Furnace Fresh Air Intake Code

Keep bathroom fans and window units turned off.

Furnace fresh air intake code.

Worksafe bc regulated issues such as asbestos abatement can prevent a furnace installation from occurring if not mitigated beforehand and should also be reviewed. Unfortunately the fresh air intake you have described is the second type and does not provide direct combustion air to the furnace room as it is directly connected to the return air plenum for the furnace. 4 the distance separating air intakes from building envelope penetrations that are potential sources of contaminants such as gas vents or oil fill pipes shall be not less than 900 mm. Fresh air intakes are a key component the hvac system utilizes to maintain a safe and comfortable indoor environment in your home.

This section of the mechanical code covers fireplaces fireplace stoves and heaters special appliances which produce heat or are used for cooking gas logs incinerators and crematories wall furnaces floor furnaces direct fired air heating equipment infrared radiant heaters clothes dryers illuminating appliances sauna heaters engine. Air exhausted by the hrv or erv is therefore overall house air not from specific rooms and fresh outdoor air brought into the house is well mixed with the overall house air. Typically the fresh air intake will be located in your attic or ducted to the return side of the home s central air handler. 5 air intakes shall be clearly labelled as such for identification from locations outside the dwelling unit.

This fresh air will enter the air circulation system of the heating system which is separate from the combustion chamber on your furnace. With the existing furnace verify correct vent terminal clearances to doors windows and outside air intakes per code and manufacturer requirements and inspect for deterioration of existing systems. There are two types of airflow furnaces a downdraft or downflow furnace and an updraft or. We will also cover how fresh air intakes play a vital role in determining your.

If left uncorrected these risks may impact proper operation of the equipment or create an unsafe environment for the occupant. Older furnaces often have inefficient recirculation fan motors meaning that distributing the ventilation air requires a 500 to 800 w furnace fan instead of the 30 w fan. Home furnace air intake location. Your home furnace air intake location depends on where the furnace is.