New boiler flue location
 

Hi

I need to get a new boiler installed. I will be getting a condensing
combi boiler and I want to relocate it to the cellar. The problem I
have is getting the flue out. The best place would mean the flue
exiting the cellar less than 300mm from the ground which is,
apparently, against the regs. Is it possible\allowed to have the flue
exit the house close to the ground but then have a 90 degree elbow to
take the flue and air intake up the wall to an acceptable height -
perhaps even to the eaves?

I have looked at the Vaillant ecoTec boiler flue options and they
appear to have these elbow fittings and extension tubes.


Thanks

Mike

New boiler flue location
 

New boiler flue location
 

Phil L wrote:
wrote:
Hi

I need to get a new boiler installed. I will be getting a condensing
combi boiler and I want to relocate it to the cellar. The problem I
have is getting the flue out. The best place would mean the flue
exiting the cellar less than 300mm from the ground which is,
apparently, against the regs. Is it possible\allowed to have the flue
exit the house close to the ground but then have a 90 degree elbow to
take the flue and air intake up the wall to an acceptable height -
perhaps even to the eaves?

I have looked at the Vaillant ecoTec boiler flue options and they
appear to have these elbow fittings and extension tubes.


Thanks

Mike

The reason you can't have it exiting so low is because of the possibility of
blockage (snow drifts, stuff falling across it etc) - I can't see any
problem with using the elbows etc to get the desired height, it's what the
pieces are made for!

just ensure that cellar is not airtight as the burner has to breathe
air in.

New boiler flue location
 

The message . com
from contains these words:


just ensure that cellar is not airtight as the burner has to breathe
air in.

I think the Vaillant ecoTechs are all balanced flue - though I may be wrong.

--
Skipweasel
Pay no attention to that man behind the curtain.

New boiler flue location
 

wrote:

just ensure that cellar is not airtight as the burner has to breathe
air in.

I doubt that you can get any modern condensing boilers that are not also
room sealed (i.e. balanced flue).


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

New boiler flue location
 

Is it possible\allowed to have the flue exit the house close to
the ground but then have a 90 degree elbow to take the flue
and air intake up the wall to an acceptable height - perhaps
even to the eaves?

No problem. In fact, it is often only possible with a condensing boiler, as
the flue operates at such a low temperature.

You may have trouble getting rid of the condensate in a cellar installation.
Consider a condensate pump, such as a Sanicondens, to pump it away to the
drain. Do not accept the condensate just dripping onto the ground, like most
cowboy installers would have you believe is acceptable.

Christian.

New boiler flue location
 

Hi

Thanks Christian

I have a drain in the cellar so that sholdn't be too much of a problem.

Mike

Christian McArdle wrote:
Is it possible\allowed to have the flue exit the house close to
the ground but then have a 90 degree elbow to take the flue
and air intake up the wall to an acceptable height - perhaps
even to the eaves?

No problem. In fact, it is often only possible with a condensing boiler, as
the flue operates at such a low temperature.

You may have trouble getting rid of the condensate in a cellar installation.
Consider a condensate pump, such as a Sanicondens, to pump it away to the
drain. Do not accept the condensate just dripping onto the ground, like most
cowboy installers would have you believe is acceptable.

Christian.

New boiler flue location
 

Hi

thank you all for your help.

Cheers

Mike


John Rumm wrote:
wrote:

just ensure that cellar is not airtight as the burner has to breathe
air in.

I doubt that you can get any modern condensing boilers that are not also
room sealed (i.e. balanced flue).


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

New boiler flue location