ChinaVoodoo
Moderator
That's not nearly as huge as I thought. That should be easy to heat.
Oldfella's kiln build
- Thread starter Oldfella
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That's about double the volume of my kiln. So it should be a perfect size for a home grower.
Bob
Bob
Oldfella
Well-Known Member
Thanks Bob & China. You have confirmed with what I had figured out. I also have been thinking about the size and I think it would be possible to have a (insert,wall? ) That could half the size. It wouldn't even have to be well insulated. But that's a later project. I must be careful not to get too far ahead of myself here. As my Doctor said, " One thing at a time, Jhonny boy, one thing at a time." He must think I'm getting old or something.
Cheer's
Oldfella
Well-Known Member
Back again, more questions. I'm going to be lineing the inside with a product from here called Triboard, I think the common name is MDF. The thing is what to paint it with. It must seal, resist heat to max 200°f don't have to go any higher than that. My kids reckon if I was left alone I would build it out of 1/8" plate, last a lifetime though. I'm a metal man not timber.no worries however, any hints, tips, ideas are much appreciated. BTW The reason for the board is easy, I have it.
Thanks
Thanks
What are your plans for insulation? I used MDF on the outside of 2” rigid foam board to help sturdy the framing, an additional small measure of insulation so the joints of the MDF didn’t coincide with the foam joints, hide the ugly pink foam board, and a small measure of a firewall to give me time to rush the kiln outside if the worst happened while I was watching. Probably overkill.
It looks like my foam board maxes out at 165 F. So I would be on the ragged edge at max flue cure temps. Your 200 F target is a pretty good safety margin. Does the MDF max out at recommended 200 F?
In terms of finish, I am wondering what the specs would be for food grade Bar Top Finish?
FOAMULAR® 250 XPS Foam Board Insulation | Owens Corning Insulation
Foam board insulation can be used in a variety of home & building applications. Get the details needed to use FOAMULAR® NGX® 250 XPS for your next project.
www.owenscorning.com
In terms of finish, I am wondering what the specs would be for food grade Bar Top Finish?
Temps of MDF look pretty good. It does contain Formaldehyde.
Oldfella
Well-Known Member
Stuff the kiln, grab the baccy.
Anyway, insulation is the thing. As the exterior walls are metal ( Tin garden shed,) I will have to be careful not to make it bulge. The plan is to use a spay foam and fill the space. There's a heap of different types now so I'll have to check them out. I got one the other day for another job and that's what gave me idea.
I know you know what you’re doing so I’m addressing this to the newbs that will be reading this. Read the MSDS and any info you can get for not only safety sake but in the event of off gassing that ruin the smell of your baccy. Following along with interest. I’m going to let you try out the MDF and then I may follow along and line mine. Don’t know, not sure. Lol.
Oldfella
Well-Known Member
Haven't seen the specs for the MDF yet, re Formaldehyde it's been lying against the wall in shed for around 25-30 years, so it's well breathed out. 200°f. You aren't going to be at that Temp for long, it was a stab at a test run. Painting is the thing now.
Speaking of off gassing it wouldn’t hurt to squirt some of that spray foam on a pie pan, let it dry and bake it in the oven to see if you detect any bad smell.
Another goof I made, I did good and used coated deck screws that didn’t rust but screwed up and used zinc plated flat washers that did rust inside the kiln. I need to go back and swap those washers out with stainless.
Oldfella
Well-Known Member
Thanks for that Knu
I'll try it out today, you can have a laugh here but it is only 7 in the morning and I'm still in bed.
It’s okay, it’s 3 pm here, I’m not sleepy. Lol. Have a coffee on me brutha.
Oldfella
Well-Known Member
I'm getting ahead of myself again. I'd better get up and get some meds. I'll get back to it later today.
Last edited by a moderator:
Oldfella
Well-Known Member
I have already done that. Because of where I live, I use stainless every thing. I gotta go to town today but as soon as I get home I'll do some heat testing on the everything. I got a gas oven so I can run it for a day or two and see what happens. I will post the results when it's done. If you think 2 days isn't enough, or too much, let me know. Gas is free so cost ain't relevant. It's probably only nesacary to do for an hour or so. I will test the:
FOAM:
MDF:
PAINT:
Testing will be carried out on each material individually so as to avoid cross contamination.
Disclaimer results are not garenteed, as I will not be able to test to a code of practice. They are however a good indicator that the product works.
Oldfella
Well-Known Member
So much for the just going to town for a few minutes.
THE SAGA OF GOING TO TOWN.
Went to the Hospital and sorted some more stuff.
Went to the pharmacy and picked up some more meds.
Went to the Whare house and the world turned to crap.
I slipped on the slippery floor.
My stick slipped on the slippery floor and I hit the deck ending up in pile of blood. My medical condition made impossible to get up.
Ambulance came to the rescue, and after checking the damage, the two of them were able to get me up and on to the stretcher. After putting corks in the bleeding holes they asked if I wanted to go to the hospital. I didn't so they said if I can walk to the truck I'll be OK. I did. So I came home.( Sister drove).
A QUICK TRIP TO TOWN. LOL
gotta go back tomorrow as I didn't get what I wanted.
Cheer's
Battered and bruised Oldfella
PS: I might get a discount on what I need. LOL.
You must really be trying to procrastinate on building that kiln if your getting injured on purpose. Kidding of corse, hope you are feeling better.
Oldfella
Well-Known Member
Realize that. I'm going to the Doctor today mainly to get checked out should be OK, besides it'll register my ACC claim just in case. Here's some pics of some stuff I got before I went tits up.
Some of will be ok we'll see.
And yeah I'm feeling lots better.
Oldfella
Well-Known Member
FOAM:
MDF:
PAINT:
Testing will be carried out on each material individually so as to avoid cross contamination.
Disclaimer results are not garenteed, as I will not be able to test to a code of practice. They are however a good indicator that the product works
Gave the MDF board the heat test today.
Using the working temperature of 200°F (93°C) I calculated a test temperature of 300°F (149°C). This test temperature was calculated thus, working temperature *1.5 = test temperature.
No smells where noticed by either my sister or myself we both sniffed the end of the test. My MDF board should be OK. But If you are planning to use it I would give it the same test I have done.
Some pics because I can.
Oldfella
MDF:
PAINT:
Testing will be carried out on each material individually so as to avoid cross contamination.
Disclaimer results are not garenteed, as I will not be able to test to a code of practice. They are however a good indicator that the product works
Gave the MDF board the heat test today.
Using the working temperature of 200°F (93°C) I calculated a test temperature of 300°F (149°C). This test temperature was calculated thus, working temperature *1.5 = test temperature.
No smells where noticed by either my sister or myself we both sniffed the end of the test. My MDF board should be OK. But If you are planning to use it I would give it the same test I have done.
Some pics because I can.
Oldfella
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