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Petersime Incubator

Discussion in 'Incubating & Hatching Eggs' started by Buck Creek Chickens, Nov 10, 2009.

  1. Buck Creek Chickens

    Buck Creek Chickens Have Incubator, Will Hatch

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    Nov 26, 2008
    Neenah, WI
    Anyone have one? I'm looking into buying a Petersime model 1, its a redwood incubator, from the guy in Minnesota
     
    Last edited: Jun 2, 2010
  2. Princess Amri

    Princess Amri Is Mostly Harmless

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    best coast
    Never heard of it. I've heard redwood incubators are good though.
     
  3. Junkmanme

    Junkmanme Chillin' With My Peeps

    You MIGHT check Ebay. I think I saw one for sale there in the past few days. Don't know what model it was.
     
  4. Buck Creek Chickens

    Buck Creek Chickens Have Incubator, Will Hatch

    4,376
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    Nov 26, 2008
    Neenah, WI
    e bay has old parts for a #4, very few at that, I'm looking for someone that has a petersime, I'd like to know how they work, there not supposed to be as temp. sensitive to room temps as other incubators
     
  5. muddstopper

    muddstopper Chillin' With My Peeps

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    Murphy NC
    Quote:The reason solid wood cabinets maintain heat much better than other type cabinet materials has to do with the R Value of the cabinet material. The R value is a measure of thermal resistance. Plywood type made incubators using 1 inch thick plywood will have a R value of around R1, about the same R value of a one inch layer of snow. Of course plywood incubator cabinets manufacturers only use 1/2inch plywood at best, so figure a R value of .5. Oddly enough, a hardwood cabinet made using 1inch thick lumber only has a R value of R.71, which is less even than the value of plywood of equal thickness. Since lumber is usually 3/4 in thick the R value of a hardwood cabinet is only slightly better than a ½ plywood cabinet. On the other hand, soft woods, (redwood, pine, firs), of a 1 inch thickness will have a R value of R1.41, double the values of hardwoods. Since lumber for cabinets is usually around 3/4in thickness, a Redwood incubator would be insulated to about R1.05, or roughly twice the insulation value of a plywood or hardwood type cabinet.

    Further you have the factor of thermal mass, (also called thermal capacitance or heat capacity). Thermal mass is the capacity of a body to store heat, where as a thicker piece of solid wood would be able to store a greater amount of heat, thereby being least effected by changes in outside temperature over a short period of time. Given the thermal mass of a hardwood cabinet, even though the R value is about the same as for plywood, hardwoods (of greater thickness) would still be a better choice for building an incubator cabinet because of the woods ability to store heat, ie. thermalmass. Softwoods ( Redwood, Pines, Firs), of the same thickness would have a similar thermal mass as the hardwoods and double the R value and would be a better choice of incubator material than either the hardwood or the plywood.
     
  6. koolie6br

    koolie6br New Egg

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    i have a no.1 in central WI and my sister has another they are a great incubator bit there to big and i think im going to get rid of mine
     
  7. JazminesZoo

    JazminesZoo Chillin' With My Peeps

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    [​IMG]
     
    Last edited: Oct 25, 2011
  8. FLTortoise

    FLTortoise Out Of The Brooder

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    Hi Koolie6br,

    I will buy your Petersime and could pick it up no problem. . .
     
  9. FLTortoise

    FLTortoise Out Of The Brooder

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    Nov 17, 2011
    Jacksonville, FL
    Nice write up Muddstopper! I knew this but could never express it in words as well as you did ;-)
     

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