Can I use the semi-rigid dryer duct for my AC supply - Blu-ray Forum

seigneur_rayden · 08-12-2011, 05:21 PM

Hello,
I've been searching but couldn't find anything. As the title says, can I use the semi-rigid dryer duct for my AC supply (for the theater in the basement)?

What are the good and bad in doing so?
If not what would you suggest instead?
The run is short (less than 8 feet). The flexible duct hvac specific sold at Lowes is 8' (which is too long).
I'm on a budget.

I don't have much knowledge in Hvac. So forgive me if I'm asking.
Thanks very much.

hamilton02 · 08-12-2011, 07:55 PM

Are you wanting to add a new run off your duct in the basement? If so your going to need a fitting (spin in). A typical dryer vent is only 4". Your best bet is to get one length of 5 or 6" piece of flex and you can cut it with an exacto to your needed length.

seigneur_rayden · 08-13-2011, 04:28 PM

Quote:

Originally Posted by hamilton02

Are you wanting to add a new run off your duct in the basement? If so your going to need a fitting (spin in). A typical dryer vent is only 4". Your best bet is to get one length of 5 or 6" piece of flex and you can cut it with an exacto to your needed length.

Yes. I already have the fitting going in the main/trunk and the register. I just need to connect the 2. I found a 6" dryer duct at Home Depot.
What is the piece of flex you are referring to?
Thanks for your reply.

hamilton02 · 08-13-2011, 04:38 PM

Well I think we are talking about the same thing then which in that case you can use it. I'm talking about aluminum flex that comes about 3 feet long that you can stretch out to 10 feet. When yoiu said dryer duct I assumed you meant the vinyl type that has the metal ring spiraling around it to keep it somewhat rigid. Your good to go with aluminum flex.

seigneur_rayden · 08-13-2011, 04:41 PM

Question: is it okay to put insulation in the joist where the AC metal/aluminum ducts are?

hamilton02 · 08-13-2011, 04:50 PM

Yes you can tuck insulation inside the joists where you have room to. You can even buy insulated flexible duct as well but it starts to get pricey. Make sure you don't over stuff it as it will loose its function.

seigneur_rayden · 08-13-2011, 04:55 PM

Quote:

Originally Posted by hamilton02

Yes you can tuck insulation inside the joists where you have room to. You can even buy insulated flexible duct as well but it starts to get pricey. Make sure you don't over stuff it as it will loose its function.

I was afraid that when we turn the furnace on, the ducts may get hot and ignite the fiberglass. Again I don't know much about HVAC.

Quote:

Originally Posted by hamilton02

Well I think we are talking about the same thing then which in that case you can use it. I'm talking about aluminum flex that comes about 3 feet long that you can stretch out to 10 feet. When you said dryer duct I assumed you meant the vinyl type that has the metal ring spiraling around it to keep it somewhat rigid. Your good to go with aluminum flex.

The sticker says : "semi-rigid aluminum duct". And it was saying it is for dryer vent. I guess it is the same thing we are talking about.

08-12-2011, 05:21 PM	#1
seigneur_rayden Blu-ray Samurai Member since:Feb 2008 Blu-ray collection:1097 Blu-ray reviews: 12	Can I use the semi-rigid dryer duct for my AC supply Hello, I've been searching but couldn't find anything. As the title says, can I use the semi-rigid dryer duct for my AC supply (for the theater in the basement)? What are the good and bad in doing so? If not what would you suggest instead? The run is short (less than 8 feet). The flexible duct hvac specific sold at Lowes is 8' (which is too long). I'm on a budget. I don't have much knowledge in Hvac. So forgive me if I'm asking. Thanks very much.

08-12-2011, 07:55 PM	#2
hamilton02 Expert Member Top ranked HT gallery Member since:Feb 2011 Location:S. Ontario Home Theater Gallery:59	Are you wanting to add a new run off your duct in the basement? If so your going to need a fitting (spin in). A typical dryer vent is only 4". Your best bet is to get one length of 5 or 6" piece of flex and you can cut it with an exacto to your needed length.

08-13-2011, 04:38 PM	#4
hamilton02 Expert Member Top ranked HT gallery Member since:Feb 2011 Location:S. Ontario Home Theater Gallery:59	Well I think we are talking about the same thing then which in that case you can use it. I'm talking about aluminum flex that comes about 3 feet long that you can stretch out to 10 feet. When yoiu said dryer duct I assumed you meant the vinyl type that has the metal ring spiraling around it to keep it somewhat rigid. Your good to go with aluminum flex.

08-13-2011, 04:41 PM	#5
seigneur_rayden Blu-ray Samurai Member since:Feb 2008 Blu-ray collection:1097 Blu-ray reviews: 12	Question: is it okay to put insulation in the joist where the AC metal/aluminum ducts are?

08-13-2011, 04:50 PM	#6
hamilton02 Expert Member Top ranked HT gallery Member since:Feb 2011 Location:S. Ontario Home Theater Gallery:59	Yes you can tuck insulation inside the joists where you have room to. You can even buy insulated flexible duct as well but it starts to get pricey. Make sure you don't over stuff it as it will loose its function.

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