Smoke/Carbon Monoxide combined alarm

Discussion in 'The Beginner' started by Simon Meadwell, Apr 5, 2016.

  1. Simon Meadwell

    Simon Meadwell Funster

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    Hi, we are looking for advice on which combined smoke/carbon monoxide alarm to buy for our motorhome.
    Thanks.
     
  2. Jim

    Jim Ringleader

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  3. Zigisla

    Zigisla Funster

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  4. Simon Meadwell

    Simon Meadwell Funster

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    Thanks, will be getting one this weekend. Better to be safe and sound.
     
  5. pappajohn

    pappajohn Funster Life Member

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    Cant remember the brand but I have one that talks.
    Beee-baaa...beee-baaa...whoop-whoop
    WARNING...WARNING...CARBON MONOXIDE

    or

    WARNING...WARNING....FIRE...FIRE.

    Bloody thing is a menace, you only have to burn the water in the kettle to trigger it.
     
  6. GAVLAD

    GAVLAD Funster

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    Aldi currently gave a stock of combined smoke detectors and Carbon Monoxide detectors within the one unit, although I can't remember what make they were. They were selling for about £16 each - saw them today.

    We fit Fire Angel at work but they're just smoke detectors.
     
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  7. Simon Meadwell

    Simon Meadwell Funster

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  8. GJH

    GJH Funster Life Member

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    I think that's the one I fitted to our van (which had neither when we bought it). It's certainly a Fire Angel even if not that model.
     
  9. Geo

    Geo Trader - Funster

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    Am i wrong in thinking that Most smoke is ligher than air (because its usually warmer) it rises anyway
    and Co is heavier than air
    Yes and No its a myth that Co detectors should be fitted lower down and smoke detectors higher up.
    Co is in fact very slightly lighter than air and spreads around a room very evenly so the combined units work very well where ever you put em
    Not often you get a question with the answer at the same time
    G
     
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  10. Terry

    Terry Funster

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    myself and @andy63 discussed this very subject just before xmas (Andy x fireman /training officer) I asked where the combined unit should go IE high up or low down -after five mins we decided just like Geo said that COs very slighly HEAVIER than Air but smoke rises and Andy said that CO is caused by burning so it would initially rise with the smoke/heat -conclusion fit it higher rather than lower :)Of course I threw mine on the dash :LOL:Still never found a place to actually fit the thing :D
    EDIT SHOULD READ co HEAVIER THAN AIR
     
    Last edited: Apr 6, 2016
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  11. andy63

    andy63 Funster

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    We did indeed.. and if I was been really fussy not tight to the ceiling or wall where they meet...ie if on wall a few inches down wall from ceiling and if on ceiling a little out from wall... That area can be a bit of a dead space ,so not ideal but that's been really fussy lol...
    Hope all well with you Terry and we catch up soon... I've lost your contact after a disaster with phone:(
    Andy
     
  12. Geo

    Geo Trader - Funster

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    Some people have all the luck :LOL:;)
     
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  13. Robin McHood

    Robin McHood Funster

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  14. Mattyjwr

    Mattyjwr Funster Life Member

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    You may want to check this ... carbon monoxide is lighter than oxygen which generally occurs as O2. CO has a mass of 28g/mol and O2 has a mass of approx 32g/mol. "Air" has a mass of approx 28.8g/mol.

    As for positioning, CO monitors and smoke monitors should be placed up.
     
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