Happy New year and a warm winter's day to all pellet experts. Just installed my first breckwell Sp8500. in a house of 2800 square ft the heat output is low. temp in house if barely getting up to 60 degrees. I have the heat range at 2 and the mode on manual. I think I have the draft fan at 4 . I notice that not all the AC ducts are heating- whats up with that? also I need a warmer house. should I set the heat range to 3 or 4? doesn't that use more pellets at that level... how is that supposed to work? This is only my second full day of using the furnace and I used 3 bags of pellets at a heat setting of 4 on the first day so I adjusted it down. House wasn't an warmer then. What is your best recommended settings for optimal heating of say 66-68 degrees. thanks.