Learn more about Thermogroup Fan Heaters

How much does it cost to run a fan heater?

To determine the cost of running a fan heater, we need to consider a few factors. The primary factors include the power rating of the heater (measured in wattage), the duration of usage, and the cost of electricity per kilowatt-hour (kWh) in your area. Once you have this information, you can calculate the cost using the following formula:

Cost = (Power rating in watts / 1000) x (Duration of usage in hours) x (Cost of electricity per kWh)

As an example, out TF1800 unit draws 1800 watts so let’s assume that was running for two hours a day, an hour in the morning and an hour in the evening.

1800 watts/1000 = 1.8kw x 2 = 3.6kw x 0.35c/kwh = $1.26 per day to run the fan heater.


Where can a fan heater be installed?

A fan heater can be installed in various locations within a bathroom to provide warmth and comfort. Wall-mounted fan heaters must be installed at a safe distance from water sources like sinks or showers. A fan heater should be positioned in an area where it can effectively distribute heat throughout the space.

Most fan heaters have a low IP rating which means they will need to be outside of zone zero and zone one.

Regardless of the installation option you choose, it is crucial to follow the manufacturer’s instructions and regulations related to electrical appliance installation. If you are unsure about the specific requirements for installing a fan heater in your bathroom, it is recommended to consult a professional electrician for guidance.


Pros & Cons of bathroom fan heaters?

Bathroom fan heaters, like any appliance, have their advantages and disadvantages. Here are some common pros and cons of using bathroom fan heaters:


  • Efficient heating: Fan heaters are generally quick and efficient at providing heat. They can warm up the bathroom rapidly, making it more comfortable during colder periods.
  • Compact size: Fan heaters are often compact and lightweight, making them easy to install in bathrooms with limited space.
  • Instant heat: Unlike central heating systems that may take time to warm up an entire room, fan heaters provide immediate heat. It means you can enjoy the warmth as soon as you turn them on.
  • Can be retrofitted: Thermogroup fan heaters come with a lead and plug which allows them to simply be plugged into a power point for ease of install.
  • Can be used in any room, they are not limited just to bathrooms.


  • Noise: Fan heaters can be noisy due to the operation of the fan. The sound of the fan motor may bother some individuals, especially if they prefer a quieter bathroom environment.
  • Limited coverage: Fan heaters typically provide localized heating, meaning they may not effectively heat larger areas. If you have a spacious bathroom, you may need to consider additional heating options or multiple fan heaters to achieve the desired warmth throughout the space.
  • Energy consumption: Fan heaters can consume a significant amount of energy, especially if used for extended periods. Running them for long durations can lead to higher energy bills. It’s important to be mindful of energy usage and use the heater judiciously to avoid excessive costs.
  • Aesthetics – Not everyone appreciates the look of a wall-mounted fan heater in their bathroom.
  • A fan heater provides a heat source from one point in the room, this leads to inconsistent heat throughout the room as opposed to Underfloor Heating which has the heat source right across the floor providing a much more even and consistent heat source.

While fan heaters can be a convenient heating solution for bathrooms, it’s important to weigh these pros and cons based on your specific needs and preferences. Consider factors such as the size of your bathroom, noise tolerance, energy efficiency goals, and safety requirements before deciding on whether a fan heater is the right choice for you.


Explain the difference between our two models?

The TF2400 has a white powder-coated stainless-steel cover with a plastic base whilst the TF1800 is an all-plastic construction.

The TF2400 uses 2400 watts of power which automatically steps down the watts once the room heats up whereas the TF1800 uses 1800 watts of power.

The TF2400 is a simple-to-operate unit via a pull cord whereas the TF1800 is programmable and has a presence sensor to detect movement and switch on.

Both units come with a lead and plug or can be hardwired by an electrician.


How do I control a fan heater?

The TF2400W operates via a simple on/ off pull cord. The TF1800 offers multiple different operating options including an on/off switch, an automatic setting with a motion detector to sense when you are in the room, or a full 7 day program to come on based on your desired heating schedule.

Fan heaters can be a great way to add instant heat to your bathroom in a cost-effective way. This may be a more practical solution then installing Underfloor Heating, especially if you are not doing a bathroom renovation.

View our Fan Heater Range