After waiting several months we got our Valcourt Waterloo Arched zero clearance installed. Did a few break in fires. I have it central in a 2200 sq ft single story home. Needless to say, this is the first time I've struggled to keep a fireplace from burning too hot! First full fire our house was 79 degrees and it was 15 degrees and windy outside. I didn't sleep well lol. I have no need to run my natural gas forced air heat in the last three days since we got it. We'll see how it does in -20 but so far it's outstanding! Looking forward to getting the hearth finished which I'll be doing over the winter. I hadn't considered the blower kit but I am now debating it before I close up the wall. It could be tied into my forced air system, or I'll run it to my garage. Either way I forsee the need to offload some BTU's to another location given it's output.