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

Gas water heater inside the cabinet

0 votes


Laura Courier says: 
 I have a question, Our gas water heater is in a cabinet inside. The cabinet is old and has venting grills on the bottom and top of the door. When we had the water heater replaced a few years ago, it was properly vented to the outside. We are going to replace the cabinet now and I was wondering, do we need to vent the door again now that the heater has been vented to the outside?
I hate to put holes in the new door if it is unnecessary. If we do need to vent the door, do you know what size the holes need to be for code? Currently they are 14in wide and 8in high. I would appreciate your expertise on this!
asked in Gas Water Heater by darekrudy (21,730 points)
Share this question on your favorite network.

1 Answer

0 votes

Hi, unfortunately you do need those holes, if you follow this link, I’ve explained everything in more detail – Combustion Air for Fuel Burning Appliances. Proper venting of your water heater and your safety depends on air supplied for its combustion.

If your water heater closet / cabinet has an exterior wall (to the outside), there’s an attic above or basement / crawlspace underneath, you’ll have more choices which could save your new door. Let me know or check the post link above.

answered by darekrudy (21,730 points)