Hot Bed Speed Enhancer 8x8 Bed

I have had trouble getting my Hot Bed to heat quickly or to heat over 100°. I have found, simply placing a sheet of aluminum foil (shiny side down) does wonders. My bed takes nearly 30 minutes to get up to 98° and I have no patience to see if it ever gets over 100°. With this frame, the Hot Bed will heat up to 100° within 10 minutes and remain there after I remove the foil. I simply remove the frame from the bed once it makes Hot Bed temperature and during the Hot End warming process. I ty