Outdoor Wood Furnace Info

Outdoor Furnaces - Manufacturers WITH EPA-Certified Models => Central Boiler => Topic started by: ST98 on January 30, 2017, 08:39:53 AM

Title: Heat shield on 6048
Post by: ST98 on January 30, 2017, 08:39:53 AM
I have a cb 6048 and one of the two heat shields on the door is way warped and has a hole burned through it. The one behind it is fine. I was just going to plasma cut a piece of steel and replace it. Does anyone know if it's some special steel they use on the door heat shields?  I need to move my fire a little further back I guess.

Thank you
Title: Re: Heat shield on 6048
Post by: mlappin on January 30, 2017, 08:59:38 AM
Probably just mild steel like the rest of the stove, would be cute to find a piece of 409 stainless to replace it with.
Title: Re: Heat shield on 6048
Post by: slimjim on January 30, 2017, 09:08:38 AM
They seem to have an issue with the door, perhaps they need a special steel to prevent it from warping or burning out.
Title: Re: Heat shield on 6048
Post by: Walleye on January 30, 2017, 05:47:30 PM
How close to the door do you keep your logs? I try to keep mine back at least 8 to 10 inches from the inside of the door frame. My heat shields are going on 5 years old and still look like new. If the creosote on them starts to turn white then I move the fire back.
Title: Re: Heat shield on 6048
Post by: fireboss on January 30, 2017, 06:39:31 PM
Is it warped or is it from closeing the door with wood sticking out and forcing the door closed ? just asking
Title: Re: Heat shield on 6048
Post by: boilerman on January 30, 2017, 09:03:39 PM
The double heat shields are hung on two shoulder bolts allowing them to float, with an air gap between them and the inner cast door. They are made out of 10 gauge mild carbon steel and greatly reduce heat on the inner cast door and solenoid behind it. The CB cast door used for over 20 years on their Classic furnaces is one of the most durable doors ever. The shields are just a low cost sacrificial sheet of metal easily replaced if necessary. I found burning the wood near the the door frame kept the frame area drier and creosote from building up on the air intake door flap area, plus pulling coals forward to the front door and loading near door allows the ripple top and rear baffle to maximize heat transfer and efficiency of that model.
Title: Re: Heat shield on 6048
Post by: ST98 on February 07, 2017, 03:07:00 PM
I keep the wood maybe 10 inches to a foot back. It's warped into the stove, so the hitting the door with wood wouldn't be correct. I don't beat it closed but if I did it'd be flat... Probably gets red hot and then sucks into the stove with the draft. The one behind it is fine.

Thanks for the help. Hopefully the bolts will come off easy.