air vents for cooker

Discussion in 'Self-Build Motorhomes' started by Bruce, Jun 27, 2013.

  1. Bruce

    Bruce Read Only Funster

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    Hi I have just installed a spinflo gas cooker with two rings and a grill I was going to put a couple of mushroom type roof vents above cooker but when I was in caravan shop asking for advice there was a chap in shop from Scottish caravan services who told me I had to calculate area of van against btus or bthus (I think it was something like that) for carbon monoxide can anybody give me some guidance please. I obviously want to do the right thing to complete my conversion........Bruce
     
  2. sdc77

    sdc77 Funster

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    Hmm this puzzled me a little.. Because as far as I knew a correctly burning grill /hob produces little carbon monoxide. (obviously it shouldn't be used for space heating). We have no special vents specifically for the hob or grill.. Just the general vents . We have used the hob in inclement weather in just the van with no issues... But normally have the awning attached which has a massive volume. Our co alarm has never gone off.
    I'll be interested to see what's said here.
     
  3. Bruce

    Bruce Read Only Funster

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    air vents

    Thanks for reply. Before I went for the mushroom type vents I got advice from the company that supply gas certificate . They were happy with rear opening windows for ventilation which was needed however when I finished rear of kitchen area no access to opening these. It was a minibus so these not needed, hence mushroom vent idea. Will go back for advice and post result hopefully carbon monoxide alarm adequate, but any more views appreciated...............Bruce
     
  4. treetops1

    treetops1 Funster

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    Can you not fit a 12v extractor fan to use when cooking.
     
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  5. mitzimad

    mitzimad Funster

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    the people to speak to would be spinflow as in matters of gas its the manufacturers instal instructions that take precident does it ask for ventilation in those
     
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  6. Terry

    Terry Funster

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    BTUs stands for british thermal units and is used in calculating heating boiler, rad sizes, air con etc, and not really anything to do with a van conversion (maybe if you fitted air con)if you fit a small roof vent or can open a window all will be OK especially if you have a carbon monoxide alarm.
    Terry
     
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  7. rainbow chasers

    rainbow chasers Read Only Funster

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    I beleive it is room width x room length x ceioling height x 20. That gives you the maximum BTU figure for your vehicle.
     
  8. mitzimad

    mitzimad Funster

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    that sounds like a rough heat loss calc as a plumber and heating fitter we work on room volume times 5 for domestic well we did before it all went metric. times 20 sounds a bit ott even for an uninsulated van
     
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