Radiator Size - Should I go larger then calculators suggest?

Joined
15 Jul 2018
Messages
200
Reaction score
8
Country
United Kingdom
Sponsored Links
I have the same radiators and if i hadn't gone over spec i would've been cold.
They don't work as well as standard panel radiators, so go with the highest btu you can.
 
Classic case of 'form over function'
Ever wondered why large ("ugly") cast iron radiators seemed to work yet modern ("stylish') compact units seem to struggle
 
I have the same radiators and if i hadn't gone over spec i would've been cold.
They don't work as well as standard panel radiators, so go with the highest btu you can.

Thanks for your input. Do you have the same size?
 
Sponsored Links
I normally go 50% bigger - most radiator calculators (especially ones that use old fashioned BTU rather than modern kW) tend to use flow and return temperatures that are too high for modern systems. Calculate based on 70°C flow / 50°C return for best efficiency
 
Thanks for your input. Do you have the same size?
No, i have a 1400mm.
Accordingly to btu i needed a 1000mm but it wouldn't have been enough.
Those radiators get very hot, but the heat output is nowhere near the standard steel panel radiators.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Back
Top