Knowledgebase
Are there elevation restrictions? Can vent free be operated as a primary heat source?
Posted by Elite Deals - Chris M. on 24 October 2013 02:47 PM

Our Answer:

Vent free appliances have an elevation restriction of 4,500 feet. Due to the lack of oxygen, they suffer from frequent pilot outages at any higher elevation. These units must also only be used as a supplemental heat source. Because of oxygen depletion, the unit will eventually shut down if used as a primary heat source. I highly recommend the use of a direct vent appliance as a primary heat source and at higher elevations.

From Section Page: Vent Free Fireplace Inserts

ID: vent-free-fireplace-inserts

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