Hi Guys
So purchased my 1950ish ex RAF house in 2014 and it has a mix of single or double panel, no convector horrid looking Rads. They also perform crap. Sure they get nice and hot, almost scolding in some cases as I've wound the TRVs wide open as they simply don't heat the whole room very evenly. Being that central heating was only installed in 2000 when they were privatised, god knows where the Rads come from and why they are so awful. Oh and they decided not to chase any pipes!!!
About this time last year as I needed to ensure the baby's room was nice and warm (before really knowing anything about BTU calculations), I went down to Screwfix (don't shoot me just yet) and brought the biggest Rad that would fit in under my daughters window. Ended up with a 1200x600 Type 22 (or K2 I thinks some people refer to them as (double panel, double convector)) Kudox item (again don't shoot me, I've seen these Rads receive a ribbing on here!). At the same time, I fitted a Drayton Wiser with the room stat controlling downstairs and a rad stat in each of the slept in bedrooms.
The results of this, while our bedroom and the downstairs still has the uneven heating due to the crap rads, at least its more controllable, however when we go to wake the daughter up in the morning, as soon as you open the door, you walk into a lovely eventually heated room, it's not hot, it's just nice and even throughout.
So now I'm looking to fit new rads to the rest of the upstairs. Leaving downstairs for the moment as having an extension next year which will involve taking out some existing walls and moving things around so may as well spec the required Rads then. So my calculations are as followed:
Box Room 14.5m3 and requires 2000BTU as has 2 external walls
Master Bedroom 35m3 requires 4800BTU
Landing 12m3 (doesn't have a Rad atm but can piggyback off of bathroom) 2000BTU again (not 100% as doesn't have a window but calculator insisted on inputting something, however, we do have positive input ventilation so could do with extra).
Therefore was going to just go and get 3 x type 22 double, double Rads in the sizes I wanted that fit below the window or the wall space available best, as they easily meet or exceed the BTU required for each room and I can just control the required temperature via my Drayton Wiser with the addition of 2 new Smart TRVs. Simples, Right?!
Then it dawned on my that the type 22 in the daughter's room does hang off the wall quite far, 135mm to be precise. Not an issue in her room due to the layout but when looking at the other rooms, it is. On the landing, it will just look a bit clunky I think as it's small but in the master bedroom it eats into the walking space at the side of the bed and in the box room could get in the way or could just look weird. I'm not really sure yet as it's empty awaiting total rip out and redo.
Therefore do I simply just find slimmer rads like a type 21 for the master and maybe a single panel single convertor for the landing and box room, that meet the BTU requirements of the room and I will still get that nice even heat that is in my daughter's room or is it the double, double combo that's really pushing that heat all over the room? It kinda stands to reason that it is, otherwise, what would be the point of em?!
Oh ps based on comments on here in another thread, I'll probably look to get some Myson or Stelrad this time assuming they are not massively more expensive. However, if they are, it will be Kudox as it is by far the best Rad I have in my house at the moment and haven't had any issues with it. It fills the room with nice even heat. What else does one want?!
So purchased my 1950ish ex RAF house in 2014 and it has a mix of single or double panel, no convector horrid looking Rads. They also perform crap. Sure they get nice and hot, almost scolding in some cases as I've wound the TRVs wide open as they simply don't heat the whole room very evenly. Being that central heating was only installed in 2000 when they were privatised, god knows where the Rads come from and why they are so awful. Oh and they decided not to chase any pipes!!!
About this time last year as I needed to ensure the baby's room was nice and warm (before really knowing anything about BTU calculations), I went down to Screwfix (don't shoot me just yet) and brought the biggest Rad that would fit in under my daughters window. Ended up with a 1200x600 Type 22 (or K2 I thinks some people refer to them as (double panel, double convector)) Kudox item (again don't shoot me, I've seen these Rads receive a ribbing on here!). At the same time, I fitted a Drayton Wiser with the room stat controlling downstairs and a rad stat in each of the slept in bedrooms.
The results of this, while our bedroom and the downstairs still has the uneven heating due to the crap rads, at least its more controllable, however when we go to wake the daughter up in the morning, as soon as you open the door, you walk into a lovely eventually heated room, it's not hot, it's just nice and even throughout.
So now I'm looking to fit new rads to the rest of the upstairs. Leaving downstairs for the moment as having an extension next year which will involve taking out some existing walls and moving things around so may as well spec the required Rads then. So my calculations are as followed:
Box Room 14.5m3 and requires 2000BTU as has 2 external walls
Master Bedroom 35m3 requires 4800BTU
Landing 12m3 (doesn't have a Rad atm but can piggyback off of bathroom) 2000BTU again (not 100% as doesn't have a window but calculator insisted on inputting something, however, we do have positive input ventilation so could do with extra).
Therefore was going to just go and get 3 x type 22 double, double Rads in the sizes I wanted that fit below the window or the wall space available best, as they easily meet or exceed the BTU required for each room and I can just control the required temperature via my Drayton Wiser with the addition of 2 new Smart TRVs. Simples, Right?!
Then it dawned on my that the type 22 in the daughter's room does hang off the wall quite far, 135mm to be precise. Not an issue in her room due to the layout but when looking at the other rooms, it is. On the landing, it will just look a bit clunky I think as it's small but in the master bedroom it eats into the walking space at the side of the bed and in the box room could get in the way or could just look weird. I'm not really sure yet as it's empty awaiting total rip out and redo.
Therefore do I simply just find slimmer rads like a type 21 for the master and maybe a single panel single convertor for the landing and box room, that meet the BTU requirements of the room and I will still get that nice even heat that is in my daughter's room or is it the double, double combo that's really pushing that heat all over the room? It kinda stands to reason that it is, otherwise, what would be the point of em?!
Oh ps based on comments on here in another thread, I'll probably look to get some Myson or Stelrad this time assuming they are not massively more expensive. However, if they are, it will be Kudox as it is by far the best Rad I have in my house at the moment and haven't had any issues with it. It fills the room with nice even heat. What else does one want?!