I have a 1.5 yr old Vermont Casting Encore catalytic and can't get it to burn below 550. I have an 8 inch SS liner installed in my chimney (28 feet to top) and have recently added a damper (VC advise) with no effect. I've checked all of the seals for leaks and the doors and ash pan are tight. With the stove air vent closed, the liner damper closed and the catalytic on, it consistently burns at 550. I need to fill the box every 3 hours and it would be great to be able to turn it down so I can burn the stove for longer periods. Any thoughts and thank you in advance for you responses?
Adrian
Adrian