use old flue with insert but has a horizontal run

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Old 04-12-18, 11:14 AM
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use old flue with insert but has a horizontal run

I would like to install a natural gas fireplace in a lounge on a ground floor of a 3 floor building. The building is 100 years old so has 2 old chimneys, which are probably coal chimneys with concrete blocks. Each chimney is at least 15-20ft away from where the natural gas fireplace would be. Is it possible to run a flue horizontally in the ceiling cavity and then up these old chimneys? I assume a liner would have to be installed?

If not, I assume you cannot put a flue coming out at ground floor level out the side of the house, which would be a shorter route?
 
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Old 04-12-18, 11:31 AM
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15-20' is too long for a horizontal run.

Ground floor means that floor is even with the outside ground level.
If you used a direct vent gas fireplace it would vent several feet off the ground.
 
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Old 04-12-18, 11:34 AM
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Yes, the entrance floor level so a vent would be 8-10 ft above the ground but would also have to run horizontally.
10ft ceilings, so 8ft to the ceiling cavity then 15ft across to the front wall near window area. Aren't there rules on proximity to windows?

Forced air vent is another option I assume?
 
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