Hot Radiator, Cold Room.
 

I've just knocked my bathroom and toilet into a single room
(7'6"x7'6"x8'3"). I used Barlo's heat loss calculator to work out that I
needed approx 3200 btu so have installed a 3900 btu Biasi towel radiator.

I was expecting toasty but although the radiator is very hot, the room is,
at best, slightly chilly. The radiator (or system) hasn't been balanced but
gradually closing the lockshield valve seems to have little noticable
effect.

Any ideas because I'm not looking forward to shaving tomorrow morning...

Thanks,
col




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Hot Radiator, Cold Room.
 

On Sun, 29 Feb 2004 21:20:10 -0000, "SpeedyC"
wrote:

I've just knocked my bathroom and toilet into a single room
(7'6"x7'6"x8'3"). I used Barlo's heat loss calculator to work out that I
needed approx 3200 btu so have installed a 3900 btu Biasi towel radiator.

Was this figure gross or derated to account for the actual water
temperatures? With a conventional boiler, you need to generally
multiply manufacturer's gross output figures by 0.9.

Did you account for air changes in the room?



I was expecting toasty but although the radiator is very hot, the room is,
at best, slightly chilly. The radiator (or system) hasn't been balanced but
gradually closing the lockshield valve seems to have little noticable
effect.

Opening it should increase the output up to a point.

To ask the obvious question - you haven't got towels on it have you?

The output quoted will be without of course.



Any ideas because I'm not looking forward to shaving tomorrow morning...

Thanks,
col




---

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Version: 6.0.601 / Virus Database: 382 - Release Date: 29-02-04


..andy

To email, substitute .nospam with .gl

Hot Radiator, Cold Room.
 

Did you account for air changes in the room?

Draughts?

Hot Radiator, Cold Room.
 

SpeedyC wrote in message ...
I've just knocked my bathroom and toilet into a single room
(7'6"x7'6"x8'3"). I used Barlo's heat loss calculator to work out that I
needed approx 3200 btu so have installed a 3900 btu Biasi towel radiator.

I was expecting toasty but although the radiator is very hot, the room is,
at best, slightly chilly. The radiator (or system) hasn't been balanced but
gradually closing the lockshield valve seems to have little noticable
effect.

Any ideas because I'm not looking forward to shaving tomorrow morning...

Thanks,
col


IME, I reckon you need about double the size of the radiator for that size
of bathroom and that's if the heat losses are fairly low. Sorry.
Regards
Capitol

Hot Radiator, Cold Room.
 

"OldScrawn" wrote in message
...
Did you account for air changes in the room?


Yes.

Draughts?

Maybe the odd one, but not really any more than before.

Hot Radiator, Cold Room.
 

IME, I reckon you need about double the size of the radiator for that size
of bathroom and that's if the heat losses are fairly low. Sorry.
Regards
Capitol



So much for heat loss calculators...

Hot Radiator, Cold Room.
 

On Mon, 1 Mar 2004 07:55:17 -0000, "SpeedyC"
wrote:


IME, I reckon you need about double the size of the radiator for that size
of bathroom and that's if the heat losses are fairly low. Sorry.
Regards
Capitol



So much for heat loss calculators...


Did you use the correct material choices? I found that one or two
of the U values in the barlo program are wrong (can't remember which).
It's worth checking against another source of U values.



..andy

To email, substitute .nospam with .gl