Hey guys.....remember the picture of the big mudhole I posted some time back...?? Well, they are building me a house there, go figure.....
Things are really moving right along. I wanted to share with you guys what I'm doing for ventilaton in my smoking room.
I'd originally thought about using a 4-600 CFM booster fan and just creating a negative pressure in the room. Talked to the HVAC guy and he told me that wasn't a good idea for a couple of reasons. First off, new homes these days are VERY sealed up. There wouldn't be that much make up air available, so the amount you'd actually exhaust would be lots less. He was a great guy, and very helpful. We discussed several options and I decided on using a "heat recovery ventilator" or an HRV. What this is, is basically a heat exchanger with filters on it. What it does is heat / cool the outside air using the air that's being exhausted from the room through a passive heat exchanger (with intake / exhaust fans moving the air). That way, if it's 30F outside, I won't be blowing ice cold air into the room in bulk. Conversely, when it's 90F outside, I won't be cooking myself with hot outside air.
The final detail is an electric dampner on the HVAC intake which seals the room off from the rest of the house when I kick on the ventilator. I'm told I'll get a solid 2-300 CFM which will completely replace the air in the room every 5-7 minutes. It is a completely isolated system from the main house's HVAC. Should work great....!!
Here'st the room exhaust, in the ceiling, center of the room. That's a 10" duct and it goes to a fan that feeds one side of the HRV:
Here's the fresh air intakes....from the outside air intake to the HRV:
A little hard to see, but here's the magic box - the HRV. It's sitting in a drip pan to collect any condensation. It has washable filters that I'll pull, wash, and reinstall once a year or so. It doesn't look like it in this shot, but it's in the upper crawlspace next to the furnace, and actually easy to get to via the pull down access ladder that we'll have:
Needless to say, with a nice big screen and my Staebell, this should be a great space to have a smoke when the weather sucks outside. Of course you guys will all be invited for the opening herf...!!....:thumbs:
Cheers - B.B.S.
Things are really moving right along. I wanted to share with you guys what I'm doing for ventilaton in my smoking room.
I'd originally thought about using a 4-600 CFM booster fan and just creating a negative pressure in the room. Talked to the HVAC guy and he told me that wasn't a good idea for a couple of reasons. First off, new homes these days are VERY sealed up. There wouldn't be that much make up air available, so the amount you'd actually exhaust would be lots less. He was a great guy, and very helpful. We discussed several options and I decided on using a "heat recovery ventilator" or an HRV. What this is, is basically a heat exchanger with filters on it. What it does is heat / cool the outside air using the air that's being exhausted from the room through a passive heat exchanger (with intake / exhaust fans moving the air). That way, if it's 30F outside, I won't be blowing ice cold air into the room in bulk. Conversely, when it's 90F outside, I won't be cooking myself with hot outside air.
The final detail is an electric dampner on the HVAC intake which seals the room off from the rest of the house when I kick on the ventilator. I'm told I'll get a solid 2-300 CFM which will completely replace the air in the room every 5-7 minutes. It is a completely isolated system from the main house's HVAC. Should work great....!!
Here'st the room exhaust, in the ceiling, center of the room. That's a 10" duct and it goes to a fan that feeds one side of the HRV:
Here's the fresh air intakes....from the outside air intake to the HRV:
A little hard to see, but here's the magic box - the HRV. It's sitting in a drip pan to collect any condensation. It has washable filters that I'll pull, wash, and reinstall once a year or so. It doesn't look like it in this shot, but it's in the upper crawlspace next to the furnace, and actually easy to get to via the pull down access ladder that we'll have:
Needless to say, with a nice big screen and my Staebell, this should be a great space to have a smoke when the weather sucks outside. Of course you guys will all be invited for the opening herf...!!....:thumbs:
Cheers - B.B.S.
