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I have a Heatilator Model ST36C Fireplace. Can I use a ventless gas log with this unit ? I have read that Heatilator doesn't recommend using ventless logs in some of their fireplaces. Why?
Posted by Elite Deals - Chris M. on 24 October 2013 02:45 PM

Our Answer:

Some models of fireplaces, including this model, do not allow for use of ventless gas logs because they are not insulated to stand up against the extra heat. Because the damper is closed during operation of ventless gas logs, no dilution air is pulled into the fireplace opening to cool it. This can cause the firebox to get significantly hotter than it would when being vented. In turn, this can cause clearances to the wooden framing behind the fireplace to be incorrect and will eventually lead to a fire. Overall, only if the appliance specifically states that it can be used with ventless gas logs can you do so.

From Section Page: Ventless Gas Logs

ID: ventless-gas-logs

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