I
iamelectric
i know this is not electrical but i need some advice , where is the best place to put radiators ? under a window or by the door to the room , googled it but mixed answers , anyone know
Discuss radiators in the UK Electrical Forum area at ElectriciansForums.net
OP
Geordie Spark
On behalf of myself and the other members of the forum who have commented on this thread, I thank you for your extremely useful comment.
Now, go and play in the traffic!!
- - - Updated - - -
On behalf of myself and the other members of the forum who have commented on this thread, I thank you for your extremely useful comment.
Now, go and play in the traffic!!
OP
chrisjacob
There is a common saying in the above posts that better to place radiators underneath window as it is energy and heat efficient. But in my opinion radiators must be placed on the walls opposite windows, it would be beneficial and also it create lots of saving fundamentals.
![[ElectriciansForums.net] radiators](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/12/12459-98961d1e7c0c5f2b90c47ed8e36eccd6.jpg "[ElectriciansForums.net] radiators")
Can you expand on your theory that 'radiators must be placed on the walls opposite windows' ? Daz
OP
rsp84
Theory (to avoid wasted heat) is under a window, as the warm air rises it circulates through the room, but only draw back is if your curtains are longer and overhang the rad, then they cause a trap and more heat can be lost through the glass of the window and prevent the circulation.
But u can get perminiter heating that replaces skirting boards that go all the way round the room of choice, so end of the day, its not worth worrying too much about.
But u can get perminiter heating that replaces skirting boards that go all the way round the room of choice, so end of the day, its not worth worrying too much about.
"Hello lamelectric",
I am a Heating Engineer:
The Radiators should be fitted under the Windows.
This was NOT just done in `Years gone by` because the Draughts around [older] Windows caused the Heat to be `pushed` into the Room - it was / is done because the area in front of a Window is the Coldest part of any Room.
If a Radiator is fitted elsewhere in a Room the area in front of the Window may be noticeably `cooler` during Cold Weather.
But - as Geordie Spark stated this is slightly less important where Double Glazing is installed - and perhaps good Thermally insulated Curtains.
The Convector Radiators that We now use circulate the Warm Air from the Radiator and Heats the Room much better than the old basic Radiators used to - so that would help if the Radiator had to be located elsewhere in the Room - but I would only advise this if there was no alternative - or if the Customer insisted on having Furniture under the Window.
I would ALWAYS fit the Radiators under the Windows unless there was a very good reason not to - advising the Customer / Householder NOT to have the Curtains hanging in FRONT of the Radiator !
I DO have a Radiator in my own Home which I installed NOT under a Window - BUT this is because the underneath of the Window sill is only 400mm from the Floor and the Window is in a corner of the Room - although I could have gotten a Radiator 300mm High - it would have extended about 1200mm past the Window - and have looked ridiculous.
Unless there is a problem with the Window location / Wall area under and adjacent the Window regarding an available wall area to install the Radiator / Furniture layout - It IS very probable that the Heating Installer is trying to get away with having to take up Floorboards on a route to under the Window - save on copper tube and fittings - save on Labour for installing the copper tube to get to the under the Window position.
Regards,
Chris
Last edited:
"Hello iamelectric",
Please accept my apology for misspelling your Forum Name in my previous message to You - I was using my Laptop in a room where the lighting was dimmed and I mistook the `i` as an `l` - "Sorry".
I was glad to be able to help You with the details on Radiator positioning.
There are people who would disagree with positioning Radiators under Windows - But generally they do not know the facts on the matter relating to the Convection / Radiation processes and the Heat / Air movement within a Room.
Because of the use of Convector Radiators this is not quite as crucial as it was with the older type Radiators from the 1970`s / 1980`s - or Radiators from any period without Convector `Fins`.
One point about whether to have a Radiator under a Window is that when the `Cold` comes in through the Glass of the window it `Spills down` into the Room - imagine it like a water fall coming in through the window.
This happens much less with Double Glazed Windows than with single glazed - but it still happens enough to cause discomfort / cold areas / draughts in front of the Window and across the Room.
IF You had a Convector Radiator on a wall perhaps opposite the Window the Convection Heat is rising out of the Radiator - with cooler Air being drawn into the Convector Fins from floor level - this convection process will draw the Cold Air which is `spilling down` from the Window across the Floor at low level - causing a Cold `Draught` in the area in front of the Window AND at low level across the Room.
If the Radiator is fitted under the Window this will NOT occur as the Radiator Heat / Convection process would negate the Cold Air `spilling` from the Window to low level within the Room - even with Thermostatic Radiator Valves the cold air `spilling process` with not cause problems with the Valve Sensor because once the Radiator heats up that will stop cold air `spilling` to low level / to the TRV sensor.
I hope that this additional information will enable You to speak to the Heating Installer with more knowledge - possibly with more knowledge on THIS matter than HE has !
In a Large Room it is often necessary to have at least TWO Radiators - there should still be one fitted under the Window if possible - with the other either at the other side of the Room or perhaps diagonally opposite - depending upon Furniture or other outside walls.
Obviously an exception to this is where it is necessary to have Two Radiators - One either side of a Window - because of available wall space / the Room layout / Furniture layout.
When this is done there will probably be some Cold Air `spilling down` to low level but as the Radiator convection process is occurring adjacent to the Window this should lessen the `Cooler area` in front of the Window / Cold Draught scenario.
I hope that this has been helpful.
Regards,
Chris
Please accept my apology for misspelling your Forum Name in my previous message to You - I was using my Laptop in a room where the lighting was dimmed and I mistook the `i` as an `l` - "Sorry".
I was glad to be able to help You with the details on Radiator positioning.
There are people who would disagree with positioning Radiators under Windows - But generally they do not know the facts on the matter relating to the Convection / Radiation processes and the Heat / Air movement within a Room.
Because of the use of Convector Radiators this is not quite as crucial as it was with the older type Radiators from the 1970`s / 1980`s - or Radiators from any period without Convector `Fins`.
One point about whether to have a Radiator under a Window is that when the `Cold` comes in through the Glass of the window it `Spills down` into the Room - imagine it like a water fall coming in through the window.
This happens much less with Double Glazed Windows than with single glazed - but it still happens enough to cause discomfort / cold areas / draughts in front of the Window and across the Room.
IF You had a Convector Radiator on a wall perhaps opposite the Window the Convection Heat is rising out of the Radiator - with cooler Air being drawn into the Convector Fins from floor level - this convection process will draw the Cold Air which is `spilling down` from the Window across the Floor at low level - causing a Cold `Draught` in the area in front of the Window AND at low level across the Room.
If the Radiator is fitted under the Window this will NOT occur as the Radiator Heat / Convection process would negate the Cold Air `spilling` from the Window to low level within the Room - even with Thermostatic Radiator Valves the cold air `spilling process` with not cause problems with the Valve Sensor because once the Radiator heats up that will stop cold air `spilling` to low level / to the TRV sensor.
I hope that this additional information will enable You to speak to the Heating Installer with more knowledge - possibly with more knowledge on THIS matter than HE has !
In a Large Room it is often necessary to have at least TWO Radiators - there should still be one fitted under the Window if possible - with the other either at the other side of the Room or perhaps diagonally opposite - depending upon Furniture or other outside walls.
Obviously an exception to this is where it is necessary to have Two Radiators - One either side of a Window - because of available wall space / the Room layout / Furniture layout.
When this is done there will probably be some Cold Air `spilling down` to low level but as the Radiator convection process is occurring adjacent to the Window this should lessen the `Cooler area` in front of the Window / Cold Draught scenario.
I hope that this has been helpful.
Regards,
Chris
Last edited:
"Hello again iamelectric",
I would be very interested in what He says - Please do post His comments on here.
Perhaps You could Copy & Paste the main points in my messages to You into a Text Document and Print it out as some `Notes` for your meeting with Him.
Regards,
Chris
Lots of capital letters and colours there. Daz
Nope, none at all. Daz
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