How Much Does it Cost to Run a 2,000 Watt Electric Heater Per Hour in The UK

Latest UK 2023 Price Cap Updated, For Up-to-date 2,000 Watt Running Costs

Are you wondering how much it will cost to run a 2,000 watt electric heater per hour in the UK? Are you hoping it will cost 1p per hour to run an electric heater? Well, let me shatter your dreams and advise that it will be much more than a few pennies an hour. Let’s look at the cost to use a 2,000 watt electric heater below.

The cost to run a 2,000 Watt electric heater per hour in the UK will depend on how much your electricity provider charges per kilowatt-hour.

As of 2023, with the new price cap, the average unit of electricity (kilowatt-hours) is 0.28p, and a kilowatt is the equivalent to 1,000 watts.

The best way to work out the cost for your energy provider would be:

Cost of a unit of electricity (kWh) x heater power output (Watts converted to kWh) = cost to run an electric heater for one hour

£0.28p × 2 kWh = £0.56p to run for one hour.

The following is how you convert watts to Kilowatt hours

  • 400 watts = 0.4 kWh
  • 500 watts = 0.5 kWh
  • 750 watts = 0.75 kWh
  • 1,000 watts = 1 kWh
  • 1,500 watts = 1.5 kWh
  • 2,000 watts = 2 kWh

How much power does a 2,000 watt heater use?

As illustrated by the example above, a 2,000 watt electric heater will use 2 kilowatts of energy per hour, which will roughly cost £0.56p depending on how much you are charged per kilowatt by your supplier.

How Can You Make a 2,000 Watt Electric Heater More Energy Efficient?

The best way to make your 2,000 watt electric heater run more efficiently so that it uses less electric is to utilize the built-in thermostat. The thermostat works by switching the heater on or off when it has reached the desired temperature or fallen below the temperature set on the thermostat.

For example, if you set the temperature on the heater at 23 degrees, once the heater reaches that temperature it will cut off, and no longer use electric to power the heater. Once the temperature has dropped below 23 degrees, it will switch back on again.

This will keep the room at a nice comfortable temperature, the electric heater will use less electric compared to constantly being on, and save you some money on your heating.

What Size Room Is a 2,000 Watt Heater Suitable For?

There is nothing more frustrating than having an underpowered heater in the middle of a UK winter, that’s why it is important you have the right wattage size heater for the room you intend to use it in.

There are many factors to consider about the room first, such as insulation, are your walls insulated or solid brick walls, obviously you will lose more heat through brick walls.

How many outside walls are there in the room, if you are in a semi-detached property with brick walls, and have two outside walls in a room, you may lose more heat than having one outside wall.

A general rule of thumb to follow is room in square meters x 100 watts

If your room is 4 meters x 5 meters, this will be 20 square meters.

20 sqm x 100 watts = 2,000 watts electric heater for an average terraced property.

If your insulation is poor, have old single glazed windows, a heater at 2,500 watts would be a safer choice. If you have a new build with excellent insulation, 1,500 or 1,000 watts will be sufficient.

Is a 2000 Watt Heater Cheaper Than Central Heating?


The cost of running a 2000W electric heater compared to central heating can depend on several factors, including the size of the space you’re heating, the insulation of the room, and your local energy prices. However, in general, using an electric heater is often more expensive than using central heating for the same space.

According to a spokesperson from Energy Helpline, using an electric heater can be more than twice as expensive as using central heating when heating the same space. Similarly, an expert at Bionic, an energy contract comparison site, states that using an electric heater can cost about twice as much as using central heating.

However, there are circumstances where using a space heater could potentially save you money. For instance, if you’re only heating a small area or for a short period of time, a space heater might be a more economical choice.

Remember, while a 2000W heater may initially seem cheaper to run per hour than central heating, it’s important to consider the overall costs. Central heating is generally designed to heat an entire home efficiently, whereas a 2000W heater is best suited for heating a single room or space.

In conclusion, while a 2000W heater may be a good solution for heating a small space quickly, for most households and larger spaces, central heating is likely to be a more cost-effective option.

Types of 200 Watt Electric Heaters

Halogen Heater

A halogen heater is a type of electric heater that uses halogen elements to produce heat. The heater works by passing electricity through a halogen bulb, which then radiates heat. This process is known as radiant heating.

What sets halogen heaters apart from other types of electric heaters is their efficiency and quick heat delivery. They provide instant warmth, targeting objects and people directly instead of heating the surrounding air. This makes them ideal for heating specific areas quickly.

However, it’s worth noting that the heat they produce does not circulate around the room as effectively as convection or fan heaters, so they’re best used in smaller spaces or for personal heating. Also, because the bulbs can get extremely hot, safety precautions should be taken when using halogen heaters, especially around children and pets.

Fan Heater

A fan heater is a type of electric heating device that works by using a fan to pass air over a heat source. This heated air is then pushed out into the room, thereby increasing the room’s temperature.

The heat source in a fan heater is typically an electric element, but it could also be a hot metal coil. When electricity passes through this element or coil, it heats up. The fan then blows air across this heated element, which warms the air and circulates it around the room.

Fan heaters are known for their ability to quickly heat up a space. They are typically compact and portable, making them convenient for use in different rooms. However, they can be a bit noisy due to the fan mechanism, and they may not be as energy efficient as other types of heaters for prolonged use.

Oil Filled Radiator

An oil filled radiator, or column heater, is a type of electric heating device that uses oil as a heat reservoir. It consists of a series of connected metal columns or fins filled with oil.

Here’s how it works: The electric element at the base of the heater warms up the oil inside, and this heat is then transferred to the metal walls of the columns. The heated metal surfaces then radiate warmth into the surrounding space.

Oil filled radiators are known for their efficiency and ability to provide long-lasting heat. Once the oil is heated, it retains its warmth for a considerable time, allowing the heater to maintain room temperature with less frequent power usage.

These heaters operate silently since they don’t utilize a fan, making them ideal for environments such as bedrooms or offices where noise could be a disturbance. However, they do take longer to warm up compared to other types of electric heaters like fan or halogen heaters.

Convector Heater

A convector heater is a type of electric heating device that works on the principle of convection. The process begins when the heater’s electric element warms the air directly above it. As this heated air rises, cooler air is drawn into the bottom of the heater. This cycle of warm air rising and cool air being drawn in creates a continuous flow of heated air that spreads throughout the room.

Convector heaters are known for their ability to heat a room evenly and quickly. They are typically designed with a slim profile, making them suitable for use in various settings, from homes to offices. Unlike fan heaters, they operate quietly, as they don’t rely on a fan to distribute the heated air.

However, like all other types of electric heaters, convector heaters can consume a significant amount of electricity, especially if used for prolonged periods. It’s also worth noting that, unlike oil-filled heaters, they don’t retain heat for long once switched off.

Conclusion on Cost-Efficiency of 2,000 Watt Electric Heaters

While the idea of running a 2,000 watt electric heater for just a few pennies per hour is appealing, the reality is notably different. As the calculations demonstrate, such a heater would cost approximately £0.56p per hour to run, based on average UK electricity costs as of 2023. However, there are ways to improve energy efficiency and potentially save on costs, such as making good use of the built-in thermostat to regulate temperature.

Additionally, it’s important to match the size of the heater to the room it’s intended for. A 2,000 watt heater, for example, would be suitable for a 20 square meter room in an average terraced property. The type of room insulation and number of outside walls also need to be considered.

Ultimately, the specific circumstances of your home and heating needs will dictate the most cost-effective electric heater. It’s always advisable to make informed decisions based on careful considerations and thorough research.