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Step 1. Select Property Type:

Step 2. Add Room Dimensions (in metres):

Room Length
Room Width
Room Height
Your Power Requirement is: Watts

Step 3. Select Your Panel Combination:

Using the total watts calculated above, select a heating panel (or combination of panels) that equals this wattage. (Round Upwards if necessary and regulate via thermostat).


All information and advice in relation to Product suitability is for general guidance only. We cannot guarantee that any Product is suitable for your requirements or that your electrical system has the capacity to safely power the Products that you purchase from us. In some cases, changes to your electrical system may be required. This is your responsibility and Infrared Heating Supplies recommends that you seek the professional opinion of a qualified electrician before placing your order. All Products must be installed and operated strictly in accordance with the manufacturer’s guidelines which should take priority over all other information and advice. A failure to do so may compromise your safety and invalidate any manufacturer’s guarantee that comes with the Product.

Please Call 01204 520544 to get a Personalised Quote from our friendly sales team.

Calculator Key:

New Build House (1980)

Select the 'New Build House (1980)' option if your house was been built post 1980, with good insulation, loft insulation, double glazed windows & cavity walls.

Modern House (1930-1980)

Select the 'Modern House (1930-1980)' option if your house was built between 1930 - 1980, with good insulation & double glazing.

Older House (Pre-1930)

Select the 'Older House (Pre-1930)' option if your house was built pre-1930, with poor wall and loft insulation & single glazed windows.

Other Types of Property

If you are looking to heat a space which does not appear in the calculator's list of property options please call us on 01204 520544 to speak to one of our friendly infrared sales advisors. Outdoor locations, low energy houses, warehouses, churches, schools and all other spaces different to those described above may have different wattage requirements.