Because electric baseboard heaters are usually a permanent installation, it’s important to understand issues like correctly sizing the heater, choosing the right type of heater, as well as potential disadvantages of using baseboard heat.
Before Buying a New Electric Baseboard Heater
Electric baseboard heaters are ideal for bedrooms, bathrooms, basements, moderately-sized living rooms, dining rooms, or hallways. Install one or two electric baseboard heaters per room. A small single baseboard heater cannot heat an entire house nor can it heat a large space. Electric baseboard heaters are often a solution for an add-on like a bump-out, room addition, garage conversion, full-size addition, or a detached accessory unit like a tiny house or granny pod. Running central heat to these areas can be more costly than it’s worth. So, electric baseboard heaters fill this need.
Buying Considerations for Electric Baseboard Heaters
Shop for an electric baseboard heater based on key factors like heat output, source of power for the heater, and the length of the heater. Whether you want an onboard or wall thermostat and how much the heater will cost to run are also important.
Heat Output
Correctly sizing the electric baseboard heater to the room is crucial. Undersized heaters run continuously or fail to provide adequate warmth. Oversized heaters needlessly cost more to purchase and install. A simple working rule for sizing baseboard heaters is to multiply the room’s square footage by 10 to arrive at a minimum wattage requirement for the heater. For example, a small bedroom 10 feet long by 10 feet wide is 100 square feet. Multiply 100 by 10 to arrive at a wattage requirement of 1,000 watts. This rule of thumb applies to rooms with 8-foot ceilings and an average amount of insulation (R-13). Since not all homes are the same, four sizing variations help to closely align the baseboard heater with the room:
Add 25-percent more watts: For rooms with 10-foot ceilings rather than 8-foot ceilingsAdd 50-percent more watts: For rooms with 12-foot ceilings rather than 8-foot ceilingsMultiply by 12.5 watts, not 10 watts: For older or poorly insulated homesMultiply by 7.5 watts, not 10 watts: For new or well-insulated homes
Unless you are experienced at electrical work, you’ll need to factor in the cost of hiring a qualified electrician to create these circuits, as well as follow-up wall repairs. Whether this is a new installation or a one-for-one replacement, it is likely that your community will require that you apply for an electrical permit. This is applicable both to work performed by you or by a licensed electrician. Open wall space is a major consideration with electric baseboard heaters since 12 inches in front and 6 inches on each side are required. This essentially means that the entire area in front of the baseboard heater should not have any obstructions like sofas, desks, armoires, or even draperies. Electric baseboard heaters are usually about 7 to 10 inches high and project from the wall about 3 inches.
Thermostat
Electric baseboard heaters are controlled by thermostats that help the room maintain a set temperature.
Built-in thermostats: Some types of electric baseboard heaters have digital or dial thermostats built into the heater. This eliminates the need to install a separate thermostat on the wall. While this type of thermostat saves on installation costs, it’s less convenient because the user needs to reach to floor level to adjust the thermostat. Plus, since heat rises, the thermostat senses the coldest part of the room, so readings are not indicative of the rest of the room. Wall thermostats: Most 120 volt or 240 volt baseboard heaters use a high- or line-voltage thermostat. Mounted on the wall at about 48 to 54 inches off the floor, the thermostat is installed on the cable that leads to the baseboard heater. Controlled either digitally or with a dial, this type of thermostat mechanically allows or stops the flow of electricity.
Cost of Electricity
All-electric homes, an initiative that fell out of favor years ago, is once again at the forefront as communities enact natural gas bans to curb greenhouse emissions. Depending on how your area generates its electricity, using electric baseboard heaters might be a positive step toward making your home a green home. At the same time, it’s vital to consider the cost to run an electric baseboard heater in your home. Use this formula, where the cost of electricity is expressed in kWh or kilowatt-hours: As an example, running a standard 1,000-watt electric will cost $1.60. The national average for the price of electricity is $0.160 per kWh.
Types of Electric Baseboard Heaters
Two important categories of electric baseboard heaters are convection heaters and hydronic or oil-filled heaters.
Convection/conventional baseboard heater: A standard or convection baseboard heater heats up by way of an electric heating element cased in a metal housing. Metal fins are intended to radiate some heat after power to the unit has been shut off. These units heat up quickly. They do not hold heat for very long.Hydronic or oil-filled baseboard heater: A growing category of electric baseboard heaters have an internal sealed chamber that contains either water or oil, usually mineral oil. Oil-filled heaters are trending more than water-filled heaters. The liquid retains and continues to radiate residual heat, even after the power is shut off to the unit. The heated liquid controls sharp temperature swings found with convection baseboard heaters.
Cost of Electric Baseboard Heaters
Electric baseboard heater pricing follows a basic pattern: conventional heaters are less expensive than oil-filled and longer heaters are less expensive than shorter heaters on an inch-by-inch basis.
The average cost of an electric baseboard heater, across all categories, is $168.On average, convection or conventional heaters cost $76, or $1 to $3 per inch, making them four times less expensive than hydronic or oil-filled heaters.On average, convection or conventional heaters between 48 and 96 inches long cost $94, or $1 to $2 per inch, making them less expensive than other lengths.On average, oil-filled electric baseboard heaters cost $336 or $4 to $11 per inch.Oil-filled baseboard heaters that cost less than the average price range from 46 to 94 inches.
How to Choose an Electric Baseboard Heater
Where to Shop
Buying In-Store
Locally, electric baseboard heaters are available at most home centers, electrical supply houses, and some hardware stores. Many electrical supply houses are wholesale-only, so first make sure that they sell retail products.
Buying Online
When shopping for an electric baseboard heater online, filter the products by length, voltage, and convection vs. hydronic or oil-filled heaters, then sort by price. Oil-filled heaters are often classified as hydronic heaters, so read the descriptions carefully. Colors are usually limited to white, black, and almond or beige.
Where to Buy an Electric Baseboard Heater
If you hire an electrician, the electrician can supply a basic electric baseboard heater. For a greater selection, purchase your own electric baseboard heater and have the electrician install it for you. Online outlets will have a greater variety of baseboard heaters than local stores.
