I'm finished with installing all the duct work!! Pics later tonight.....I still have to adjust some hangers, tape a few duct work joints, patch some drywall, clean, etc.... I am pretty proud of the duct work install, quite the project the last two weeks. I am highly impressed with the PF100 and extras (pelletexcel flue/vent, dayton blower, MWP) I am very thankful and impressed with all of you and your help/encouragement and suggestions along the way Thanks guys... I have about $400 worth of duct work to return...With the cash I get back I'll be getting another pallet or two to add to my two tons already. In November I'll be picking up 2 more tons after that. Last night it went down to 45 here in town...I only went through half a bag in the hopper...house stayed 71-74 all night and day. Pretty impressive thus far of the systems (pf100 and ductwork) for the window sq. ft and tall ceilings in my house. Question for ya: What have people with the pf100 been seeing for electric use per month? I calculated increase of $15/month running 8hours/day with the amps it is drawing....I did not account for the combustion blower and the run time of that.... However my 6 circ pumps on the boiler and the feed pump/etc. on the boiler is probably $15/month when calculated...... So I personally shouldn't see an increase in power consumption. How about you guys????