My gas hot water heater's flue/vent is very hot to the touch. Is that normal? How hot should it get?

  • 2
    Really hot, enough to burn the crap outta ya... – Jack Aug 29 '15 at 4:21
  • And that's pretty hot! – ojait Aug 30 '15 at 21:56

As you just noted gas exhaust flues get "pretty hot". Which is the reason they should not be in contact with combustible material. Also they need to be 'double walled' if they are passing through an enclosed surface. Also be sure the vents terminate to the outside, but not in close proximity to any windows or return air registers.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.