I bought a commercial -20 freezer to make into a powder coat oven.
 

Does any know if the compressor or other parts are worth more than scrap?
I have the MFG phone number so I see what they used for insulation. I hope the I don’t have to replace it.
But I will if I have to. I will be moving my oven controls and heating elements to this.

I bought this for $80 I could not build it for that much.
I do not know how much I will get in scrap for the coils.

https://ecorenovator.org/forum/attac...1&d=1585175989

https://ecorenovator.org/forum/attac...1&d=1585175989

https://ecorenovator.org/forum/attac...1&d=1585175989

It looks like I have to remove the insulation and put in new insulation.
We started on it today. All the cooling system has been removed.

We are using a scraper attachment on a Sawzall. It works amazingly well.
https://ecorenovator.org/forum/attac...1&d=1585271546

https://ecorenovator.org/forum/attac...1&d=1585271546

https://ecorenovator.org/forum/attac...1&d=1585271546

I have oven gasket and door latches on the way.

https://ecorenovator.org/forum/attac...1&d=1585272070

https://ecorenovator.org/forum/attac...1&d=1585272070

What insulation are you going to go with?

Either Rockwool or fiberglass.
But I am leaning towards Rockwool.
You out gas at 450 degrees so either one will work.
The powder coat cures @400 degrees.

It looks like fiberglass. To get Rockwool I have to order 3 packs. No one here stocks it.
I can do it much cheaper with fiberglass. One pack fiberglass $37.48.
That one pack will be enough. That will work for this oven.

Some of the scientific freezers can store flammable storage. Mine is not that type.
I wish it was that maybe I would not have to re-insulate. It will be a pain but I think it will make a nice oven when I am done.
It will also keep my build cost low that is important right now.

I have a standard house oven right now. I will be gutting it and putting its heating elements in this one. For now I will just use its controls. This should work good in a oven this size and will keep cost down.

I have the top off. I don’t think I can reproduce the way the panels are held together.
I may just cut strips and screw or rivet it back together. It is about 2.5” thick I may expand that to 3.5”.
That would fit my insulation better.

https://ecorenovator.org/forum/attac...1&d=1585319280

More progress.
Now some of the finer details to get it ready to put back together.
I will need to add some support. The insulation was a lot of the support before the new insulation will not give the same support.
Really just the top and the bottom needs the support.

https://ecorenovator.org/forum/attac...1&d=1585504452

https://ecorenovator.org/forum/attac...1&d=1585504452

https://ecorenovator.org/forum/attac...1&d=1585504452

https://ecorenovator.org/forum/attac...1&d=1585504452

I have the trim pieces ready for final clean up.
I took the torch to one of the sides. The middle part is not flammable but the trim pieces is flammable.
They use a lot of masking tape that will need to be removed.
https://ecorenovator.org/forum/attac...1&d=1585584612

https://ecorenovator.org/forum/attac...1&d=1585584612

The door is the last piece that needs the needs insulation removed.
Then it is just final clean up add support and oven layout.

You need this? ------->Attachment 8921

What is that?

Its an electrostatic power supply for powder coating. (makes the powder stick to the stuff you are coating).