I'm wrestling between the Heat-n-Glo Northstar and the Quadrafire 7100 . Firebox and fans are the same size according to manufacturing rep and features seem to be almost identical. The face is included with no choice on the Northstar but on the Quad you can choose between two but the local sales rep says this is why there is a difference of 900.00. What to do ...what to do...Anybody researched these two?