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Old 01-01-2013, 09:17 PM   #1
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Reznor XL75 nat gas heater install questions


I've got a hanging heater and am trying to figure out the best way to vent. Can this be vented through the gable wall and then through a chimney pipe up over the roof? The heater is in the front corner of my garage and I don't want a chimney going out the front of the roof if I can avoid it. It has an oval vent, 4" x 5.5". Do I need an adapter or can I squeeze a round pipe over the oval? I have looked for a manual for this unit but have been unsuccessful. Any advice will be appreciated! Thanks

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Old 01-01-2013, 09:23 PM   #2
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Reznor XL75 nat gas heater install questions


you need the manual..... and yes you can vent it through the roof.... follow instructions in manual for venting......

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Old 01-01-2013, 09:24 PM   #3
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Reznor XL75 nat gas heater install questions


https://www.rezspec.com/index.php?pa...0014&mod_files[currpos]=54
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Old 01-01-2013, 09:24 PM   #4
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Reznor XL75 nat gas heater install questions


hold on.....just re read your post...what do you mean through a gable wall then up over the roof..... sounds not right .......
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Old 01-01-2013, 10:33 PM   #5
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Reznor XL75 nat gas heater install questions


I tried their website and could not find the manual. I emailed them today for a copy- hopefully they will send me one. I want to exit the vent horizontally through the side wall then connect to a chimney pipe outside the garage. Thanks
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Old 01-02-2013, 09:53 PM   #6
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Reznor XL75 nat gas heater install questions


Found the manual, I am going to vent it horizontally through the wall then up over the roof on the outside of the building. It has a 5" oval, do you think it would hurt to downsize the vent to a 4 inch chimney?
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Old 01-03-2013, 04:51 AM   #7
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Reznor XL75 nat gas heater install questions


If the furnace breech is 5 inch, then code prohibits reducing the size of the chimney to 4".

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