Stove paint inside?

Stove paint inside?

PostBy: daluds On: Sat Sep 15, 2012 4:09 pm

I have been cleaning the inside of the EFM, and notice its rusting. Will stove paint be a good idea on the inside surfaces to stop the rust?

Thanks,

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Stove paint inside?

PostBy: Scottscoaled On: Sat Sep 15, 2012 9:30 pm

I don't recommend high temp paint for the inside. The rust on the inside will react with the sulfur in the coal gas and sort of "cure" the inside. I would make it a point to keep any moisture out. The last couple days I have been cleaning out the insides of a couple boilers getting them ready to recondition them and it seems that the ones that were painted with high temp were a bitch to get clean. The ash fused with the paint and made buildups that were a pain to remove. Any place that was "cured" brushed off easy. I would think that the bare metal would transfer heat better. When I redo one I use regular primer as it stops the rust after the sandblast and burns off quickly. :)
Scottscoaled
 
Stoker Coal Boiler: EFM 520x4, 350, 700. Van Wert 400 x 2, 800, 1200.
Coal Size/Type: Lots of buck

Re: Stove paint inside?

PostBy: Ed.A On: Sat Sep 15, 2012 10:01 pm

I've not a Boiler, but brushing the inside of my stoker of any rust/residue every spring seems to work good for me.
Ed.A
 
Hot Air Coal Stoker Stove: Alaska Channing III/ '94 Stoker II
Coal Size/Type: Rice

Re: Stove paint inside?

PostBy: Richard S. On: Sat Sep 15, 2012 10:38 pm

I would imagine even a high temp paint is not going to last long. At most you might want to consider painting the bottom section below the firepot and boiler section.

As long as it's operational the rust is non issue. If you have to shut it for the summer season wash it out with baking soda and water mixture, that will neutralize the acids. Open it all up and put a incandescent lightbulb in the firepot.
Richard S.
 
Stoker Coal Boiler: Van Wert VA1200
Coal Size/Type: Buckwheat/Anthracite

Re: Stove paint inside?

PostBy: 2001Sierra On: Sat Sep 15, 2012 11:45 pm

I got my new Keystoker 2 years ago. Cleaned the mill scale off the inside and painted it with POR manifold paint. I am dissapointed to say the least. The ash sticks to the paint like glue, and scraping the stove at the end of the season is not easy. I am welcoming the day it has all burned off. From now on it is LPS3 and a light bulb :x
2001Sierra
 
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34
Stove/Furnace Model: Keystoker 90 Chimney Vent

Re: Stove paint inside?

PostBy: Rob R. On: Sun Sep 16, 2012 5:50 am

Scottscoaled wrote: The ash fused with the paint and made buildups that were a pain to remove. Any place that was "cured" brushed off easy. I would think that the bare metal would transfer heat better.


And then the paint starts to peel and acts like a bunch of little "shelves" for flyash. No thanks, bare steel for me...keep the EFM burning or put a light bulb in it to keep corrosion at bay.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: Stove paint inside?

PostBy: daluds On: Sun Sep 16, 2012 11:15 pm

Thanks for all the replies. The boiler is in very dry basement so I suspect its the acid as Richard mentioned. I'll keep cleaning it more than once a year.

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Stove paint inside?

PostBy: SMITTY On: Mon Sep 17, 2012 12:14 am

Moisture + flyash = sulfuric acid.

This is what happens to stainless steel left in a VERY humid coal stove firebox, covered in flyash. First pic is how they looked when I started getting the stove ready in the fall. Second pic is after wire wheeling all that rust & crap off them. 3rd pic is a super close-up of the cleaned surface. You can see how the acid just ate the metal away to nothing:


Image

Image

Image
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: Stove paint inside?

PostBy: I'm On Fire On: Mon Sep 17, 2012 7:28 pm

I just vacuum it out then put four containers of Damp Rid in it. Although this spring I did spray the Hopper with LPS3.
I'm On Fire
 
Hand Fed Coal Stove: DS Machines DS-1600 Hot Air Circulator

Re: Stove paint inside?

PostBy: jrn8265 On: Tue Sep 18, 2012 7:29 am

Please do not paint the inside of your stove!!

I did this and regret it on my koker.

The paint will peel regardless of what you use and flyash sticks to it and it's all down hill from there.

I did this 3 years ago and am glad that most of the paint has peeled off and will never paint it again.

LPS for me only!!
jrn8265
 
Stove/Furnace Make: Keystoker Koker
Stove/Furnace Model: Koker 160

Re: Stove paint inside?

PostBy: daluds On: Tue Sep 18, 2012 12:11 pm

Thanks for all the posts. I scrapped then power brushed all the metal surfaces, lightly sprayed it with baking soda/water (interesting chemical reaction in some places), let it dry, and then sprayed with WD40 to keep it from rusting until I can figure out how to replace the burner bushing.... I'll provide pictures, but wish I had a picture before I cleaned it. I think the draft inducer creates more scale build up from the wet bagged coal. My home made dust collector with cyclone works great! I was surprised at the fine particles it collected in the bucket rather than in the bags.

Dave
daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Stove paint inside?

PostBy: freetown fred On: Tue Sep 18, 2012 12:16 pm

Sounds real good Dave. KISS--you didn't think your homemade was going to work that well???? shame on you toothy
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Stove paint inside?

PostBy: 2001Sierra On: Tue Sep 18, 2012 9:54 pm

jrn8265 wrote:Please do not paint the inside of your stove!!

I did this and regret it on my koker.

The paint will peel regardless of what you use and flyash sticks to it and it's all down hill from there.

I did this 3 years ago and am glad that most of the paint has peeled off and will never paint it again.

LPS for me only!!

AMEN to this,Why didn't this post exist 3 years ago :oops:
2001Sierra
 
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34
Stove/Furnace Model: Keystoker 90 Chimney Vent

Re: Stove paint inside?

PostBy: daluds On: Wed Sep 19, 2012 11:23 pm

Here is photo of my home made dust collector with cyclone from an old navy ship. I was clogged with something so they disposed of it in the junk yard. I cleaned it up and painted it. Also picture of inside the boiler that I am cleaning.
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daluds
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice
Stove/Furnace Make: EMF
Stove/Furnace Model: DF-520

Re: Stove paint inside?

PostBy: freetown fred On: Thu Sep 20, 2012 7:40 am

Now that's what we're talkin about--ya done good :)
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix