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Wattage Calculator

1
Select the Area Type

Choose the type of building or environment you're heating. This affects how much energy you’ll need.

New Build Modern Older Office School
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Choose Your Measurement Units
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Enter Room Dimensions
Total Wattage Needed: 0 W
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Download or Email Your Results

Not sure what size infrared heater you need? Use our free calculator to find the ideal infrared heating panel for your room – ensuring maximum comfort and energy efficiency.

Calculate Your Heating Needs in 3 Easy Steps

  • Measure your room's Length × Width × Height
  • Select your Room Type
  • Get your Recommended Wattage instantly

Our tool will calculate the required wattage. You can then choose from our range of infrared heaters to meet your required wattage

Why Use an Infrared Heating Calculator?

  • Avoid over/under-heating – get precise recommendations tailored to your space
  • Save money – ensure efficient energy usage and lower running costs
  • Quick and easy – instant results, no guesswork

Infrared Heating Calculator for UK Homes & Businesses

Choosing the right size infrared heater is essential to ensure your space is both comfortable and energy efficient. Every property is different - from well-insulated new builds to older, draughtier homes or larger commercial environments. Our infrared heater calculator removes the guesswork by recommending the optimal wattage based on your room's dimensions and usage type.

Whether you're heating a small bedroom, a spacious open-plan kitchen, a home office, garage, or retail shop, this tool gives you personalised wattage recommendations instantly. It helps prevent under-heating or energy wastage — so you can choose with confidence.

Need help with specialist spaces?
For harder-to-heat areas such as conservatories, garden rooms, or spaces requiring higher temperatures (like hot yoga studios or spa facilities), we recommend speaking directly with our expert team.

Contact our technical team for tailored guidance.

Note: Our calculations are based on heating rooms up to 25°C, which suits most domestic and commercial applications. For colder zones or glass-heavy rooms, additional considerations may be required.

Looking for room-specific guidance? Visit our Infrared Heating Solutions page to explore recommended heaters by area type - from homes and offices to schools, workshops, conservatories, and more.

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