All electric space heaters convert 100 % of the electricity they draw into heat, meaning "efficiency" comes down to targeted heat delivery and smart controls. For zone heating, Infrared and Oil-Filled radiators are the most efficient, while PTC Ceramic heaters are the best for quickly heating a localized space.
Conclusion. So, after looking at the different types of electric heaters available, due to its lower power-output, halogen heaters are the cheapest electric heaters to run. Shop our range of Halogen Heaters here.
The cheapest heaters to run are generally low-wattage personal heaters, such as halogen heaters or, for larger spaces, oil-filled radiators and infrared heaters that feature, or can be used with, adjustable thermostats to regulate energy consumption. Energy-efficient personal heaters like the Comfort Zone CZ35E are cost-effective choices for localized heating.
Running a 1500-watt (1.5 kW) heater for 24 hours consumes 36 kWh of electricity. Nationwide, this typically costs between $𝟑.𝟔𝟎 and $𝟖.𝟔𝟒 per day, depending on your local energy rates and how often the heater's thermostat cycles the heating element on and off.
- Reverse cycle split system air conditioners (A.K.A heat pumps): the most energy efficient electric heater. 5 and 6 star reverse cycle units can be even cheaper to run than gas heaters, producing just one-fifth of the greenhouse gas emissions that a standard electric heater creates.
Unlike traditional fan heaters that rely mainly on heating elements and forced air, ceramic heaters are known for being more efficient, quieter, and safer—thanks to their self-regulating ceramic components. In short, a ceramic heater uses electricity to warm ceramic plates, which then radiate heat into the room.
For a bedroom, the safest space heaters feature no glowing elements and include automatic shut-off and tip-over protection. Oil-filled radiators (like those by De'Longhi) and modern ceramic convection heaters with cool-touch housing (such as the Dreo Solaris) are generally considered the safest options for overnight use.
In most homes, Heating and Cooling (HVAC) systems drive the highest energy costs, accounting for nearly 40% to 50% of your total electricity bill. Following these, the appliances that run up your bill the most include water heaters, refrigerators, and laundry machines.
A 1500-watt heater typically heats a room up to 150 square feet (as a primary heat source) or up to 250 square feet (if used as supplementary heat alongside a central system). This capacity is ideal for small to medium-sized bedrooms, home offices, or dorms.
To heat a 24x24 foot (576 sq. ft.) garage, you will generally need between 30,000 and 45,000 BTUs. The exact amount depends heavily on your local climate, ceiling height, and insulation levels.
Lower your thermostat to 68∘F68 raised to the composed with power cap F68∘𝐹 (and 10∘−15∘𝐹 lower while sleeping). Seal drafts around windows and doors with weather-stripping or caulk, and change your furnace filter monthly. These simple actions significantly reduce energy consumption and can quickly lower your overall heating bill.
Consider the size and layout of your space. Larger homes may require whole-home systems, while smaller areas can benefit from space heaters or zone-based solutions. Your climate and seasonal needs are also important, as colder regions may need more robust systems or supplemental heating.
Halogen heaters tend to be the cheapest radiant heaters as they have a low power rating (but also produce less heat), while oil-filled radiators are often the cheapest convector heater because there is a thermostat to control the temperature.
For a safe, effective heater during a power outage, choose a portable, indoor-rated propane heater, such as the Mr. Heater Buddy series. These operate on small 1 lb propane cylinders without electricity, and they feature vital safety systems like low-oxygen shutoff and tip-over protection.
Yes, space heaters will significantly increase your electric bill if used regularly, as they draw a high amount of power. Most standard portable heaters use about 1,500 watts of electricity. Running one for just 8 hours a day can add roughly $40 to $60 to your monthly bill, depending on your local electricity rates.
The most efficient way to heat a small room is to use an electric space heater—such as an oil-filled radiator or a ceramic convection heater—to warm only the space you are in. Maximize heat retention by sealing drafts, covering windows, and insulating bare floors.
Best for small rooms → Fan heaters are a handy choice when you want quick warmth in spaces like bedrooms, studies or bathrooms. Best for larger rooms → Panel heaters and oil column heaters are better suited to bigger living spaces where you want steady, comfortable warmth.
A 30,000 BTU heater typically heats a space between 1,000 and 1,500 square feet, depending on your climate and the room's insulation.
Heating and cooling (HVAC systems)
Heating and air conditioning are the largest sources of residential electricity use in most climates. According to the U.S. Energy Information Administration, space heating and cooling together account for more than 50% of a home's annual energy consumption.
The fix: Lower your home temperature to 68 degrees when you're home. Maintain comfort by adding extra layers of clothing – try fabrics like fleece, flannel and wool – and don't forget comfy slippers and blankets. If you can comfortably go a degree or two cooler than 68, your wallet will benefit even more!
The Top Energy-Draining Appliance: Space Heating & Cooling
This includes both forced-air systems, heat pumps, furnaces, baseboards, window A/C units, and fans. Because they run for long periods and often at high wattage, they dominate the consumption profile.
Consumer Reports tests space heaters primarily on room heating ability, spot heating, and strict fire and safety criteria, such as overheat protection and tipping tests. Highly rated models often cost around $75 to $100 and feature auto-climate control and tip-over shut-offs.
Again, using a heated blanket or mattress protector can help give an extra boost of warmth. If your bedroom gets very cold in the winter, a fan heater can make it warmer fast. You should also check to see if there are any drafts in your home, and seal these up to stop heat from escaping.
Infrared room heaters are generally considered less harmful as they use radiant heat to warm objects and people directly rather than drying out the air. They produce minimal noise, do not burn oxygen, and are energy-efficient.