Welcome to Q&A for Home Maintenance Q&A section, where you can ask questions and get answers from me and other members of the community.

Spam, self-promotion, questions with abusive, inappropriate language, and irrelevant questions will be deleted.
All of the questions are moderated!

You'll be notified when your question is answered. Please reply with Feedback to share whether a solution worked or didn't work. Thank you!

Connect on Google+
Find on Google+ Local

Access furnace and water heater room from garage

0 votes


GP says:
September 26, 2011 at 6:41 am
Doing some renovation to a basement with an integral garage and would benefit with having the furnace/HW room being accessed from garage. Not having access to IBC books I am questioning whether code would allow that and if they did what are the requirements to the door would be.
asked in Car Garage by darekrudy (21,730 points)
Share this question on your favorite network.

1 Answer

0 votes


  Hi GP,
    Requirements for the furnace and water heater room accessible from an attached garage depend on the appliances type. Could you provide me with the following information:
  1. furnace type – regular (chimney / metal vent pipe through the roof) or high efficiency / condensing type (PVC / ABS vent pipe)
  2. where is the furnace getting combustion air from – from within the house or from the exterior
  3. same questions for the water heater – regular tank type with single vent pipe (metal or PVC) or high efficiency / condensing type (or tankless) that uses exterior air for combustion
  4. if at least one or both appliances are regular type what is their BTU’s rating (it should say on their manufacturer’s tag), how big is the room behind the anticipated closet wall and what is its purpose (sleeping area?)
answered by darekrudy (21,730 points)