I wrote a correction that stated that the flex vent is not listed for outdoor use.

I noted an ongoing project fifty feet away that has the same flex vent used outdoors.

I said that the project is ongoing due to a lack of paint. This city requires everything that's not a part of the house to be painted to match the house.

And right next door. They do like their paint and the city is not all that particular about where that paint is placed.
I have a question or two regarding the correction that I wrote.
I have looked at the installation instructions for several manufactures and they are dramatically divergent. One states that the flex vent can be used anywhere a single wall vent is allowed with a reduced minimum distance away from combustibles of 1" and it is not allowed in an attic or crawl space.. Another states that their flex vent is only allowed in an attic or a crawl space while being Listed B-vent.
So far I haven't seen specific verbiage that would prevent an outdoor installation by any manufacturer. I did see one instruction that stated that each end of the "connector" shall be secured to something such as an appliance or a fitting/vent". So by virtue of that instruction, this configuration is not allowed. It would be nice if I knew which company has that rule.
From the beginning I've had the understanding that this hardware is a connector. To be honest, I didn't get interested in flex vent until now....or if I did, I forgot about that.
The easiest way to deal with this vent is to establish your own hard and fast rules. Or I could find/have installation instructions to refer to.......you would have to do this out of the view of the contractor. There's no point in confirming that you're crazy. I'd like to see the look on a contractor's face when you tell him that the flex vent that he used in a garage is Attic Only" Come to think of it, that vent might be labeled "Attic Only". Who do I need to call to make that happen?

I noted an ongoing project fifty feet away that has the same flex vent used outdoors.

I said that the project is ongoing due to a lack of paint. This city requires everything that's not a part of the house to be painted to match the house.

And right next door. They do like their paint and the city is not all that particular about where that paint is placed.
I have a question or two regarding the correction that I wrote.
I have looked at the installation instructions for several manufactures and they are dramatically divergent. One states that the flex vent can be used anywhere a single wall vent is allowed with a reduced minimum distance away from combustibles of 1" and it is not allowed in an attic or crawl space.. Another states that their flex vent is only allowed in an attic or a crawl space while being Listed B-vent.
So far I haven't seen specific verbiage that would prevent an outdoor installation by any manufacturer. I did see one instruction that stated that each end of the "connector" shall be secured to something such as an appliance or a fitting/vent". So by virtue of that instruction, this configuration is not allowed. It would be nice if I knew which company has that rule.
From the beginning I've had the understanding that this hardware is a connector. To be honest, I didn't get interested in flex vent until now....or if I did, I forgot about that.
The easiest way to deal with this vent is to establish your own hard and fast rules. Or I could find/have installation instructions to refer to.......you would have to do this out of the view of the contractor. There's no point in confirming that you're crazy. I'd like to see the look on a contractor's face when you tell him that the flex vent that he used in a garage is Attic Only" Come to think of it, that vent might be labeled "Attic Only". Who do I need to call to make that happen?
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