Window Clearance?

[JimmyJ]

Hi folks

Quick question, we are looking at building a new house and was curious on the clearance I require for the vent from a window? Is there a rule of thumb?

Thanks

 

[AVIVIII]

It depends on a lot of things, but most importantly, your town's building inspector / fire code officer. I would ask them. If you are planning on putting one somewhere, I would say give it 4' and that will cover all your bases.

 

[JimmyJ]

Thanks.....I was thinking around 3 feet but I should be fine space wise to use the 4 feet.

 

[smoke show]

nfpa 211 standards


10.4.5 Mechanical draft systems shall not be required to comply
with 10.4.1 and 10.4.3, provided they comply with the following:
(1) The exit terminal of a mechanical draft system other than
a direct vent appliance (sealed combustion system appliance)
shall be located in accordance with the following:
(a) Not less than 3 ft (0.91 m) above any forced air inlet
located within 10 ft (3 m)
(b) Not less than 4 ft (1.2 m) below, 4 ft (1.2 m) horizontally
from, or 1 ft (305 mm) above any door, window,
or gravity air inlet into any building
(c) Not less than 2 ft (0.61 m) from an adjacent building
and not less than 7 ft (2.1 m) above grade where located
adjacent to public walkways
(2) The exit terminal shall be so arranged that flue gases are
not directed so that they jeopardize people, overheat
combustible structures, or enter buildings.
(3) Forced draft systems and all portions of induced draft systems
under positive pressure during operation shall be
designed and installed to be gastight or to prevent leakage
of combustion products into a building.
(4) Through-the-wall vents for gas appliances shall not terminate
over public walkways or over an area where condensate
or vapor could create a nuisance or hazard or could
be detrimental to the operation of regulators, relief
valves, or other equipment.

some manufacturers create their own guidelines.
my .002