Smith Mills 1100 question

Scott Toenniessen_3

For anyone familiar with this beast...

Smith Mills 1100 circa 1970. It has a large cast iron access door above the burner held on with 8 studs/nuts. There is a small, flip up, hinged door that is part of this larger door for viewing the flame. It appears there is supposed to be a layer of something between the access door and the boiler (a sheet of asbestos or some other insulation that can take high heat?) and also on the inside of the smaller, hinged door. There are bolts/nuts which appear intended to hold this in place. Looks like it should be a quarter inch or so thick. Needless to say, on mine this material is long gone. Any ideas what should be here/can be used to replace it?

My service people have no idea and we don't have the needed documentation

Thanks

ed wallace

smith boiler

have your service people get some target wall material and cut it to size any oil heat supply co carries target wall insulation

Firedragon_4

Ed's right,

just get some kaowool of equiv. A this point they may have to drill the doors and make some stays for it from pieces of sheetmetal.

That's a great ole boiler, always one of my favorites.

Scott Toenniessen_3

Thanks

Thanks for the info. I'll pursue this.

Yes, this seems like a great boiler. I've owned this house about a year now. Luckily this unit was in a dry basement and was very well maintained - the paint on the jacket still looks factory fresh after 30+ years.

The original Carlin flame retention burner is in it and runs very nicely. I didn't realize flame retention burners were around in 1970 - thought that was a later development.

Thanks again for the info. Replacing this may cut stand by losses a bit.