarily used for electric resistance heating systems, such as electric baseboard heaters and in-wall heaters.

What kind of wire do I need for baseboard heaters?

A 240-volt baseboard heater requires its own dedicated 20-amp or 30-amp 240-volt electrical circuit. A 20-amp circuit can safely provide 3,800 watts of power, while a 30-amp circuit is suitable for up to 5,700 watts. The standard circuit cable for 20-amp circuits is 12-gauge cable; 30-amp circuits need 10-gauge cable.

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Can you use a programmable thermostat with baseboard heat?

Because electric heat is one of the most expensive ways to heat your home, you can cut your heating bills significantly by installing a programmable thermostat, like this one, which automatically turns down the heat when it isn’t needed. Make sure you buy a high-voltage thermostat designed for electric baseboard heat.

Is electric baseboard heat cheaper than gas?

Electric baseboard heat may be tempting, but it’s important to consider whether the benefits outweigh the costs. About 50 percent of all the homes in the U.S. are heated with natural gas. This is because the upfront cost of the electric baseboard units is so cheap compared to other heating systems.

Are new electric baseboards more efficient?

All electric heaters are 100% efficient at converting electricity to heat, regardless of how old they are, so replacing old baseboards with newer ones won’t save you any energy.

Can a 240V baseboard heater run on 120V?

Installing a 240-volt heater on a 120-volt circuit is not as big a safety risk, but you will notice that your heater will fail to work most times. When it does run, it will end up giving out much less heat than what you needed for your room and below what you expected.

How do I know if my baseboard heater is 120V or 240V?

Just look and if you see one black wire coming in and one going out, it’s a 120-volt heater. If you see two wires coming in — one black and one red — and two wires of the same colors going out, it’s a 240-volt heater.

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Why won’t my baseboard heaters turn on?

If your heater doesn’t produce heat after a couple of minutes, check the electrical system. Tripped breakers are a common problem with baseboard heaters. If it’s an electrical issue, replace the fuse in the breaker box. You should also lubricate the valves into the baseboard heater to prevent corrosion.

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