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Auxiliary heater

Tiny
ITBROKE
  • MEMBER
  • 1996 FORD E-SERIES VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
What is the proper I.D. Of the auxiliary heater hose? Inner and outer diameter. On my vehicle this diameter appears to be 5/8" but the outside is 1". Typically replacement hose is 5/8" inside and 3/4" outside. Could be this was changed from the factory installation but maybe there was a reason for 1" outside diameter from the factory that is important for the rear heater. Insulating value maybe?
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Monday, October 22nd, 2018 AT 1:31 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,110 POSTS
Yes is sound like it because the ID is 5/8's can you shoot a picture and upload it so I can be sure? Cheers, Ken
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Friday, October 26th, 2018 AT 12:38 PM
Tiny
ITBROKE
  • MEMBER
  • 56 POSTS
Thank you for your reply Ken. Yesterday I had to get in to town so after conferring with a mechanic or two we opted for 5/8" ID and 3/4 OD. This seems to be a common automotive application so the plan is to put pipe insulation on these auxiliary heater lines to boost the heat in the van. Thank you for your response. As long as I have to drive these old beaters, I will probably be looking for more help.
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Friday, October 26th, 2018 AT 1:01 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,110 POSTS
Excellent, we will be here for you. Use 2CarPros anytime, we are here to help. Please tell a friend.

Cheers, Ken
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Saturday, October 27th, 2018 AT 10:21 AM

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