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Old 05-17-2013, 12:54 PM
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Default Which insulation to use in insulated door

Im building/welding the insulated door tomorrow, i have both Cal-Sil boards and Ceramic fiber blankets. Both are left over and can use both. Which will insulate better?

Some facts. The Cal-sil board is rated up to 1,200F, the CF blanket is rated over 2,200F. The blanket can be packed tighter as it will compress.

What do you guys think? Thanks
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Old 05-17-2013, 01:36 PM
okn okn is offline
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Default Re: Which insulation to use in insulated door

My vote is for Ceramic blanket. Easier to work with.
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Old 05-17-2013, 01:39 PM
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Default Re: Which insulation to use in insulated door

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Originally Posted by okn View Post
My vote is for Ceramic blanket. Easier to work with.
And the door will be considerably lighter .
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Old 05-17-2013, 01:45 PM
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Default Re: Which insulation to use in insulated door

I like the way you guys think...
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Old 05-17-2013, 02:42 PM
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Default Re: Which insulation to use in insulated door

I hope we can finish the door tomorrow so i can put some use to it. Last night i fired the oven, after finishing with the fire i blocked out the entry with bricks, in the morning i removed the bricks and the oven was still warm. Mind you i only fired the oven to 400F (at its peak). So im sure with the insulated door i will get better performance.
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Old 05-17-2013, 03:03 PM
okn okn is offline
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Default Re: Which insulation to use in insulated door

What thickness metal will you be using?
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Old 05-17-2013, 03:27 PM
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Default Re: Which insulation to use in insulated door

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What thickness metal will you be using?
about the thickness of nickle. enough? i figure im not going to have the door on when i have a blazing fire therefore dont need to have a heavy duty door.

Last edited by V-wiz; 05-17-2013 at 03:42 PM.
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Old 05-17-2013, 05:03 PM
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Default Re: Which insulation to use in insulated door

you need to put the door on with a pretty hot fire if you want the oven to be hot in the morning. I stoke mine up and then put the door on so it will be 600-650 in the morning.
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Old 05-17-2013, 05:20 PM
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Default Re: Which insulation to use in insulated door

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you need to put the door on with a pretty hot fire if you want the oven to be hot in the morning. I stoke mine up and then put the door on so it will be 600-650 in the morning.
I used a sandwich of foamglas between 1/8" metal and 3/4" ipe wood. The ipe made it too heavy and I will make another with a lighter wood. But I have put this door on when the oven was still 650-700 degrees F and is has been fine for almost two years.
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Old 05-17-2013, 05:20 PM
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Default Re: Which insulation to use in insulated door

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Originally Posted by deejayoh View Post
you need to put the door on with a pretty hot fire if you want the oven to be hot in the morning. I stoke mine up and then put the door on so it will be 600-650 in the morning.
When you put the door on don't you kill the live fire by starving it of oxygen?
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