central heating

[toonjabba]

could anyone tell me how to work out the btu of an old radiator. i just want to swap a very old radiator for a new one and dont want to over power the system with one thats alot more powerful. also can anyone let me know were i can get outsized radiators i need to change one that is 2600 wide and 600 high dont want to spend too much either.
cheers

 

[buffy27]

could anyone tell me how to work out the btu of an old radiator. i just want to swap a very old radiator for a new one and dont want to over power the system with one thats alot more powerful. also can anyone let me know were i can get outsized radiators i need to change one that is 2600 wide and 600 high dont want to spend too much either.
cheers

this is not a complicated/technical job, don t over concern yourself about the b t u values etc.u are only changing one rad.swap the rad for a similar size.it will be fine.
manifacturers have spec on individual rads.the kw/btu varies from make,model and size.
standard height is 500 .the fact u want a 600 high by 2600 width will mean ££$$.don t know where u will sourse this.quinn rads in ireland would make it ,probably cost a few hundred.

 

[toonjabba]

i may have a few more rads to change and they may want one or two extra added to the system will this make a difference to the overall system with the new ones having a slighty higher btu value and the extra rads will this make a difference ,

if so how do i will have the values of the new rads but not the old ones in order to work out the btu of the whole system to see if the boiler will handle the extra. sorry if im getting it all wrong.

cheers

 

[stevetheplumber]

i may have a few more rads to change and they may want one or two extra added to the system will this make a difference to the overall system with the new ones having a slighty higher btu value and the extra rads will this make a difference ,

if so how do i will have the values of the new rads but not the old ones in order to work out the btu of the whole system to see if the boiler will handle the extra. sorry if im getting it all wrong.

cheers

a rough way to work out domestic heat loss is five times the cubed size of the room erring on the high side for living rooms and down a bit for bedrooms
if your rad is 2600 long its not that old as its a metric size just replacing size for size is gonna be okand much easier than altering pipe work
almost any manufacturer will do a 2600x600so a decent plumbers merchant will be able to order it if they dont have it in stock

 

[toonjabba]

the rad im replacing was 2740mm the 2600mm quoted was the nearest the merchant could get me i can do the calculation on the room size and type but is there a way of doing it the other way by working out the btu of a rad from its type and size.

 

[leakylea]

there are dozens of free rad sizing sites on the web.or buy a mears calculator

 

[migoplumber]

is the quicky, not cubic feet of the room times 5 to gives btus. dont quote me on that