Boiler flue termination

This is a flue from a 150000 BTU boiler.
Improperly terminated, no cover. Any other comments would be appreciated.

too close to window

That was my initial thought. But if what my HVAC tech provided me with is correct, then that is not the case. (See attached).

This is what I go by for my area, yours may be different.


This doesn’t look 4’ below window from here, it’s close.

Marcel, what document is this page from?

Stupid not to go to the roof.
Are they pretending it is a cat 4?
The vertical run needs to be 125% longer than the lateral.
Is it?

Ontario Gas utilization code

That was for direct vent but this is not direct vent as far as I know.
Have more direct vent code here however…

2006 International Residential Code for One and Two Family Dwellings
Part V- Mechanical
Chapter 18 Chimneys and Vents
Section M 1804 Vents

M1804.2.5 Direct vent terminations.
Vent terminals for direct-vent appliances shall be installed in accordance with the manufacturer’s installation instructions.

M1804.2.6 Mechanical draft systems.
Mechanical draft systems shall be installed in accordance with their listing, the manufacturer’s installation instructions and, except for direct vent appliances, the following requirements:

  1. The vent terminal shall be located not less than 3 feet (914 mm) above a forced air inlet located within 10 feet (3048 mm).

  2. The vent terminal shall be located not less than 4 feet (1219 mm) below, 4 feet (1219 mm) horizontally from, or 1 foot (305 mm) above any door, window or gravity air inlet into a dwelling.

  3. The vent termination point shall not be located closer than 3 feet (914 mm) to an interior corner formed by two walls perpendicular to each other.

  4. The bottom of the vent terminal shall be located at least 12 inches (305 mm) above finished ground level.

  5. The vent termination shall not be mounted directly above or within 3 feet (914 mm) horizontally of an oil tank vent or gas meter.

  6. Power exhauster terminations shall be located not less than 10 feet (3048 mm) from lot lines and adjacent buildings.

  7. The discharge shall be directed away from the building.

Oil or gas?
Before you all go off i had to ask .
Some oil fired boilers have a power vent

At a 150000 BTU’s I would not care what **Code **says. My recommendation is to run it up to the roof PERIOD or at least pass the neutral pressure plane of the Home.
Many investigations I have done revealed fumes going back into the home and there was no violation of minimum code.