Heat output calculator for radiators

Whether it is BTU or Watts, our helpful radiator heat calculation video will guide you through exactly how to calculate the heat required for your room from a radiator. Then you will be able to choose a designer radiator or cast iron radiator that will perfectly heat your space.
For more information, please contact our expert team directly on 01274 567789 or visit www.featureradiators.co.uk.

[@kreg_92]

Exactly what I needed. Thank you very much

[@williambelford9661]

To simplify it - you need the volume of the room. 60 years ago primary school were taught to work out volume.

[@donaldwright2426]

What is the 50 number in the calculations? Is it the temperature of the heating fluid ? Thanks!

[@featureradiators]

Hi Donald, thanks for the question. The 50 is the Watts per cubic meter of heat being put into the room, so different rooms have different Watts per meter to be put in, for example the lounge is 50 as we are sitting and want to be comfortable. Whereas a hallway will have 30 Watts per cubic meter, we pass through and just want to create an ambient temperature. Hope that answers it for you. Anything else 01274 567789, [e-mail] or www.featureradiators.co.uk and our online chat bottom right corner.

[@dellboy571]

What do you multiply with for a kitchen?

[@featureradiators]

Thanks for the query Dellboy. Kitchen x 40. Kitchen with dining as well x 50, the latter because you are sat much like a lounge. Any more info required feel free to use [e-mail] or 01274 567789

[@hazmat5749]

Your method gives crazy results. Why not do a proper heat loss calculation, its really not that difficult?

[@featureradiators]

Hi Hazmat, thanks for your message. The method we use is tried and tested within the heating industry in general, i expect most companies use it. More than happy to chat to you further regards this - [e-mail] or 01274 567789

[@ChiefBrianIrons]

Hi there great video. I have one question I calculated my BTU it around 1550. The radiator I am looking at has BTU 2858 is that way too much

[@featureradiators]

Hi Brian, thanks for the positive comment. I would say so, you can put a thermostatic valve on that and it will regulate it but i expect you can find better value on a smaller size. 10% maybe 20% more on BTU would be fine to cover any eventualities. I can check the BTU just let me know - 01274 567789 / [e-mail]

[@rudejude87]

@@featureradiators The input temperature for BTU advertising is delta t 50 so input from boiler is 70°C. Which isn't the most economical output. Would it not be better to oversize all the radiators in a home to target most economical output temperature of 45°C for a condensing combi boiler?

[@featureradiators]

@@rudejude87 Thanks for the comment. I believe i understand the point and i don't disagree, lower temps means more efficiency but major considerations here are cost of the radiators initially as they need to be much bigger and also space, generally people don't have the wall space to accommodate radiator sizes that mean the temp here would heat the rooms. Interested to chat more - [e-mail]

[@eddiebarry1910]

I have 2 radiators in my lounge. Do I half the BTU for each?

[@featureradiators]

Hi Eddie, sorry for the late reply. Yes, get the BTU required for the room and if you are installing 2 radiators, you can split it evenly or unevenly between the 2 radiators but just ensuring you reach the desired BTU total from both the radiators. We can help with this, feel free to get in touch on [e-mail]

[@bruceboucher2134]

Poor advice not correct as the TD varies as the F1

[@featureradiators]

Hi Bruce, thanks for the comment. The advice given is the same we have been using for 22 years of business and glad to say it has served us well. Happy to discuss further as i'm not sure of your abbreviations, feel free to contact us directly on [e-mail]