Magnetic thermomoters and their accuracy or lack thereof?

Post in 'The Gear' started by RedRanger, Oct 19, 2008.

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  1. RedRanger

    RedRanger
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    On my insert I can place it on top of the 5/16 steel top, which I believe is the best location. Anyway, I did the oven test and it came out 150F below what it should have read.. Okay, so I tapped and rapped the spring coil and tried again, and this time the test was bang on. Which means on the second test it was oven=400 and stove top =400.. This therm is a Imperial (kel kem) any one else use one of these?

    Not really a big deal, kinda got the handle on my new insert anyway,, just wondering if anyone else finds these cheapies kinda, well lets say not that realiable.
     
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  2. myzamboni

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    I use mine just to know what range I am in. I got an Infrared Thermometer and determined the magnetic is close enough. You should pick up a magnetic one. It's a hoot taking temps on various surfaces (my favorite is pointing it at the better half and telling her how hot she is).
     
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  3. RedRanger

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    Don`t you mean I should pickup a IR one?? It is the magnetic that needs some slapping and smacking from time-to-time..
     
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  4. DiscoInferno

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    The first year with the Ultima I had a standard Rutland magnetic thermometer, which fell off the pipe once too many times and the spring fell out. Last year I replaced it with a somewhat different Rutland thermometer, which came with a screw to attach it to the pipe. That thermometer always seemed to read quite low, but I didn't have a way to be sure. This year I bought another Rutland thermometer (same type as my first) for the new Napoleon, and so I threw it on also for comparison. In the pic you can see that the bottom (newest) thermometer reads about 20-25% higher. I think the lower one is closer to the true temp, but it would seem there can be quite a range on these things.
     

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  5. myzamboni

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    Yep. Sorry, DTB (due to beer)
     
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  6. firefighterjake

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    And here I was thinking that maybe she had a steel plate in her head and you had stuck the magnetized thermometer to her that way. :) ;)
     
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