Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

BTW, for Mica sheet that I got before this project I am trying to do now.

McMaster - #85825K42 Flexible Electrical-Insulating Mica, 23" x 39", 0.008" Thick $18.66 and you get a ton of it.  It comes in a rather large flat box!

This is how it is coming out on my cutting board - just unsure if I need even more sheets cut.  There is one now for the base, two strips, and the a cover to go over the strips.  I don't know if I should do one or two more.  BTW, this photo is for an Empire #90, which I been talking about this same topic (heater creation) in my post.

I also need to figure out how to attach the two sides.  They are wrapped individually and then are tied together with a little bit of metal (I think the same as the power tabs).  But the one on this heater just fell apart when I tried to lift up the tabs.  Now I haven't anything in my "supplies" to tie the two halves together.

The mica insulating sheets I’m using are about .007” thick. I wind the nichrome ribbon around two strips and I make sure I have at least two layers between the heater and everything else. No problems so far.
I am not at all familiar with how the horizontal boiler heaters are constructed. I only have one engine like that that needs a heater and the original one was gone when I got it.