LPG venting ?

Jules2054

Hi,  I'm having an LPG central heating system put in with a condensing combi boiler.  
My question is do I have to have window vents/fans ? As the surveyor said that's for safety reasons, but I have double glazed windows and dont want them wrecking, unnecessarily.  Also I thought that the vents would be at ground level? 
Is this a new regulation? 
T.I.A. 

Hasbeen

Some one will correct me?but I believe you do not need any vents for a combi boiler. All waste gases go out via the flue.

You need oxygen for boiler but even placed as many do in a cupboard there is sufficient to allow boiler to run safely.

The only time I have seen indoor vents at ground level was for open gas fires.

Ectophile

If it's anything like natural gas condensing boilers, then you don't need any vents.  The boiler is "room sealed".  It sucks air in from outside, burns the gas, then blows the exhaust gases out of the flue.

Rodders53

LPG and Natural gas boilers are identical apart from the burner jets (dimensions).  All modern boilers are room sealed to minimise the chances of and combustion fumes escaping into the room.

Some do require ventilation when housed in cupboards and kitchen units... this is to stop bits overheating though.

Similarly the flue must be sited far enough from opening windows (sometimes known as fanlights), extractor fans and other vent holes that might allow exhaust fumes from the flue to enter the dwelling.

Request a written report from the "surveyor" with specifications and reasons for what is being suggested?

I think you've misunderstood something that has been said.

Do you have other LPG gas appliances?  Google the subject of ventilation requirements for gas boilers, you'll find pdf training manuals for installers with lots of information.

Jules2054

Rodders53 said:

LPG and Natural gas boilers are identical apart from the burner jets (dimensions).  All modern boilers are room sealed to minimise the chances of and combustion fumes escaping into the room.

Some do require ventilation when housed in cupboards and kitchen units... this is to stop bits overheating though.

Similarly the flue must be sited far enough from opening windows (sometimes known as fanlights), extractor fans and other vent holes that might allow exhaust fumes from the flue to enter the dwelling.

Request a written report from the "surveyor" with specifications and reasons for what is being suggested?

I think you've misunderstood something that has been said.

Do you have other LPG gas appliances?  Google the subject of ventilation requirements for gas boilers, you'll find pdf training manuals for installers with lots of information.

No, no other appliances on lpg! The house is all electric. 
Thanks for the info, will do some more research! 

Jules2054

UPDATE:
The vents turned out to be trickle vents in my windows, and the fan was an extractor fan for the kitchen. Didn't need one for the bathroom, as already have one fitted. 
The boiler flue was positioned straight up into my loft and out of the roof. 
Thanks for all your input and advice! 
Jules x