How easy is to add another rad to this room please?

[ShaunCorbs]

630 does 30kw

 

[Bimble]

Thanks ver much gmartine, ok will check all this, but I am pretty sure rad heats up ok as was very hot when I touched it last. The room has 3 large sash windows. Could this be the reason I wonder? The rads in whole house heat ok, but other rooms have slightly larger size rads as there was the room on the wall to do so.
I am heating sitting room below all the time as well as loft but would like to turn sitting room rad off as we hardly use room and not sure the extra heat below is helping.
Will check calcs again and what you said
Thanks again
Betty

Hello Betty,

Can you check that the sash windows are actually latched closed correctly. Sometimes the catches are misaligned. They should pull the windows together and hold the draught seals against the sash frame. If they are out of alignment they push the windows apart, and away from the draught seals. This will cause a major draught. If you aren't sure post a picture of the catches in the closed position. I have seen this on many occasions.

 

[gmartine]

Despite the damper if the fireplace isn't being used block it up and tape up any gaps.

I'd still go with a four column version of the size you have which appeared to be available off the shelf. That'll give you an extra 500w around 40% more output which should be enough as well as avoid any intrusive work. If that rad is a special order I suppose you'll have to weigh up the cost of adding another 500w rad + work and having that one made as a regular rad swap.

 

[Bettyboo]

I spoke with Myson. They said the mean water temperature is important on the heatloss calculator and said they thought mine was 58.5 degrees

They calculated I needed a radiator that gave out 1601.20 watts for that room. However this is only an extra 374 watts!

I could get the 4 column 36SEC4040 off the shelf as it is 1640 watts but I am worried this is not enough as the sitting room below which is same size has a rad which is 1818 watts. I know the bedroom is on first floor but it has three large windows.

Only other two options are to have a bespoke rad made which has 3 columns but is 400 mm in height (100mm taller than the current one) giving out 1639 watts or a 4 column, again 400mm in height which will give out 2102 watts.

At least with all three options it would fit using the current pipes.

To accommodate the extra depth of the 4 column rad do you know if the copper pipes either end would have to be brought forward from the wall please? As I think it would mean I would have to have larger holes cut in the floor.

I am also not sure whether the 400mm would look strange in such a small space. It seems that either it is either going to look strange as it is deeper and will stick out more from the sill or it will look strange because it will be too tall under the sill! 🙁
(See current rad where it fits nicely )

I am worried I could go to expense of changing it and it still won't give out enough heat !
Betty

 

[gmartine]

It's only 38mm (1 1/2") extra width if you go for a four column, the pipes will need to be altered to accommodate the difference in rad centres unless you want to dig up the floor boards.