Is this a good idea?

I recently had a garage built that is attached to the house. The bonus space above the garage is unfinished with the plumbing and electrical roughed in. In the basement, where my stove is, there are two PEX tubes that go up to the bonus space that aren't connected to anything. Right now they are sealed but as I was down there cleaning up the stove this morning I was wondering if unsealing the tubes and pulling cold air from up above the garage would be a good idea. I don't have any kind of cold air intake or anything like that in the basement so I thought this might help. Then of course I was wondering if this would cause any safety concerns. The bonus space is only accessible from the 2nd floor of the house and there is steal fire rated door that closes it off at the end of the hallway.

Would this be a good idea or could there be some kind of safety risk introduced if I were to unseal one or both of the tubes?

fossil said:

I really don't think it will do anything at all. What are the tubes doing there?

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They are for the heat above the garage when we finish it. Right now they aren't connected to anything on either end but eventually we'll finish the space and it will be on a separate zone.

Simonkenton said:

What is the diameter of the PEX tubes?

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That's a good question, I'm guessing probably 3/4 of an inch if not an inch. I'll check tomorrow but it's orange PEX. They ends up above the garage are sealed with tape. When I had the stove going on Saturday I could feel a little bit of a draft from one of the tubes, there was nothing at all from the other one. The tape on that one tube is probably not completely sealed.

Ok, does not sound like a good idea. That is pretty much what I figured right after the idea popped into my head.