Hi,
A friend of mine is having cavity wall insulation done. She had a
company come in to get an estimate and she was told that as she had an
open fire she would have to pay an extra £60 for the installation of a
core vent. When she questioned this she was told that it was the law.
Could someone tell us if this is the case or if the guy was just trying
to get the most out of her.
Thank you for your help.

wrote:
Hi,
A friend of mine is having cavity wall insulation done. She had a
company come in to get an estimate and she was told that as she had an
open fire she would have to pay an extra £60 for the installation of a
core vent. When she questioned this she was told that it was the law.
Could someone tell us if this is the case or if the guy was just trying
to get the most out of her.
Thank you for your help.

I'm guessing here, but I would think he is reffering to the need to
have a vent in the room to provide air so the fire can draw properly.

I wouldn't be at all surprised if it was a building regs requirement
(we were told we would need something similar for our wood burner
(though in the event the co forgot to fit it, and we didn't remind them
(it draws fine))

If this is going into a cavity wall either as a new fit or to replace
an existing vent, then £60 doesn't sound too bad if it includes supply
and fit (especially if they have to start from scratch).

It will I presume need to be built like a tunnel through both walls.
Don't understand why this doesn't count as bridging the gap and
potentially cause damp problems, then again I don't understand why
cavity insulation doesn't do that either.

wrote in message
ups.com...

wrote:
Hi,
A friend of mine is having cavity wall insulation done. She had a
company come in to get an estimate and she was told that as she had an
open fire she would have to pay an extra £60 for the installation of a
core vent. When she questioned this she was told that it was the law.
Could someone tell us if this is the case or if the guy was just trying
to get the most out of her.
Thank you for your help.

I'm guessing here, but I would think he is reffering to the need to
have a vent in the room to provide air so the fire can draw properly.

But what difference would cavity wall insulation have on ir gong into a
room?

Mary

On Thu, 27 Jul 2006 11:16:57 +0100, "Mary Fisher"
wrote:

|I'm guessing here, but I would think he is reffering to the need to
|have a vent in the room to provide air so the fire can draw properly.
|
|But what difference would cavity wall insulation have on ir gong into a
|room?

Bunging up the cavity with fiber will reduce draughts round joists, between
floors and under floors. At least my filling my cavities with foam did
that.

--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
method of accessing usenet. GG subscribers would be well advised get a
newsreader, say Agent, and a newsserver, say news.individual.net. These
will allow them: to see only *new* posts, a killfile, and other goodies.

But what difference would cavity wall insulation have on ir gong into a
room?

It can reduce the amount of natural parasitic ventilation below a safe level
for an open flued appliance.

Christian.

We where asked to sign a disclaimer saying we didn't have any gas or open
fires when we had our walls done a couple of months ago, we where also sent
a 10yr guarantee shortly afterwards.

Pete

"Christian McArdle" wrote in message
...
But what difference would cavity wall insulation have on ir gong into a
room?

It can reduce the amount of natural parasitic ventilation below a safe
level
for an open flued appliance.

:-)

Can we have that in English, please?

Mary

Christian.

wrote:
Hi,
A friend of mine is having cavity wall insulation done. She had a
company come in to get an estimate and she was told that as she had an
open fire she would have to pay an extra £60 for the installation of a
core vent. When she questioned this she was told that it was the law.
Could someone tell us if this is the case or if the guy was just trying
to get the most out of her.
Thank you for your help.

=================

If your friend's floor is floorboards (not concrete) and there is an air
brick on an external wall ventilating the under floor space then she could
ask if a floor vent can be fitted instead of having a 4 inch diameter hole
bored through the wall. As far as I am aware the regulations still permit
this.

If your friend's floor is floorboards (not concrete) and there is an air
brick on an external wall ventilating the under floor space then she could
ask if a floor vent can be fitted instead of having a 4 inch diameter hole
bored through the wall. As far as I am aware the regulations still permit
this.

Nobodies asked so I will, what is this to do with cavity wall insulation?.
Does this replace an existing vent or do they make a new hole?

Dave

"gort" wrote in message
news

If your friend's floor is floorboards (not concrete) and there is an air
brick on an external wall ventilating the under floor space then she
could
ask if a floor vent can be fitted instead of having a 4 inch diameter
hole
bored through the wall. As far as I am aware the regulations still permit
this.

Nobodies asked so I will, what is this to do with cavity wall insulation?.
Does this replace an existing vent or do they make a new hole?

Sorry, I didn't read this post before I asked.

When we had cw insulation it was never brought up. We don't have open fires
(i.e. solid fulel) but we have gas fires in two rooms and they need air just
the same.

We weren't asked about fires at all.

Mary

Dave

Mary Fisher wrote:
"gort" wrote in message
news
If your friend's floor is floorboards (not concrete) and there is an air
brick on an external wall ventilating the under floor space then she
could
ask if a floor vent can be fitted instead of having a 4 inch diameter
hole
bored through the wall. As far as I am aware the regulations still permit
this.
Nobodies asked so I will, what is this to do with cavity wall insulation?.
Does this replace an existing vent or do they make a new hole?

Sorry, I didn't read this post before I asked.

When we had cw insulation it was never brought up. We don't have open fires
(i.e. solid fulel) but we have gas fires in two rooms and they need air just
the same.

We weren't asked about fires at all.

Mary
Dave




I have had three estimates for cavity wall and loft insulation recently.
One gave no information, the second was very informative the third a
little info. The informative one checked the fire, said as it was below
X KW output (forgotten the figure) it was ok. He also said that as I had
2 vents, one for a toilet the other in the cloak room when the
installers came they would check that they were sleeved core vents, if
not they will charge £45 to replace them. Also to thoroughly check
where all cables and pipes pass through the walls that both inside and
out are sealed to prevent the insulation escaping. As his price was only
a couple of quid above the cheapest he will get the job.