Since I got my evaporator late, I still need to put in the firebricks. It is definitley not warm enough for them to cure on their own, and I'm waiting on Patrick for another 4 ft section of smoke pipe, so I can't build a fire in it yet. I thought about heating up the sugarhouse with a kerosene torpedo heater. I will then mortar in the bricks over the ceramic insulation, then point the heater through the doors of the arch and cure the cement that way. The pans will be off and the arch will be covered by a sheet of metal roofing. Getting nervous because I have a ton to still do and the seasons coming up fast.