This Grizzly Insert came with the house and has been in it for many years from what I can tell. I have had nothing but problems with keeping a fire in it since day one. No matter the coal bed not matter the side air control it always dies out. Two things, it has no flue dampener and the original fans diesel so I got new ones from a stove store. It has no thermal control on it it’s either switch on or off. I’m also noticing then when I hold a flame to the air intakes on the side, the blowers are drawing suction out of the intakes...so that seems to be a problem. Also there are no sides around the blower and it seems as maybe once there was so that is a question I’m looking to have answered. Also I have a feeling they if I had a thermo controlled fan that this would help as when the fans were off the intakes could pull fresh air. Pictures to define. I’m at help would be greatly appreciated. We have a Monarch add a furnace downstairs which usually keeps up but these frigid zero nights I have to run both fires to keep it 68-70. Also I’m seeing that this is some kind of limit switch that is not hooked up here. I guess the stove place didn’t see it necessary. Any advice if I can hook this in to solve my on off problem would be great. Thanks.