What size bolts

[George A]

Does anyone know what size bolts you use for the block off plates and the surrounding panels ?
3/8" ?
7/16" ?

Now that she's up and running for a few days and there aren't any leaks it's time to put the surrounding hardware on


Thanks
George

 

[coaly]

5/16 - 18
(3 on each side plus 3 across the top to attach heat divertor shield)
Instructions are on Page 9 in the manual and Page 10 has an exploded view giving all hardware sizes.

 

[George A]

Coaly, thanks for the response. I did review and download the pdf manual and read it, i was also looking for but couldn't find the size of bolt and nut for the draft caps. Any clue ?

 

[coaly]

1/2 - 13 N.C. Fully threaded to head.
Originals were 3 inches long with no markings on the head. (No markings are bolts that are not hardened).
The nut on the outside of door was a half nut, (under cap) but a full nut will work if you don't have them. A full nut was used inside door to lock the assembly tight to door. You will find some stoves using all half nuts, it's just what they had when it was built, or they were cheaper back then buying in bulk. If you can't find originals without markings you can file them off the bolt head until smooth. Unfortunately some over zealous welders thought it was necessary to put a little weld on the bolt and inner nut to prevent it from turning. They require grinding the weld off to remove the nut. Not fun.

Adjust as follows, to prevent the head from being below the surface of closed draft cap. (it takes a very thin walled socket to remove when the bolt is threaded too far into the door) Thread draft cap onto bolt lubricating with silver anti-seize or high temperature grease. Adjust bolt head to just stick out of cap enough to get wrench or socket on bolt head. This should be the closed position when installed. Thread nut on bolt down to cap, but not tight. Thread assembly into door, just snug. Hold bolt from rotating while installing nut inside door and tighten inner nut to prevent bolt from rotating.