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HRV and extraction hood

Comments

  • #2
    fclauson
    Registered Users Posts: 1,691 ✭✭✭fclauson


    so despite my last post on that other thread I went with a decent recirculating unit with washable metal grease traps

    works well - but I still sometimes think that extracting to outside would have been ok if we looked carefully at the thermal bridge piece and installed it accordingly - especially when cooking certain items and the fire alarm goes off. We open windows for this rather than boosting the extract into HRV


  • #3
    Curious Geroge
    Registered Users Posts: 1,013 ✭✭✭Curious Geroge


    fclauson wrote: »
    so despite my last post on that other thread I went with a decent recirculating unit with washable metal grease traps

    works well - but I still sometimes think that extracting to outside would have been ok if we looked carefully at the thermal bridge piece and installed it accordingly - especially when cooking certain items and the fire alarm goes off. We open windows for this rather than boosting the extract into HRV

    Thanks fclauson; knowing you have loads, any pics of your ducting in place before the ceiling went up. Do you recall the manufacturer you went with (by pm only)?


  • #4
    fclauson
    Registered Users Posts: 1,691 ✭✭✭fclauson


    some pictures at https://www.facebook.com/Passive.House.Wexford

    I have PMed the extractor


  • #5
    Curious Geroge
    Registered Users Posts: 1,013 ✭✭✭Curious Geroge


    In the final stage of HRV before we start but I've been to a couple of sites and all (different suppliers I must note) seem to all using the anti-microbial 75mm ducting in red/white or blue (I assume these are all the same). What I have noticed is that each extract/supply had 2 connection for 2 pipes but in some houses there was only only and the other was capped.

    Pity I took no pics to show but this is an example online. This has 2 supplies. Whats the difference ?

    http://2.bp.blogspot.com/-Ace0ExtIBVs/U6c_z2AxDXI/AAAAAAAABOw/1AI1XDDZ9HA/s1600/Chapucas+14'0610+-+6.jpg


  • #6
    BarneyMc
    Registered Users Posts: 1,504 ✭✭✭BarneyMc


    Curious Geroge wrote: »
    In the final stage of HRV before we start but I've been to a couple of sites and all (different suppliers I must note) seem to all using the anti-microbial 75mm ducting in red/white or blue (I assume these are all the same). What I have noticed is that each extract/supply had 2 connection for 2 pipes but in some houses there was only only and the other was capped.

    Pity I took no pics to show but this is an example online. This has 2 supplies. Whats the difference ?

    http://2.bp.blogspot.com/-Ace0ExtIBVs/U6c_z2AxDXI/AAAAAAAABOw/1AI1XDDZ9HA/s1600/Chapucas+14'0610+-+6.jpg

    What setup are you using yourself?


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  • #7
    Curious Geroge
    Registered Users Posts: 1,013 ✭✭✭Curious Geroge


    BarneyMc wrote: »
    What setup are you using yourself?

    Have gone with a Brink from advise received here and having talked to recommend suppliers.


  • #8
    BarneyMc
    Registered Users Posts: 1,504 ✭✭✭BarneyMc


    Curious Geroge wrote: »
    Have gone with a Brink from advise received here and having talked to recommend suppliers.

    Sorry I mean what ducting setup?


  • #9
    slipstream
    Registered Users Posts: 198 ✭✭slipstream


    Curious Geroge wrote: »
    What I have noticed is that each extract/supply had 2 connection for 2 pipes but in some houses there was only only and the other was capped.

    i'm in the market for mvhr myself. based upon my research on semi-rigid ducting, multiple duct runs per terminal are used to reduce the duct airspeed and consequent duct noise. duct airspeed of < 2 to 3 m/s in normal (as opposed to boost) mode appears to be seen as a good target for near quiet operation.

    for my 210 square meter house plans, given a 2m/s max airspeed requirement, several 75mm semi-rigid suppliers suggested 2 duct runs from 50 - 80% of all room terminals and 3 - 4 duct runs to the kitchen extract terminal(s).

    btw would you mind pming who you got a brink quote and how much it was for?

    slip


  • #10
    just do it
    Registered Users Posts: 5,422 ✭✭✭just do it


    Slip
    I think OP was referring to the extractor hood specifically.


  • #11
    slipstream
    Registered Users Posts: 198 ✭✭slipstream


    just do it wrote: »
    Slip
    I think OP was referring to the extractor hood specifically.

    hi jdi,

    i was responding to this query and picture in particular
    Curious Geroge wrote: »
    What I have noticed is that each extract/supply had 2 connection for 2 pipes but in some houses there was only only and the other was capped.This has 2 supplies. Whats the difference ?

    http://2.bp.blogspot.com/-Ace0ExtIBVs/U6c_z2AxDXI/AAAAAAAABOw/1AI1XDDZ9HA/s1600/Chapucas+14'0610+-+6.jpg
    which looks like zehnder comfotube mvhr semi-rigid ducting to me (but i could be wrong).

    slip


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