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Old 09-03-2018, 08:54 AM   #1
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Need help extending HE furnace vent

Hello. I just built a pool deck and am putting a hot tub on it. Of course with the height of it and where I can put hot tub I will be right at the current vent for my furnace. Hot tub will be within a few inches of the vent, and in winter snow will now be on deck and hot tub which will block it as well. No good. Need to move the vent. I was wondering if I can take vent cover off, and some long sweep 90ís and 5 ft of 2 inch pipe, another 90 and put cover back on. I plan to strap pipe to house and paint to match siding color. My manual says Iím allowed up to 65ft for pipes. Right now just sections of pipe total 13ft from wall to furnace, I did round upo the nearest ft when measuring sections between fittings. Exhaust has 1 90 elbow and 3 45ís, intake has 5 45ís and 2 90ís and 1 long sweep 90. So if Iím right my exhausts is at 30.5 ft and intake is at 37.5ft. Which I should be able to add my extensions and be under 65. But manual also says that maximum number of elbows is 6, and my intake allready has more than that. Is my idea do able/ safe? What are my other options? I would need to wrap the 5 ft extensions with insulation? I do have a condensate pump in basement. Thanx for any help I can get. I canít afford to have a ďproĒ do it otherwise I would. I can glue pipe just fine, just want to make sure I wonít cause any issues
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