How important is radiator location in a room?

[Dan Robinson]

Indeed Terry. .


So John. How come rad position doesn't factor into heatloss calculation?

How many system designs and installs have you got under your belt?


I guess the lack of an answer to a direct question like that is none.

Zip.

Nada

Fook all.


As in you know next to nothing unless you can misinterpret it from Google. .

 

[Corgigrouch]

Heatloss from he room is going to be the same regardless.

No, heat loss is directly proportional to the temperature difference between the hot and the cold object.

I see your difficulty now, if that is not something you understand.

John.... If we were to apply your logic then clearly the best way to satisfy your desire to minimise heat loss is to not fit a radiator anywhere in the room.

It is the job of the heating installer to make the room comfortable based on the design of the room. It is the job of the double glazing installer and the guy installing insulation to minimise the heat loss...

Stick the radiator at the warmest end of the room then the warm end stays warm and the cold end stays cold and the room stays uncomfortable

 

[JohnD]

I can see that you won't find this comprehensible, if you don't understand the principles of heat loss.

You can google Thermodynamics if you want.

 

[TCCHeating]

You can google Thermodynamics if you want.

Think that might be your problem in the first place

 

[Dan Robinson]

If you could see, we would all be in trouble sweetheart.

How many John? A figure. a simple number that tells us how many you have installed/designed/not messed up.

Not hard is it?

 

[Corgigrouch]

I can see that you won't find this comprehensible, if you don't understand the principles of heat loss.

You can google Thermodynamics if you want.

John, sometimes you can give some good and valid advice.... This time you need to accept that you are wrong.

 

[JohnD]

the idea of putting rads under the window is an old one. With draughty old single glazed windows there, the heat loss is highest, so the maximum heat goes straight outside to warm the sky.

 

[Dan Robinson]

I've just remembered - our utility room has the rad oposite the door.



Now that is a very unevenly heated room.


John, mate, give it up. I am feeling embarrassed for you.


My house is cavity insulated, double glazed and the utility room is part of an extension only 6 months old. .

Do you need me to post the picture again?

How about answering the question? How many systems have you designed and installed?

 

[JohnD]

are you still denying that the idea of putting rads under the window is an old one, and that with draughty old single glazed windows there, the heat loss is highest, so the maximum heat goes straight outside to warm the sky?

 

[Dan Robinson]

as I suspected you're full of sh|t. And your little buddy Norcon isn't helping much is he?

 

[Corgigrouch]

John, so you suggest that it is wise to keep one end of the room deliberately cold to minimise heat loss?..... Even with modern double glazing the glazing will always be the least insulated part of the room and without the heat rising from the radiator forming an air curtain there will always be what you call a draught..EVEN with a totally sealed room

 

[Norcon]

as I suspected you're full of sh|t. And your little buddy Norcon isn't helping much is he?

You're obviously basing your information on your second edition R.D. Treolar and using 2 W/m2 as the U value for external walls.

Whilst CIBSE Concise handbook (2nd Edition) cites 1.31 W/m2 with argon filled low E units for vertical double glazing.
That makes your argument look silly.

The window the least insulated part off the room?
I think not!

 

[Stocho]

Cant argue with that. (Im sure some will try though) thanks dan

Well may be you can't argue with that - but even the fact that it implies that tempreture has to be as low as 19C for discomfort to start is already laugphable - most people need +22C for comfort.

Placing near windows might (or might not) give more even tempreture in the room but it WILL give higher energy loss to the sreet especially if radiators are then curtained up. I would much rather have them on internal walls and have tempreture in the room in the 22-24 range.

As far as pictures produced are conerned without on information such as:
1. All the dimensions of the room.
2. Whether radiatirs are curtained up.
3. Whether the room is connected to other rooms or kept shut.
4. How ait tight is the house.
5. what sor of movemen of people in the house.
6. Termal conductivity of the walls, ceiling etc.
7. Number of floors, arrangement of rooms if doors are open.
8. Tempreture differential.

Overall in my experiene it is possibe to even have rooms with no radiators and to keep them comfortably warm due to radiators in other rooms. Though if energy effiiency is the key then better to have radiators in every room with electronic control of heating in every room with radators on internal walls.

 

[Norcon]

And its showing a 1 degree difference as an argument for discomfort to begin.

Again laughable.

 

[Corgigrouch]

The heating installer cannot be held responsible for how the idiot customer decides to insulate his radiators from the room....The radiators in my bay window are not insulated with long curtains, MDF radiator covers or any other useless junk that folk place over their rads...