I have an old IdealMexico boiler running in my hall cupboard. Immediately in front of it (but still inside the cupbaord), there's a vent on the ground that goes to the crawl space under the house that in turn has air bricks to the outside. Above the cupboard door there's a vent on the wall allowing air between the cupboard and hall. There's also another vent lower down on the wall, again allowing air between the cupboard and hall.
One time when the boiler was getting serviced, the engineer told me the vents should be removed and blocked up as 'they don't do it that way anymore.'
Is the config of vents I've described above now considered a safety risk and if yes why? I'm assuming it has something to do with changing regs over the years? (the boiler would have been installed in the mid 80s.)
I quite like the idea of the vent in the ground that leads to the drafty crawl space as, to me, if there was a leak emanating from the boiler, there would be decent air circulation to deal with the escaping gas, no?
One time when the boiler was getting serviced, the engineer told me the vents should be removed and blocked up as 'they don't do it that way anymore.'
Is the config of vents I've described above now considered a safety risk and if yes why? I'm assuming it has something to do with changing regs over the years? (the boiler would have been installed in the mid 80s.)
I quite like the idea of the vent in the ground that leads to the drafty crawl space as, to me, if there was a leak emanating from the boiler, there would be decent air circulation to deal with the escaping gas, no?