How to Calculate the Minimum Size of an Electrical Baseboard Heater

Sizing Up Electrical Baseboard Heaters

As a suggestion, baseboard heaters use round 400 to 2,000 watts of energy. Greater wattage means extra energy to create warmth: a 1,500-watt heater can warmth a 150-square-foot room (10 by 15 toes with an 8-foot ceiling). You should use smaller baseboard heaters so as to add heat in rooms heated by central furnaces. Though you should use a 1,500-watt baseboard heater as a sole supply for warmth, it’s much more pricey than operating central heating techniques.

The writers at Stelpro share a easy equation that can be utilized as an electrical baseboard warmth calculator to see how a lot wattage you want in a room. The equation is room space x 10 = wattage. In case you have a room that’s 10 by 10 toes, for instance, its space equals 100 sq. toes. Multiply 100 by 10 to get 1,000. This method to find out baseboard heater necessities works for common rooms which have 8-foot ceilings.


Price to put in baseboard heating system by sort

A baseboard heating system prices $200 to $1,300 per unit with set up. Heaters are positioned alongside the baseboards, partitions, and under-cabinet toe areas to launch ground-level warmth, which rises to heat an area. Warmth is produced by a direct electrical connection or hydronic, fluid-based system.

Baseboard heating set up price by sort
Kind Common price to put in (per unit)
Electrical baseboard heater $200 – $1,100
Hydronic baseboard heater (water or oil) $430 – $1,200
Wall heater $370 – $1,200
Toe kick $420 – $1,300

Electrical baseboard heater set up price

An electrical baseboard heater prices $200 to $1,100 with set up or $50 to $130 for the unit alone. Electrical heaters require no ductwork or plumbing, so set up is cheaper and simpler than different heating techniques. Electrical models attract cool air and warmth it with electrical coils.

Long electric baseboard heater installed in living
Lengthy electrical baseboard heater put in in front room

Hydronic baseboard heater price

A hydronic baseboard heater prices $430 to $1,200 with set up or $180 to $320 for the unit alone. Hydronic fashions flow into sizzling liquid from an inner reservoir or the house’s boiler to offer radiant warmth. Hydronic models warmth slowly however keep heat lengthy after the operating cycle for extra environment friendly heating.

Baseboard vs. wall heater prices

An electrical wall heater prices $370 to $1,200 per unit with set up, relying on if the unit is surface-mounted or recessed in an inside wall. A wall heater supplies quick, even warmth through the use of a fan to flow into air. Wall heaters are perfect for bogs, workshops, and different small areas.

Baseboard vs. wall heater prices
Components Electrical baseboard heater Electrical wall heater
Unit price $50 – $130 $100 – $500
Put in price (per unit) $200 – $1,100 $370 – $1,200
Time to warmth 30 – 60 minutes to warmth a room Lower than 10 minutes to warmth a room
Lifespan 20 years or extra 8 to 12 years
Temperatures Operates at decrease temperatures and is cooler to the contact than a wall heater Operates at larger temperatures than baseboard a heater
House required 6 – 8 toes of size and fewer than 12 inches in peak 12 –16 inches size and peak
Noise Almost silent; a good selection for bedrooms Audible fan noise, however lower than an ordinary house fridge

Toe kick heater set up price

A toe kick heater prices $420 to $1,300 with set up or $175 to $430 for the unit alone. Toe kick heaters are space-saving and sometimes situated beneath cupboards, vanities, and stairways to offer supplemental floor-level warmth when wanted. Electrical and hydronic toe kick heaters can be found.

Return to top

Baseboard Heater Prices and Set up

Electrical baseboard heaters price between $25 and $250. Convection baseboard heaters are on the decrease finish of that vary, typically beneath $60, and hydronic baseboard heaters are on the upper finish, normally between $200 and $250. The price of set up is determined by whether or not you want knowledgeable electrician to attach a hardline heater to your property’s electrical wiring. A plug-in, in fact, doesn’t want knowledgeable set up.

Hardwiring a baseboard heater into your property’s electrical system could require running new wires by way of the wall, operating current wiring to the heater’s supposed location, and installing a new circuit in your electrical panel. Whereas it’s doable for a extremely succesful house owner or DIYer to carry out these duties, it’s normally greatest to rent a professional.

An electrician’s labor price might be between $75 and $250 an hour, and the overall price to buy and professionally set up a baseboard heater is normally between $400 and $1,200. Whether or not you name a professional or DIY, you may additionally have to remove a portion of the existing baseboard trim.

How To Select a Hydronic Baseboard Heater

Discovering the most effective hydronic baseboard heater to your house will largely rely upon the dimensions of the area you need to warmth. This may be decided by the heater’s energy ranking.

The output ranking for electrical hydronic baseboard heaters relies on watts (a measurement of electrical power consumption to be transformed to warmth power), whereas the ranking for hydronic baseboard heaters is in British Thermal Models or BTUs (a standard measurement of warmth power).

Usually, an electric heater ought to have 10 watts of energy for each sq. foot of residing area, and a radiator ought to put out 20 BTUs per sq. foot. For instance, a 100 sq. foot room would require no less than a 1,000 watt (100 x 10) electrical hydronic baseboard heater, or a 2,000 BTU baseboard radiator. It’s necessary to make sure your boiler has a big sufficient BTU output capacity to accommodate the ranking of the baseboard radiator earlier than it’s put in.

Baseboard warmth price per 30 days to run

Baseboard warmth prices $480 to $900 per 30 days to run for 10 hours per day, relying on the house measurement. In bigger properties, areas with excessive utility prices, or colder climates the place heaters run extra typically, baseboard heating prices $1,500+ per 30 days.

Baseboard heaters power utilization

A well-insulated room requires 10 watts per sq. foot of area, whereas a poorly-insulated older house wants as much as 15 watts per sq. foot.

Baseboard heaters power utilization
Room Space Watts required Day by day power use*
100 sq. ft. 1,000 10 kWh
150 sq. ft. 1,500 15 kWh
300 sq. ft. 3,000 30 kWh
400 sq. ft. 4,000 40 kWh
500 sq. ft. 5,000 50 kWh

*Primarily based on 10 hours per day of use.

Use the next method to calculate the associated fee per 30 days to run baseboard heaters:

Energy (Watts) x Worth Of Electrical energy ($ per kWh) ÷ 1,000 = Heating prices per hour

Is baseboard heating costly?

An electrical baseboard heater is among the costliest methods to heat a house, in accordance with the U.S. Department of Energy. Electrical baseboard heating prices greater than different gasoline sources, together with propane, oil, or pure fuel. Nonetheless, baseboard heaters are cost-effective for secondary zoned heating.

Return to top

Calculating Heater Wattage: A Fast and Simple Technique

A quite simple methodology to find out how a lot electrical baseboard heating wattage you want might be discovered by calculating the sq. footage of the room, then multiplying it by 10 watts to supply a baseline wattage requirement. 

For instance, if you’re heating a 12-foot x 12-foot bed room, the area consists of 144 sq. toes. Multiplying this by 10 watts exhibits that the mandatory heater wattage for the room is 1440.

This base wattage calculation methodology presumes that the room makes use of trendy building strategies with typical wall, ceiling, and flooring insulation and that it has 8-foot ceilings. If the room differs from these specs, it's advisable that you simply make the next changes: 

  • Add 25 p.c extra wattage if the ceilings are 10 toes excessive somewhat than 8 toes. 
  • Add 50 p.c extra wattage if the ceilings are 12 toes excessive somewhat than 8 toes.
  • In an older house, multiply the sq. footage by 12.5 watts, not 10.
  • In an ultra-insulated home, multiply the sq. footage of the room by 7.5 watts, not 10.

For the sake of our instance, let's assume that the room has regular specs. With 144 sq. toes, the required wattage is 1440 watts, which implies you possibly can warmth the room with a single 1500-watt baseboard heater or two 750-watt heaters.

System 4

the place:

Q = the required warmth output of the baseboard at design circumstances (Btu/hour) from Step 6.

q = the warmth output of 1 foot of baseboard (Btu/hour/ toes) from Step 7.

Spherical off L to the subsequent larger entire foot size, known as “Lrounded.”

Step 9: Calculate the outlet temperature of the baseboard utilizing:

The Drip Cap

  • Sizing your heaters correctly helps to make sure your property maintains a cushty temperature no matter fluctuations in climate.
  • Calculate the sq. footage of the area you need to warmth with baseboard heaters.
  • Assuming you will have a 10-by-10 room with common insulation, you would want 1,000 watts of baseboard warmth if the room has a median ceiling peak.