I have a brand new summers heat 55-shp-10 stove still on the pallot. My question is that after inspection there is a question on a part I noticed that might be defective?? Looking at the back of the unit on the bottom there is a visable heat covered ground wire. The protection sheath of nomex or whatever it is ,is freyed like you pulled a thread out of a sweater and it raveled up. Not that big of a deal, just wondered if it was supposed to be totally encased for heat protection, and should the protection sheath go all the way over the wire from end-to end. Just was curious.