Our furnace is in a closet on the first floor. There are two vents in a side wall of the closet. We recently hired a contracting company to build another closet in the unused space next to the furnace closet, which is approximately 6.5 feet by 3 feet, opened by bifold doors. The vents to the furnace closet are now in the newly constructed closet. We had discussed the ventillation with the contractor, and if the vents should be moved, and the contractor was not concerned. Because he has been in this business for 20 + years, we did not question him. But, I am now concerned after my best friend, who is a real estate agent, said something about carbon monixide poisoning. How do I know if the ventillation is adequate or if additional vents should be added.
Thanks in advance.