Can I vent furnace Flue pvc thru garage wall


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Old 01-01-06, 01:41 PM
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Can I vent furnace Flue pvc thru garage wall

I am installing a new 92 efficient forced air furnace .I have to run the pvc exhaust and intake thru both side of garage to vent outside..I will attach to unistrut at garage ceiling.What is required for breaching fire wall on both sides of garage?I can not use the old flue as it has a bosch tankless which cannot share vent with power vent as new furnace has.Any advise would be appreciated as i want to install safely and carefully.
 
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Old 01-01-06, 03:59 PM
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Check your installation manual for vent lengths first. You may have to upsize to 3" to go that far. Typically, a 90 degree elbow adds 10 feet of length to the run. As long as the garage is heated above freezing you can run the pipes through there. A high efficient furnace produces moisture that is carries through the vent to the outside. It must be pitched back toward the furnace so that when it condenses it runs back to the furnace and down the drain. In most cases, breaching the firewall with a vent is allowed but check your local codes first.
 
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Old 01-01-06, 03:59 PM
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Best to check local codes on this.
 
 

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