How To Use The i-warm Heating Calculator
To calculate how much you need to order to heat your property when using either the i-warm flux or the i-warm core.
Please use the calculator below by selecting the perfect solution, which will be dependent on whether you require primary or secondary heating, following by selecting your current insulation level. Once these selections have been made, you will be given a calculation in m2 (square metres) of how much i-warm flux or core you require.
For bespoke calculations, please fill out the form below.Â
i-warm flux & i-warm core Calculator
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The results provided by this calculator are approximate estimations only, based on the information you have entered, including room size, insulation level, and whether the system is intended as primary or secondary heating. Please be aware that actual heating requirements may vary due to a number of factors, such as:
Ceiling height, window size and glazing type, age and construction of the property, ventilation and air flow, type of floor covering, climate conditions regionally, presence of other heat sources or heat loss areas.
These figures are intended as a general guide and should not be relied upon as a definitive specification. We cannot accept responsibility for any incorrect selections, assumptions, or under/overestimations resulting from the information provided. For a more accurate assessment, we recommend consulting a qualified heating professional or contacting our team for further advice.
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What Our Customers Think
★★★★★
“We wanted to upgrade our heating without ripping up the floors, and i-warm Flux was the perfect solution. It installed seamlessly under our existing flooring and provides a beautifully even warmth. No more cold spots, just cosy heat that feels natural underfoot. Highly recommend for anyone looking for an easy retrofit option!”
— Sarah J., Manchester
★★★★★
“We chose i-warm Core for our new build, and it’s been fantastic. Installed under the screed, it provides a completely invisible heating system with no need for bulky radiators. The house stays warm and comfortable, and it’s so energy-efficient. Couldn’t be happier!”
— David R., London
★★★★★
“Our old heating system struggled to keep the house warm, but i-warm Flux changed everything. The underfloor infrared heat is gentle, consistent, and easy to control. Plus, it was quick to install without major disruption. It’s made our home so much cosier!”
— Emma & James T., Cambridge