/r/hvacadvice

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Was told that this drain should face up. True?

139 upvotes • xscni

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Moved to a new house, what are these?

104 upvotes • Pottetan

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Just bought house, seems like there should be a 4 inch filter here?

91 upvotes • somehockeyfan

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How did these two pipes that are connected to a gas furnace pass code inspection? Shouldn’t one be pointed up (exhaust) and one be pointed down (intake) with a certain required distance between the two?

79 upvotes • hggbvfffhjccv

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Is this the right direction?

70 upvotes • GandalfTheHeretic

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Trying to install a Microair soft start but my unit looks like it has a lot more going on. Can someone tell me what are all these components?

61 upvotes • ScubaLooser

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Installer wants me to sign a liability waiver after purchase for a system they recommended I install.

58 upvotes • watchthenlearn

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Rate my install

53 upvotes • socalpipefitter710

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What’s broken here?

51 upvotes • Puzzleheaded_Tip_821

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Oversized suction line - with a kink in it. What should I do here?

47 upvotes • upvotes_cited_source

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Was told that this drain should face up. True?	139	xscni
Moved to a new house, what are these?	104	Pottetan
Just bought house, seems like there should be a 4 inch filter here?	91	somehockeyfan
How did these two pipes that are connected to a gas furnace pass code inspection? Shouldn’t one be pointed up (exhaust) and one be pointed down (intake) with a certain required distance between the two?	79	hggbvfffhjccv
Is this the right direction?	70	GandalfTheHeretic
Trying to install a Microair soft start but my unit looks like it has a lot more going on. Can someone tell me what are all these components?	61	ScubaLooser
Installer wants me to sign a liability waiver after purchase for a system they recommended I install.	58	watchthenlearn
Rate my install	53	socalpipefitter710
What’s broken here?	51	Puzzleheaded_Tip_821
Oversized suction line - with a kink in it. What should I do here?	47	upvotes_cited_source