No he's not. Removing the air from a kitchen does not mean it is removed from a living room. Common sense or not.
Blocked chimney? Gas fire not drawing
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The replacement air has to come from somewhere. Where do you suggest it comes from if all external doors and windows are closed. ?
I've already told you Bernard, if you don't want listen that's up to you. You've already been given more information than you know what to do with.
If you're just looking for another argument on the plumbing forum look elsewhere. I only do that on the GD.
If you're just looking for another argument on the plumbing forum look elsewhere. I only do that on the GD.
If it's a non new build and fundamentally not an air tight property then SF stoves under 5 KW don't need an air vent.
See http://www.stovefittersmanual.co.uk/articles/do-i-need-an-air-vent-for-a-wood-burning-stove/
And
http://www.defrastoves.com/userfiles/Ekol Crystal 5.pdf
(The installation manual for the 5KW stove I had installed at my previous house)
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Site conditions may dictate otherwise!! Note "Normally".
I've been told that the chimney flue is "clay pot" lined. Looking up the flue it appears to be several cylindrical sections placed on top of one another.
On the first service of our inherited gas fire we were told that we needed to open the existing vent (which was already there, but which had been blocked off with a piece of hardboard by the previous owner). However, we used a different RGI for our second service and he told us that there was no such requirement because the output of the gas fire was less than 5kw. The reason why I asked was because this question of how much greater than 5kw the output might be did arise, but no, there was no discussion with the salesman of just how we might be able to achieve additional output for any length of time.
I don't suppose there would be any harm in having a closeable air vent, even if there's no legal requirement to have any vent at all?
I have two 5kw burners in two lounges. They are rated at 5kw for burning coal. I only burn wood in them so therfore the output is lower.
Mi's state that being under 5kw they do not need any ventilation.
In real life however, the rooms only need about 1.5kw to heat them, so, when they are lit the rooms get too warm!
So now we have to open the door to let the heat out! Therefore we have the biggest air vent in the room wide open.
The mi's will tell you if the appliance does or does not need ventilation. However, if it says the appliance does not normally need ventilation, but fails a spillage test, then ventilation will be required or flue lining etc.
It really is a job for a trained professional.
Mi's state that being under 5kw they do not need any ventilation.
In real life however, the rooms only need about 1.5kw to heat them, so, when they are lit the rooms get too warm!
So now we have to open the door to let the heat out! Therefore we have the biggest air vent in the room wide open.
The mi's will tell you if the appliance does or does not need ventilation. However, if it says the appliance does not normally need ventilation, but fails a spillage test, then ventilation will be required or flue lining etc.
It really is a job for a trained professional.
what if you leave the extractor fan on for a while in a house with no chimney and have the doors and windows closed, would you suffocate to death after all the oxygen has been sucked out the house? or perhaps the house would implode
After a while the pressure difference between inside and outside would be greater than that which the fan could over come and thus there would be no more air moved out by the fan.
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Bernard please stop giving what could be construed as gas advice.
You have been asked before.
Mod.
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Not physically possible unless the whole house was hermetically sealed.
There will always be some air getting into a building somewhere, ergo that air will be removed by the extractor. Sorry to be pedantic.
Maybe the conversation should be changed to physics and how convection works and hot gases rise etc?
An architect in the USA commented that some ecologically designed houses had to be altered when the differential air pressure had a noticable effect on the opening of external doors.
Either you misunderstood the RGI, or he got it wrong. The rules for SF and gas are different. SF requires a vent fir a fire with a nominal OUTPUT of 5Kw+. A gas fire needs a vent for an INPUT of 7Kw+. (There are additional rules for DGF fires, and for very modern homes that have very little adventitious ventilation)
If you want to play the trump card go find a Whist Drive,
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