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    I checked the Dwyer Instruments, Inc. WEB site, -...

    I checked the Dwyer Instruments, Inc. WEB site, - they are specializing mostly in flow control & other related categories. I didn't see any fans on their site. Maybe they can refer me to proper...
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    Hmm... after I posted I found That Greenheck...

    Hmm... after I posted I found That Greenheck actually makes one for Lab ventilation purposes, BTW, this is a link. Anything else I missed?
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    Gosh, this is devastating all the way from 3000...

    Gosh, this is devastating all the way from 3000 to 2000 CFM and u still insist to further attenuate the run by putting (2) 90degrees elbows, hence further increasing resistance?
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    First of all, my sincere apologies if you sensed...

    First of all, my sincere apologies if you sensed or felt that I was rude toward you; nothing of that sort of behavior was intended. Secondly, in my current design it will never happen because WHF fan...
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    Very smart and sensible suggestion, indeed. The...

    Very smart and sensible suggestion, indeed. The real question is, - are they produced / manufactured here in USA / Japan or Europe? So far, I saw only constant speed varieties from guys like Soler /...
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    TIA and there u go, hopefully it will give u some...

    TIA and there u go, hopefully it will give u some ideas, this is FKD-16 variety
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    It just dawned on me that my 3000 cfm inline...

    It just dawned on me that my 3000 cfm inline blower may not be powerful enough to pull air out through newly built ventilation network for 6-8 rooms. This is way over my head and I am afraid that I...
  8. Panasonic Whisperline FV-40NLF1 or something else?

    Anybody cares to share how the above stack against Soler & Palau or Fantech equivalent models? It i defineteely much quiter, at least accoding to published specs, - less than 2.5 sones. What about...
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    Right now I'm trying to figure out how much of...

    Right now I'm trying to figure out how much of sidewall or ceiling exhaust fan I need in order to deal with both issues, - heat build-up under the sloped ceiling and remaining kitchen odors which...
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    I don't need to oversize individual rooms, right....

    I don't need to oversize individual rooms, right. CanI go with regular specs? With the exception of running sound proof flex line last 6 feet to the register?
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    Thanks, much appreciated

    Thanks, much appreciated
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    5 @ 70x25 and 3 @ 88x25 plus 2 huge skylights, I...

    5 @ 70x25 and 3 @ 88x25 plus 2 huge skylights, I belive 48x24 each
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    Sorry for bothering you with this stupid...

    Sorry for bothering you with this stupid question, should have thought about that before asking as there is no mathemetical correlation and 2 12' pipes won't be even close to what I need. I guess, I...
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    There are people upstairs so I won't do that. ...

    There are people upstairs so I won't do that.



    And how much will it cost to replace regular huge double pains with low-e glass? And what will be the benefit? Any idea?
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    Can I split the main trunk in 2 trunks of 12"...

    Can I split the main trunk in 2 trunks of 12" each and distribute evenly the rest of space between them? I realise that I still have to do 90 bends. TIA
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    We are talking about whole wall (floor to...

    We are talking about whole wall (floor to ceiling) made out of huge 20 year old picture windows plus 2 huge skylights.



    Maybe, I am not ready to answer one way or another.



    ...
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    There was another reason for additional more...

    There was another reason for additional more powerful sidewall exhaust fan under the kitchen ceiling, I was hoping that it will deal not only with build up heat during summer but also will get rid...
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    I remember reading about that effect somewhere...

    I remember reading about that effect somewhere but I could be wrong.



    That is the worst case scenario and I may have overshot quite a bit. I would say that on average it wil be less than...
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    I can't say for sure because, first of all I...

    I can't say for sure because, first of all I have pretty much open floor layout and secondly very ineffective current downdraft vent despite its well known name. It has the blower inside kitchen...
  20. Kevin, I painfully realize this and, as a matter...

    Kevin, I painfully realize this and, as a matter of fact, I start looking @ ERV solution long time ago.
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    Aren't we presumptuous again??!! You have no clue...

    Aren't we presumptuous again??!! You have no clue who I am and what my connections and capabilities are. Despite the fact that you are in a business, I can probably buy everything that you buy and...
  22. Is there something wrong? Could you elaborate?

    Is there something wrong? Could you elaborate?
  23. And how did you figure that out?

    And how did you figure that out?
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    Ok, thanks Kevin. I'm done with this garbage

    Ok, thanks Kevin. I'm done with this garbage
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    Hmm..what fan are you talking about? What about...

    Hmm..what fan are you talking about? What about noise level?
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