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Clay pot heaters

General Preparedness Topics Relating to your Family

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Re: Clay pot heaters

Postby kr105 » Thu Nov 21, 2013 6:15 am

Mom, since this is very new to me, would you consider posting pictures of your final configuration?

Do you just balance one pot on top of the other (no hardware in between)?
Also are you using voltives or tea lights?
How many candles in the final configuration?

Thanks again for a great idea!
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Re: Clay pot heaters

Postby ARDon » Thu Nov 21, 2013 7:57 am

great new Mombear, my wife Sally & I was very impressed by your test and she add this to my list of prep's.
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Re: Clay pot heaters

Postby mombear » Thu Nov 21, 2013 9:51 am

Here goes, one note use un-used tealight tins, you'll see why with the pictures. I did put a cap on the second pot until it warmed up it only took a few minutes to do that.
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Re: Clay pot heaters

Postby mombear » Thu Nov 21, 2013 9:54 am

I will be having a couple sets of these for my mom, I do think that where she lives in the dead of winter where it can get to -40 that having several of these will be a good idea, I will have a few bundles of tealights from IKEA for her to use.
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Re: Clay pot heaters

Postby Route 66 Prepper » Thu Nov 21, 2013 12:25 pm

It works like a baseboard draft heater. Using the hardware blocks the airflow not allowing it to circulate. It is more about the constant pulling in of the cold air than the direct heat output of the exterior of the largest pot.
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Re: Clay pot heaters

Postby kr105 » Thu Nov 21, 2013 1:16 pm

Brillant!

Just to clarfy - there are two pots in there, one under the other and no hardware holding them together? I'm stopping at Lowe's to pick up parts this week to make it.
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Re: Clay pot heaters

Postby mombear » Thu Nov 21, 2013 1:33 pm

that is correct.
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Re: Clay pot heaters

Postby Onegreenguy » Thu Nov 21, 2013 2:08 pm

Good stuff!!! I'm going to get some pots and experiment myself. I'm wondering if you put a spacer between the two pots (in the two pot configuration) and then drill some small holes in the top of the outer pot...would that increase the air flow/convection and help heat the room quicker and/or hotter???
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Re: Clay pot heaters

Postby Bull54 » Thu Nov 21, 2013 5:44 pm

I redid the 2 pot method and this time I placed a piece of aluminum foil over the hole on the inside pot. It seemed to me to heat up quicker with this method. I wanted to see if the smaller pot would trap the heat faster and force more heat into the outside pot and it felt like it did to me.

mom,

My 4 candles burned approximately 3-4 hours with the foil and only about 3 hours without it. What time frame did you get out of yours?

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Re: Clay pot heaters

Postby mombear » Thu Nov 21, 2013 6:24 pm

I buy the IKEA candles and they burn just short of 4 hours, I have some votive candles from there also and in a glass container they last 12 hours. Nice information to know, for night time. Out of a glass container they might last 3 hours, due to the loss of wax when the walls of the candle collapse, so keep your votive candles in a tight container.

Onegreen guy: I would get a couple of spare pots, they break easy.
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Re: Clay pot heaters

Postby kr105 » Thu Nov 21, 2013 6:33 pm

mombear wrote:.

Onegreen guy: I would get a couple of spare pots, they break easy.


That was in the back of my mind -- is it because they heat up, lose their moisture and crack when hot or do they just fall and break?
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Re: Clay pot heaters

Postby mombear » Fri Nov 22, 2013 11:53 am

If your gonna put extra wholes in the bigger pot, they aren't made to have extra holes put in them. :o)
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Re: Clay pot heaters

Postby Onegreenguy » Fri Nov 22, 2013 12:24 pm

mombear wrote:If your gonna put extra wholes in the bigger pot, they aren't made to have extra holes put in them. :o)


The holes would be small (like under 1/4") and spaced to be as far apart as possible from the sides and other holes to reduces chances of cracking or breakage. It may or may not work, but I planned on starting out by adding two smaller holes and increasing or decreasing from there. My theory is if we can increase heated airflow (by making the convection process more efficient) we can heat a greater volume of air in a room sooner and perhaps increase overall temperature before the candle burns out. I think if I use a high speed drill I can drill the holes without breaking or cracking the pot.
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Re: Clay pot heaters

Postby FussyOldHen » Fri Nov 22, 2013 1:58 pm

Don't go crazy thinking you're going to overheat these pots. The normal temperature range for terra cotta clay is 2000F when they're originally fired. Freezing damp pots will kill them much quicker.

Mombear, thank you for all your work and taking the time to pass the info along.
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Re: Clay pot heaters

Postby anita » Fri Nov 22, 2013 2:21 pm

This has been posted in another area of APN, and the links that took me to suggested putting a bolt, large metal washers with nuts in between to hold it all in place. The metal heats up much faster than the terra cotta.

When I did this, I used two pots, with a 6" x 1/2" bolt between the two pots, (which are probably about 8" and 6") and several washers and a nut between. I think the more nuts you put in between the pots, the more heat you'll retain, but just a guess. I put the pts onto a terra cotta saucer and stacked them on the feet that you use to hold pots off the ground, so that there was air flow.

If you get too small a pot, you will have to use a narrower bolt, as the hole in the small pots isn't a half inch, and I think the bolt is one of the things that helps retain the heat.

I thought that the bread pan concept seemed rather precarious, esp. if you have cats, dogs, or clumsy people around.
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