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Rain cap and temp. control

Trailblazer1229Trailblazer1229 Posts: 69
edited 8:59PM in EggHead Forum
I am firing up another butt tonight. When I cook at 250 the bottom vent is about 1/8 of an inch open and Ms, daisy is closed with only a small crack in some of the vent holes up top. I recently bought a 6" rain cap that I want to use because thunderstorms are predicted overnight and would not like the fire to go out. Has anyone had experience with raint caps affecting the dome temp because it resricts air flow a bit, but not a lot.

Comments

  • Smokey ChuckSmokey Chuck Posts: 19
    I was smoking a butt last weekend and went to sleep after I had the temp regulated and my thermometer alarm woke me up at 3:00 am, and the temp had jumped to 288 degrees. It had started raining and I guess the wind had stirred the coals up enough to start a sudden rise in temp.
  • WessBWessB Posts: 6,937
    The rain cap will put your fire OUT...
  • Semolina PilchardSemolina Pilchard Posts: 768
    The rain cap that you're saying will put out the fire, is that the ceramic one that comes with the egg? I believe Trailblazer is referring to one of those metal vent caps made for vents on a roof.
  • WessBWessB Posts: 6,937
    YES...I was talking about the one that comes with the egg...and now that he mentioned it, it shouldn't be called a rain cap at all. :) ...if he meant a chimney cap then I was dead wrong, and have no experience using them...
  • Trailblazer1229Trailblazer1229 Posts: 69
    Ahh, no.no.no. I am talking about an aluminum rain cap sold for very small chimneys and such, not the ceramic cap. Sorry, should have specified. This cap will fit over the daisy wheel. Looks like a mushroom.
  • Semolina PilchardSemolina Pilchard Posts: 768
    I have no experience with one, but many have posted about using them and I don't recall anyone having to make vent/temp adjustments. At 250 so little air is going through the Egg I can't see it making a difference. Maybe it would at higher temps. Hopefully others will chime in. Good luck.
  • SundownSundown Posts: 2,976
    it was worth the $7 or $8 I paid for it. Mine fits right over the daisy top and works like a charm.
  • WessBWessB Posts: 6,937
    Have seen it pictured in the past...a wonderful find on someones part....sorry for jumping to conclusions....I would set the daisy wheel the same as you normally do and then just slip the chimney cap over it...
  • PhilsGrillPhilsGrill Posts: 2,256
    Rain cap has no effect at all on the temp.
  • Trailblazer1229Trailblazer1229 Posts: 69
    thx
  • aboywithawishaboywithawish Posts: 5
    I personally just set the ceramic rain cap on top of the daisy wheel. It leaves enough space for airflow, and I haven't had any problems with temperature. Just an idea for others ;)
  • Midnight SmokeMidnight Smoke Posts: 76
    With the little air flowing, I do not think it would be a problem. It works for me.

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  • Cpt'n CookCpt'n Cook Posts: 1,917
    I'm cheap and use a coffee can with holes around the outside top edge, it fits perfectly. It has no effect on temps below 450 or so. Would probably affect higher temps.
  • KlagKlag Posts: 208
    Here's another version. $8.00 at Home Depot, fits over the daisy wheel and has no effect on temperature control at all.

    ki4enfa084.jpg
  • WADougWADoug Posts: 191
    Looks like your are getting your answer. We don't get much rain in eastern WA, but I used a "rain cap" during an unusual downpour. It worked fine, temps held firm (225). But, I did try to increase the temp to cook more quickly because of the rain, and I couldn't seem to get it to get hotter. It was too wet and miserable to get a good eval, but I wondered if the "rain cap" impacts the typical temp control process.
  • Ar-CeeAr-Cee Posts: 105
    With the rains in VA this year, I have been using a 7" Pagoda style cap 3 cooks out of a week, and one week, I used it every night. In answer to noticeing an airflow issue, yes, its SEEMS like my airflow is changed a bit. I have tried to evaluate it. With the Guru in place, there is no issue. Without the Guru: there is no definite issue with fire control, it just seems like I need a touch more open on the petals when the cap is in place and that the fire is a little less "responsive". On the other hand, it is downpouring rain and the humidity is 100% and the exterior ceramics are being "water cooled" with a sheet of water, so, I can't really decide what causes what. Things I know: The cook goes on, the fire stays lit, the egg holds it's temprature (if at a small increase in petal (these are generally sub 400f cooks). No real issues in the rain except that I get wet, and if you have to check progress (open the dome) bring an umbrella to cover it all. Just my 2 cents. rc
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