Hi. I'm new to the forum. I have been reading extensively on the forum as I just bought a relatively new house (built in 1989) that is heated with fuel oil. The house is well insulated and there are no apparent drafts. There is a Vermont Casting Vigilant Wood Stove in the family room vented through a chimney which sits in the center of house. I would like to remove the Vigilant and put in a Harman P68 pellet stove to the heat the mainfloor and upstairs (~ 2200 square feet). The floor plan is open, unfortunately the ceilings in the family room are cathedralized - at the highest point, probably clost to 20 feet. There are 3 ceiling fans installed. I have a few questions... 1) What is the optimal range for the P68 to operate at? I'm wondering if there is any chance it might actually put out too much heat, causing us to run it at a lower temperature than it was optimally designed for and if maybe I should put in a stove with lower BTUs. I doubt it, but thought it was worth asking considering how expensive they are. 2) I've read different opinions regarding OAKs. If it is important to use one, I'm not sure how I could install one given my floor plan because the stove will not be installed along an exterior wall. Any suggestions? I'm assuming I could not place the OAK into the chimney. 3) Is it important to extend the stove piping all the way up to the top of the chimney? The Harman manual suggests that either set-up can be performed but does not suggest if one way is preferred over the other. 4) How noisy is the P68? I'm assuming it won't interfere with watching TV and conversation in the family room? Thanks for the help.