So I’m finishing up the install on my FPX 44. We had the blower (intake) unit mounted under the house, and I want the duct to run to the outside. Problem is, it’s about a 28’ run. I made an adapter to go over the front of the blower/intake box to adapt 9†pipe. Book says max 15’ run for 6†pipe, 25’ run for 8†pipe. So I just went with 9â€.
The chimney pipe is cooled pipe and the intakes/pipe are 7â€
So my question is this: If I’m running 9†for the intake, and choke it down to 7†for a roughly 8' run right at termination to the outdoors for a groovy intake that came with the chimney cooling vents (I don’t have to use those so I have them left over) am I choking down the CFM needed? I mean, really?
I’d almost rather like to use the 7†intake/vent that came with the stove (this WILL NOT be seen as it will be under my deck) because it’s a bit smaller and already set with a rain guard and screen on it.
The anal-retentive side in me wants to run the 9†duct all the way through the wall, but I"m concerned with putting a hole that big in my concrete block. Plus at this point I've been nickel and dimed with building my house and I'm not interested in getting a custom 9" intake made unless I need to. Plus 9" aluminum flex duct I'd have to do a bit of searching to find.
Am I thinking too much? I'm just going to have a go with the 7" anyway, but wanted to see if I'm going to be disappointed and need to swap it out anyway.
I'm heating a 4,100 square foot house and the unit is in a room with 25' ceilings, so I'm going to need all the CFM I can get.
The chimney pipe is cooled pipe and the intakes/pipe are 7â€
So my question is this: If I’m running 9†for the intake, and choke it down to 7†for a roughly 8' run right at termination to the outdoors for a groovy intake that came with the chimney cooling vents (I don’t have to use those so I have them left over) am I choking down the CFM needed? I mean, really?
I’d almost rather like to use the 7†intake/vent that came with the stove (this WILL NOT be seen as it will be under my deck) because it’s a bit smaller and already set with a rain guard and screen on it.
The anal-retentive side in me wants to run the 9†duct all the way through the wall, but I"m concerned with putting a hole that big in my concrete block. Plus at this point I've been nickel and dimed with building my house and I'm not interested in getting a custom 9" intake made unless I need to. Plus 9" aluminum flex duct I'd have to do a bit of searching to find.
Am I thinking too much? I'm just going to have a go with the 7" anyway, but wanted to see if I'm going to be disappointed and need to swap it out anyway.
I'm heating a 4,100 square foot house and the unit is in a room with 25' ceilings, so I'm going to need all the CFM I can get.