I am in the process of installing my first pellet stove in my basement.we have recently had the home remodeled turning it from a ranch style into a cape.my goal is to help with heating costs now that we have more living space.the first floor of the home has very limited space so the basement was my only option.the stove I purchased is a englander and heats 2200 sq ft.these forums helped me greatly in my purchasing decision and instalation method, so thanks to all.I am running the vent out of the concrete and up past the roof line, how far past the roof should I go? I want to make sure the unit has a natural draft in a power failure. I rented a hilti hammer drill and 4" masonry core bit for the hole from the local rental shop.The foundation is poured concrete and has rocks mixed in.Im am about 6 1/2 inches in and noticed the bit lost a few teeth, I did not hit any re-bar, so my guess is rocks mixed in the cement foundation took its toll on the bit.the only thing the rental shop said was "it doesnt like re-bar and these bits are expensive". so with about 2" to go im going to continue and hope the rental shop doesnt try and charge me for the bit.Once the hole is complete the rest should be easy.my foundation also does not have alot of exposure on the outside, so I dug out where the pipe will exit and am installing a steel basement window well around the vent. I noticed a few other posts for basement installs and wanted to share how my project was going.aside from the bit issue everything seems to be going smoothly and will post pics when completed.