Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [exhaust-vent]

213 questions
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3 answers

Why do gas water heater exhausts have an air gap before the chimney?

Every conventional (i.e., non-direct-vent) gas water heater I have seen has a roughly 1" vertical gap between its exhaust port and the exhaust vent (or "chimney"). See photo below. What function does that gap serve? How does the gap not pose a…
feetwet
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Is it safe to use Category 1 80,000BTU furnace with 2 inch PVC exhaust?

A contractor just finished installation of new HVAC system with a category 1 furnace (model: GMES800805CNAA). He originally used a reducer to connect 4 inch exhaust to a 2 inch PVC pipe. He claimed that he has done so in the past and it worked well.…
Dimi
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What is the best way to clean your clothes dryer exhaust?

My dryer exhaust goes out of my laundry room, into my attic, and runs for about 15 feet before it gets outside. Over time the lent has built up quite a bit. What is the best way to clean this? The sections in the attic are connected via duct…
Jason
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Gas clothes dryer is venting into the crawl space

I have been living in a house in Southern California for 18 months and while crawling around under the far end of the house I found that there is about 2 inch deep lint over a 200 sq ft area where my gas clothes dryer vents into this crawl space. I…
Dave
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Is it possible to vent two exhaust fans through a single wall penetration?

I have two bathroom exhaust fans that need to be vented out of the house, but I'd like to do it using a single wall penetration. Is there a code compliant, safe way to do this? Both bathrooms are on the same level of the house. There is no…
Tester101
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What are my options for venting a bathroom exhaust fan?

I would like to install a fan in our bathroom which currently has none. However, I'm very confused regarding the best approach for this. Above the bathroom is an attic space. I have read that venting out the gable side of the house is preferable…
DCNYAM
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Using old vent pipe as TV antenna

I recently replaced a house trap, and as a result, I have a leftover vent pipe that runs from my basement up through my roof. Would it be possible for me to somehow connect a coax cable to the pipe so that it acts as an over-the-air TV antenna? If…
Andrew
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Why is a gas furnace vented but a gas dryer is not?

I live in a house in Ohio and I have four appliances powered by natural gas: furnace, water heater, dryer, and kitchen range. Of these, only the furnace and water heater are vented to the outside of the house (chimney stack). In this context,…
user4302
8
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6 answers

Can I modify the vent from my high efficiency furnace to prevent possible damage to the exterior of my home?

is my high efficiency furnace vent installed properly? I'm based in Toronto, Canada. In some recent cold winter weather, the exhaust is causing a lot of ice buildup on the surrounding brick. To my limited knowledge, lots of freeze / thaw cycles for…
Shan Plourde
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Can I vent a bathroom through the soffit if I use a product designed for it?

I am looking for some clarification. I have been reading about installing an exhaust fan in a bathroom, and I have been reading that you should always vent to the outside, but I continue to read that you should never vent through the soffit. I am…
Nick Nack
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Range vent hood pipe

What type of pipe is best for venting my stove hood? Does flexy hose work or should it be hard pipe only?
cynthia
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Installing bathroom exhaust fan: what to do with vapour barrier and insulation?

I'm adding a bathroom exhaust fan, which is being mounted in the ceiling of the bathroom (in the attic) and venting out through a vent in the wall. right now, there is a vapour barrier (paper) between the insulation in the attic and the drywall. I…
gregmac
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Can I route coaxial cable for tv through a gas fireplace?

Cable guy told me to drill a hole from outside in right through sheet metal in gas chimney to connect tv to cable mounted on mantle?
joe
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How do I prevent ice stalagmites from building up on the furnace exhaust?

I have a high efficiency furnace that exhausts via a pvc pipe out the side of the house, the trouble is the moisture from the exhaust forms an ice stalagmite in my driveway in the cold weather. Are there ways to prevent this ice from building up…
Tester101
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Do you to block a unwanted 4 inch hole or reuse it for something else?

Have 4 inch hole was made by builder for no reason and went unnoticed for long time as the hole was in the side wall of the House. the hole is through a basement wall. How can I permanently block the whole. I am ok to keep vent mounting block as is.…
PowerTech
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