That is something I was thinking of doing, thanks for confirming my idea isn't totally off the wall!
I was happy to find out that the boiler is setup that way. I have lived in a few houses before that had the gas fired water heater and the boiler/furnace in the garage and it was a concern of mine when making fumes like from painting.
One house I lived had a forced air system with the furnace in the garage and if I painted or welded in there without opening the garage door, it would pull fumes into the house!
Originally Posted by Mr T
That makes it alot easier...
In the case of the piping/valving you could build a box that covers everything and sticks out a foot or so. have it open into the mech room for air flow but design it so it slides out of the way if you need to get in there to work on the system which shouldnt be often. You can paint it up to match the garage walls and it shouldn't be too noticable.