from Nashville, TN asked:
September 19, 2019
Do you absolutely need to use an outside combustion air kit for the fireplace if there is enough ventilation in the house through a cracked open window, or something similar? And if an outside air kit is needed, what is the maximum length of duct that can be used?
Most fireplaces do not require an outside air kit, but your local jurisdiction may require it.
Tyler M. - NFI Master Hearth Professional
on September 19, 2019