Are all these duct taping on the furnace normal

furnaceventilation

I just bought the house, and I saw these duct tapes on my furnace in the basement (I guess it's not exactly a furnace, but also an air ventilation system since it's turning on in summer). Now what are all these duct taping? is this normal, also should I retape them since they have mostly came loose, and cold air is blowing out of the holes.

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Best Answer

Perfectly normal sealing of penetrations by wires. Looks like a first rate installation.

BTW you have a tee fitting on the condensate line which is well placed to allow cleaning of the line to clear it of algae or wet dust. Many pretty good installations do not have this feature (mine doesn't). It seems to me that you should gently insert a rubber stopper in the open end. This would prevent something falling in and would reduce leakage of air out the condensate drain. At the very least put a loose cover over it to prevent something falling in.

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