This time for a specific location. House with plumbing invented in the
60s, the boiler and plumbing aren't on an outside wall - and the nearest
one happens to be under a canopy where you really wouldn't want a plume
of steam.

The current flue runs up the old chimney, the boiler is a big
free-standing jobby in the kitchen, there's even an airbrick to make
sure it gets fed. Is there a modern boiler that could go in there?

Andy

On 2008-03-31 22:56:15 +0100, Andy Champ said:

This time for a specific location. House with plumbing invented in the
60s, the boiler and plumbing aren't on an outside wall - and the
nearest one happens to be under a canopy where you really wouldn't want
a plume of steam.

The current flue runs up the old chimney, the boiler is a big
free-standing jobby in the kitchen, there's even an airbrick to make
sure it gets fed. Is there a modern boiler that could go in there?

Andy

ONe of several types that use 50mm plastic tube as flue and intake -
e.g. Viessmann, MAN and some other German brands. This could either
be run via a quite tortuous route to an outside wall location or even
up the chimney.

On Mon, 31 Mar 2008 22:56:15 +0100, Andy Champ wrote:

This time for a specific location. House with plumbing invented in the
60s, the boiler and plumbing aren't on an outside wall - and the nearest
one happens to be under a canopy where you really wouldn't want a plume
of steam.

The current flue runs up the old chimney, the boiler is a big
free-standing jobby in the kitchen, there's even an airbrick to make
sure it gets fed. Is there a modern boiler that could go in there?

There are some boilers which can take a plastic pipe up the chimney.
Halstead I think is one, can't remember the other (or it may have been a
separate flue kit that could be used with different boilers).

You'll probably need a condensate pump too, but these can be had for 70 or
so notes.

--
John Stumbles

Question Authority

On Mon, 31 Mar 2008 23:06:38 +0100, Andy Hall wrote:

On 2008-03-31 22:56:15 +0100, Andy Champ said:

This time for a specific location. House with plumbing invented in the
60s, the boiler and plumbing aren't on an outside wall - and the
nearest one happens to be under a canopy where you really wouldn't want
a plume of steam.

The current flue runs up the old chimney, the boiler is a big
free-standing jobby in the kitchen, there's even an airbrick to make
sure it gets fed. Is there a modern boiler that could go in there?

Andy

ONe of several types that use 50mm plastic tube as flue and intake -
e.g. Viessmann, MAN and some other German brands. This could either
be run via a quite tortuous route to an outside wall location or even up
the chimney.

.... if it's dead straight (which it might be in a 60s flat).


--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html

Ed Sirett wrote:
On Mon, 31 Mar 2008 23:06:38 +0100, Andy Hall wrote:

On 2008-03-31 22:56:15 +0100, Andy Champ said:

This time for a specific location. House with plumbing invented in the
60s, the boiler and plumbing aren't on an outside wall - and the
nearest one happens to be under a canopy where you really wouldn't want
a plume of steam.

The current flue runs up the old chimney, the boiler is a big
free-standing jobby in the kitchen, there's even an airbrick to make
sure it gets fed. Is there a modern boiler that could go in there?

Andy
ONe of several types that use 50mm plastic tube as flue and intake -
e.g. Viessmann, MAN and some other German brands. This could either
be run via a quite tortuous route to an outside wall location or even up
the chimney.

... if it's dead straight (which it might be in a 60s flat).



Yes but it's a house.

Thanks for the hints guys, now I know they exist. It's a chalet style
house, and there's a bit of roof not far away in 2-inch pipe terms.
It's also right next to the washing machine, so a condensate drain
shouldn't be a problem.

Though I do wonder what mildly acid condensate will do to a
ceramic-and-cement drain system. Though this is on chalk, so probably
just clear away 30 years of scale.

Andy

On 2008-04-06 21:15:36 +0100, Andy Champ said:

Thanks for the hints guys, now I know they exist. It's a chalet style
house, and there's a bit of roof not far away in 2-inch pipe terms.
It's also right next to the washing machine, so a condensate drain
shouldn't be a problem.

Though I do wonder what mildly acid condensate will do to a
ceramic-and-cement drain system. Though this is on chalk, so probably
just clear away 30 years of scale.

Andy

Shouldn't be a problem because it will be heavily diluted with water
from normal uses.

However, if it bothers you, another option is to run the condensate to
a soakaway or to insert a neutralising device such as a Salamander
Condensafe on the way to the drain.

You can do reasonable lengths of condensate drain internally using
21-22mm plastic overflow pipe, but outside runs should be in 32mm (or
more) with a slope so that there is no impact from freezing.