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  1. #1

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    advice for submersible heater

    being in a basement in Canada, it's hard to keep paper and film developer (8x10 tank) at room temperature...it's a very frustrating experience as I try to keep it consistent, the prints and film are not as consistent as I would like. Does anyone have any advice on a specific product? on eBay? something under $20? Thanks in advance.

  2. #2
    ChristopherCoy's Avatar
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    Aquarium heater?

  3. #3
    dpurdy's Avatar
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    http://www.ebay.com/itm/Titanium-Hea...item2a22418b3a

    Yes that is what I do in my cold basement. i have one similar to this in that the entire heating element is submersed and can lay flat while the controls are left out. I use an over sized tray under my developer tray and heat a water bath or sometimes I just put the heater into the developer. In both cases you have to rock the tray a lot to spread the heat.

  4. #4
    ozphoto's Avatar
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    Quote Originally Posted by ChristopherCoy View Post
    Aquarium heater?
    Was going to suggest the exact same thing. I remember my grandmother using one with her tropical fish (years ago!!), and it was a set temperature. Do they now come with an adjustable thermostat these days?

  5. #5
    MattKing's Avatar
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    This might help - and definitely has one of the best APUG thread titles ever: http://www.apug.org/forums/forum43/35600-sue-weeee.html
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

  6. #6
    dances_w_clouds's Avatar
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    Another good device for under trays or containers:
    http://www.my-waterbed-shop.com/store/products26.html

  7. #7

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    Here in my Michigan basement winter temps give me the same problem. I have found that seedling heating mats from growing suppliers like Tek-Supply (sorry, no link now) are the cat's meow. Place them underneath your trays and you can hook them up to a thermostat or just plug them on and off as needed. The one I use will fit three 11x14 trays on it.

  8. #8
    Steve Smith's Avatar
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    Quote Originally Posted by jordanstarr View Post
    being in a basement in Canada, it's hard to keep paper and film developer (8x10 tank) at room temperature.
    .
    I bet that it stays at exactly room temperature. The problem is your room is too cold!


    Steve.

  9. #9

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    For what they are, specialist dish heaters are very expensive. However in the past I made one that worked, but with no thermostat. All you need is a metal box (I used one that biscuits (cookies) came in around Christmas time. I cut a hole in the side and fitted a light socket to take a 15watt bulb. The cable to a power point was made using 3 core cable, two to the base of the light socket and the 3rd screwed to the side of the box as an earth return.
    It did before I was able to afford a proper heater.

    One other alternative I have considered in the past was a heated rubber mat such as those used by physiotherapists to apply heat to a patients back. They have a variable heat setting and are a lot cheaper than conventional dish heaters

  10. #10

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    I use a "heating pad" directly under my developing tray. Works Perfect!

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