Heating Calculator

Free Online Heating Calculator - 0845 643 1138

Work out the wattage required to heat your room. A radiator with insufficient output may never raise the temperature to that required. Outdoor temperatures, external walls, insulation, heated adjacent rooms (i.e. above, below and to the side) all play a part.

Room type: Is the house: Dimentions: (meters)

Window type:

Low Value High Value
BTU/hr N/A N/A
Wattage N/A N/A
Kilowatt N/A N/A

This is a guide online, this heating calculator does not account for any other factors, we advise the higher wattage for a faster warm up and greater control. Also note this guide is for one room only.

Free Online Heating Calculator

Why should you use the Heating Calculator?
Our Heating Calculator has been designed to not only be simple to use, but to return as accurate results as possible. With our years of experience we have been able to offer a Heating Calculator which gives you options.

It can be hard to know for sure what size heater you need. However our Heating Calculator gives a high and low value. This way you have a good idea what size you should be looking for. The high and low values are used to take into account other factors we may have missed. For example a room with lots of items will hold the heat better than a sparse room.

Also it can be hard to fill out other Heating Calculators online, they often ask question which will have a major impact on the end result which you may not be sure about. By giving a range of results we can allow you the room to judge and get you all set up on the right track.

Everything you need to use our Heating Calculator is the room measurements and the type of windows. You will also need to match the room type, what is the room commonly used for. This will help us understand what could be in the room. The last extra bit of information is the state of the building. Is it sheltered or exposed. Again this all helps build up a basic picture.

Our Heating Calculator is designed to get you on the right track and to understand what you need to be looking for. If you have any question or would like more information about your results, give us a call.