Which is best - running a central heating pump at its fastest or
slowest speed setting?
--
Hugo Nebula
'What you have to ask yourself is, "if no-one on the internet wants
a piece of this, just how far from the pack have you strayed?"'

On Tue, 14 Dec 2004 23:46:12 +0000, Hugo Nebula abuse@localhost
strung together this:

Which is best - running a central heating pump at its fastest or
slowest speed setting?

Depends, there's a setup process involved. Generally faster for bigger
systems, but run it so it works and it's quiet.
--

SJW
Please reply to group or use 'usenet' in email subject

In message , Lurch
wrote
On Tue, 14 Dec 2004 23:46:12 +0000, Hugo Nebula abuse@localhost
strung together this:

Which is best - running a central heating pump at its fastest or
slowest speed setting?

Depends, there's a setup process involved. Generally faster for bigger
systems, but run it so it works and it's quiet.


Depending on your system, make sure the faster speeds are not pumping
hot water into the header tank.
--
Alan

On Wed, 15 Dec 2004 00:27:40 +0000, Alan
strung together this:

Depending on your system, make sure the faster speeds are not pumping
hot water into the header tank.

Thanks but the pump in my combi is set perfectly. If I have any
problems withh pump speed I'll be sure to ask though.
--

SJW
Please reply to group or use 'usenet' in email subject

In an earlier contribution to this discussion,
Hugo Nebula abuse@localhost wrote:

Which is best - running a central heating pump at its fastest or
slowest speed setting?


Run it at the lowest speed which gives an adequate performance. With a
conventional boiler, this would imply an 11 degC drop across all radiators
when they are correctly balanced.
--
Cheers,
Set Square
______
Please reply to newsgroup. Reply address is invalid.

On Tue, 14 Dec 2004 23:46:12 +0000, Hugo Nebula abuse@localhost
wrote:

Which is best - running a central heating pump at its fastest or
slowest speed setting?

The right speed. Boilers are designed for 80C out, 70C back, a 10C
drop. Radiators are designed for 75C average temperature.

To fast and boiler drop is 10C giving reduced efficiency as the lower
the water temperature the more energy taken from the hot gases.
Radiator temperature is higher making them give out more that their
rating.

To slow and boiler drop is 10C. Efficiency is higher but 55C and
you run the risk of condensation and rust in the boiler heat
exchanger. Radiator temperature is lower so their output is less.

The 80C is the turn off temperature so that the fixed value so
increase drop across the boiler works back from that. For example,
20C drop, is 80C out, 60C back, radiator temp 70C.

All the above ASSUMES conventional boiler. Condensers like a low
return temp as that helps them condense. For them 55C return is good
so you have a lower radiator temperature and lower radiator output and
hence condensers need larger radiators (if they are to condense all
season).


--

Malcolm

Malcolm Reeves BSc CEng MIEE MIRSE, Full Circuit Ltd, Chippenham, UK
, or ).
Design Service for Analogue/Digital H/W & S/W Railway Signalling and Power
electronics. More details plus freeware, Win95/98 DUN and Pspice tips, see:

http://www.fullcircuit.com or http://www.fullcircuit.co.uk

NEW - www.CharteredConsultant.co.uk - The Consultant A-List

"Set Square" wrote in message
...
In an earlier contribution to this discussion,
Hugo Nebula abuse@localhost wrote:

Which is best - running a central heating pump at its fastest or
slowest speed setting?


Run it at the lowest speed which gives an adequate performance. With a
conventional boiler, this would imply an 11 degC drop across all radiators
when they are correctly balanced.

Misadvise. You run it to what the balance procedure dictates.

In an earlier contribution to this discussion,
IMM wrote:

"Set Square" wrote in message
...

Run it at the lowest speed which gives an adequate performance. With
a conventional boiler, this would imply an 11 degC drop across all
radiators when they are correctly balanced.

Misadvise. You run it to what the balance procedure dictates.

Haven't seen you for a bit. I was begininning to think that you'd taken the
advice you offered to me - and topped yourself!

Since you *are* still around, please explain in words of one syllable how my
advice gives a different result from following the balancing procedure.
--
Cheers,
Set Square
______
Please reply to newsgroup. Reply address is invalid.

"Set Square" wrote in message
...
In an earlier contribution to this discussion,
IMM wrote:

"Set Square" wrote in message
...

Run it at the lowest speed which gives an adequate performance. With
a conventional boiler, this would imply an 11 degC drop across all
radiators when they are correctly balanced.

Misadvise. You run it to what the balance procedure dictates.

Haven't seen you for a bit. I was begininning to think that you'd taken
the
advice you offered to me - and topped yourself!

Since you *are* still around, please explain in words of one syllable how
my
advice gives a different result from following the balancing procedure.

I repeat...."You run it to what the balance procedure dictates".

The message
from "IMM" contains these words:

I repeat...."You run it to what the balance procedure dictates".

Why don't you answer the question? You can't of course which is why you
answer anything that baffles you with obfuscation.

--
Roger

"Roger" wrote in message
k...
The message
from "IMM" contains these words:

I repeat...."You run it to what the balance procedure dictates".

Why don't you answer the question? You can't of course which is why you
answer anything that baffles you with obfuscation.

I repeat...."You run it to what the balance procedure dictates".

On Wed, 15 Dec 2004 22:37:25 -0000, "IMM" strung
together this:

I repeat...."You run it to what the balance procedure dictates".

**** off nobcheese.
--

SJW
Please reply to group or use 'usenet' in email subject

"Lurch" wrote in message
...
On Wed, 15 Dec 2004 22:37:25 -0000, "IMM" strung
together this:

I repeat...."You run it to what the balance procedure dictates".

**** off nobcheese.

tsk, tsk, tsk.

The message
from "IMM" contains these words:


"Roger" wrote in message
k...
The message
from "IMM" contains these words:

I repeat...."You run it to what the balance procedure dictates".

Why don't you answer the question? You can't of course which is why you
answer anything that baffles you with obfuscation.

I repeat...."You run it to what the balance procedure dictates".

More obfuscation.

You need to detail your proprietary balance procedure to demonstrate
that it does indeed dictate the pump speed rather than adding it on as a
corollary.

--
Roger

"Roger" wrote in message
k...
The message
from "IMM" contains these words:


"Roger" wrote in message
k...
The message
from "IMM" contains these words:

I repeat...."You run it to what the balance procedure dictates".

Why don't you answer the question? You can't of course which is why
you
answer anything that baffles you with obfuscation.

I repeat...."You run it to what the balance procedure dictates".

More obfuscation.

You need to detail your proprietary balance procedure

The standard balance procedure. You do not guess the pump speed.

On Thu, 16 Dec 2004 10:20:57 -0000, "IMM" strung
together this:

You need to detail your proprietary balance procedure

The standard balance procedure. You do not guess the pump speed.

Why don't you **** off and die?
--

SJW
Please reply to group or use 'usenet' in email subject

"Lurch" wrote in message
...
On Thu, 16 Dec 2004 10:20:57 -0000, "IMM" strung
together this:

You need to detail your proprietary balance procedure

The standard balance procedure. You do not guess the pump speed.

Why don't you **** off and die?

Do not give advise on something you know nothing.

On Thu, 16 Dec 2004 11:36:54 -0000, "IMM" strung
together this:

Do not give advise on something you know nothing.

Do not give advise on something you know nothing.

Now be a good chap and **** off and die.
--

SJW
Please reply to group or use 'usenet' in email subject

"Lurch" wrote in message
...
On Thu, 16 Dec 2004 11:36:54 -0000, "IMM" strung
together this:

Do not give advise on something you know nothing.

Do not give advise on something you know nothing.

I have an echo.

I repeat: " Do not give advise on something you know nothing."

In an earlier contribution to this discussion,
IMM wrote:


I repeat: " Do not give advise on something you know nothing."

Where did you learn your English?

Did you mean to say "Do not give adviCe on something ABOUT WHICH to know
nothing"?
--
Cheers,
Set Square
______
Please reply to newsgroup. Reply address is invalid.

On Thu, 16 Dec 2004 12:55:14 -0000, "Set Square"
strung together this:

Where did you learn your English?

Did you mean to say "Do not give adviCe on something ABOUT WHICH to know
nothing"?

Careful, he'll have the post police onto you......
--

SJW
Please reply to group or use 'usenet' in email subject

In article ,
IMM wrote:
You need to detail your proprietary balance procedure

The standard balance procedure. You do not guess the pump speed.

Why don't you **** off and die?

Do not give advise on something you know nothing.

But it's advice which can be followed. Yours, as usual, means nothing.
Even if the sentence made sense.

--
*Wrinkled was not one of the things I wanted to be when I grew up

Dave Plowman London SW
To e-mail, change noise into sound.

In article ,
Set Square wrote:
I repeat: " Do not give advise on something you know nothing."

Where did you learn your English?

Did you mean to say "Do not give adviCe on something ABOUT WHICH to know
nothing"?

That would be the norm from IMM too. ;-)

--
*How can I miss you if you won't go away?

Dave Plowman London SW
To e-mail, change noise into sound.

"IMM" wrote in message
...

"Roger" wrote in message
k...
The message
from "IMM" contains these words:


"Roger" wrote in message
k...
The message
from "IMM" contains these words:

I repeat...."You run it to what the balance procedure dictates".

Why don't you answer the question? You can't of course which is why
you
answer anything that baffles you with obfuscation.

I repeat...."You run it to what the balance procedure dictates".

More obfuscation.

You need to detail your proprietary balance procedure

The standard balance procedure. You do not guess the pump speed.

Okay, let's assume I don't know how to set up a central heating system.
Please detail what the correct procedure entails for me.

"Mike" wrote in message
...

"IMM" wrote in message
...

"Roger" wrote in message
k...
The message
from "IMM" contains these words:


"Roger" wrote in message
k...
The message
from "IMM" contains these words:

I repeat...."You run it to what the balance procedure dictates".

Why don't you answer the question? You can't of course which is
why
you
answer anything that baffles you with obfuscation.

I repeat...."You run it to what the balance procedure dictates".

More obfuscation.

You need to detail your proprietary balance procedure

The standard balance procedure. You do not guess the pump speed.

Okay, let's assume I don't know how to set up a central heating system.
Please detail what the correct procedure entails for me.

See the FAQ.

On Thu, 16 Dec 2004 19:59:59 -0000, "IMM" strung
together this:

See the FAQ.

ITYM "I have no idea what I'm on about".
--

SJW
Please reply to group or use 'usenet' in email subject

"Lurch" wrote in message
...
On Thu, 16 Dec 2004 19:59:59 -0000, "IMM" strung
together this:

See the FAQ.

"I have no idea what I'm on about".

You do appear confused. Get it sorted.

"Lurch" wrote in message
...
On Thu, 16 Dec 2004 19:59:59 -0000, "IMM" strung
together this:

See the FAQ.

ITYM "I have no idea what I'm on about".

Yep. I was hoping he might summarize Phil's document and show some
understanding of it. Sadly even that appears beyond him.

"Mike" wrote in message
...

"Lurch" wrote in message
...
On Thu, 16 Dec 2004 19:59:59 -0000, "IMM" strung
together this:

See the FAQ.

ITYM "I have no idea what I'm on about".

Yep. I was hoping he might summarize Phil's document and show some
understanding of it. Sadly even that appears beyond him.

What don't you know?

"IMM" wrote in message
...

"Mike" wrote in message
...

"Lurch" wrote in message
...
On Thu, 16 Dec 2004 19:59:59 -0000, "IMM" strung
together this:

See the FAQ.

ITYM "I have no idea what I'm on about".

Yep. I was hoping he might summarize Phil's document and show some
understanding of it. Sadly even that appears beyond him.

What don't you know?

I've read and understood the FAQ. The original poster probably didn't even
know they were there yet all you could come out with was a list of obscure
comments designed to keep the person unenlighted about what to do. This is
both bad manners and a waste of Usenet bandwidth.

In message , IMM
writes

"Lurch" wrote in message
.. .
On Thu, 16 Dec 2004 10:20:57 -0000, "IMM" strung
together this:

You need to detail your proprietary balance procedure

The standard balance procedure. You do not guess the pump speed.

Why don't you **** off and die?

Do not give advise on something you know nothing.

Now this is somewhere that we wish you would demonstrate your obvious
abilities
--
geoff

In message , Lurch
writes
On Thu, 16 Dec 2004 12:55:14 -0000, "Set Square"
strung together this:

Where did you learn your English?

Did you mean to say "Do not give adviCe on something ABOUT WHICH to know
nothing"?

Careful, he'll have the post police onto you......

Only if he managed to spell their email address correctly

--
geoff

"Mike" wrote in message
...


The standard balance procedure. You do not guess the pump speed.

Okay, let's assume I don't know how to set up a central heating system.
Please detail what the correct procedure entails for me.

I wrote a full article on balancing including setting up the pump .... it
used to be in the FAQ ... take a look.
If it isn't there anymore let me know and I'll eMail you a copy.

Rick

"Rick Hughes" wrote in message
...

"Mike" wrote in message
...


The standard balance procedure. You do not guess the pump speed.

Okay, let's assume I don't know how to set up a central heating system.
Please detail what the correct procedure entails for me.

I wrote a full article on balancing including setting up the pump .... it
used to be in the FAQ ... take a look.
If it isn't there anymore let me know and I'll eMail you a copy.


Thanks - not sure if it was yours I read but the FAQ worked fine. What I
objected to was IMM assuming new posters were somehow omnipotent and knew
lots of information was available there.