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How to Choose the Right Venting for your Fireplace

How to Choose the Right Venting for your Fireplace

Whether you just bought a fireplace, are planning to buy a stove, or just need to replace the pipe for an old unit in your house, choosing the right venting components is critical for both proper performance and safety. In this article we will discuss the basics about the different types of vent and chimney pipe that are used on these hearth appliances.

How to Choose the Right Venting for Your Fireplace

New Fireplace, Insert, or Stove
Every new vented gas fireplace, wood burning fireplace, vented gas or wood fireplace insert and stove have specified requirements for the proper venting components as determined by the manufacturer.

Every new vented gas fireplace, wood burning fireplace, vented gas or wood fireplace insert and stove have specified requirements for the proper venting components as determined by the manufacturer. Specific brands or types of pipe apply to a particular category. For example, you would not use the same pipe on a wood stove as you would for a vented gas fireplace. Purchasing the correct chimney components is absolutely essential. A frequent misconception we see often is a homeowner or contractor assuming that existing chimney pipe from an old fireplace can be used on a new model, especially if the pipe diameter used on the new unit matches the chimney that is already in place. However, this is a truly rare occurrence because most old chimney and vent systems are no longer used with new units.

About the Author

Tyler McLellan

With a Bachelor's Degree in Journalism from Ole Miss, Tyler has worked here at eFireplaceStore since June, 2011. He is one of our National Fireplace Institute (NFI) certified technicians. Additionally, he is a Master Hearth Professional, which means he is certified in all three fields — wood, gas and pellet.

When not at work, he enjoys spending time with his wife, Amber, and 7 children; Ashley (18), Nathaniel (14), twins Isaac and Jeremiah (10), David (5), Jude (4), and Andy (1).

Customer Q&A with Product Specialists

Terry L. asked:
Would it be okay for the exhaust vent to be elbowed upwards at the end?
Would it be okay for the exhaust vent to be elbowed upwards at the end?
Typically, yes.  You would need to consult the owners manual for your specific appliance to see the recommended vent configuration.
Answered by: Aaron D.

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Christian C. from Miami asked:
Would it be okay for the exit venting for the LP fireplace to be installed 3 feet above my heat pump?
Would it be okay for the exit venting for the LP fireplace to be installed 3 feet above my heat pump?
There will be a chart in the installation manual that describes the proper clearances for the venting on the exterior of the home.
Answered by: Aaron D.

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Mark from Victoria asked:
Can two collinear 3" vent pipes be put up a 6" chimney flue?
Can two collinear 3" vent pipes be put up a 6" chimney flue?
Most likely not. The 3" liners have an inner diameter of 3" so the OD is about 3-1/4". You may need to find an appliance that uses 2" fresh air and that would still be a tight fit.
Answered by: Brian L.

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Mike from Gulf Breeze, Fl asked:
My wood-burning fireplace lets in a lot of smoke, or smell of smoke. Is it possible to add a vent in the chimney chase for additional venting?
My wood-burning fireplace lets in a lot of smoke, or smell of smoke. Is it possible to add a vent in the chimney chase for additional venting?
Adding a vent to the chase itself will not fix the cause of this issue; you may need to extend your chimney's height, install a specialty high-wind chimney cap, or, in a worst-case scenario (due to cost), install a chimney fan.
Answered by: Tyler M. - NFI Master Hearth Professional

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