We purchased a HI500 last year and if I could return it, I would. The design to have the smoke go up is right in front of the glass so every time you open the door, the smoke hits you in the face. There is absolutely no way to sit in front of this insert with the door open or even cracked. You can give the smoke full access to go up the flue yet no matter what you do, the smoke will fill your entire house within seconds. Also, the pictures on brochures make it look MUCH LARGER than it actually is. The glass is quite small, do not be fooled by the angles.