I originally purchassed a GH built hawken two years ago. unfortunately last september I noticed some leaks in the back of the stove. getting the warranty honored was a nightmare, and took nearly 3 months. I was installing this new hawken 1100 in December. the two stoves are definately not interchangeable. the 1100 burns way too much wood, and the door leaks a black juice that builds up into icicles. I have contacted my dealer, and Dave at hawken about these issues. I have also gotten in touch with another dissatisfied owner of an 100 just a few miles away. he has to load the stove 3 times a day. I found a design flaw with these stoves, and found a way to reduce the consumption considerably. I am very discouraged by the lack of customer service offered by Hawken, and poor crafstmanship in the furnace. they claim to have cut out the middleman (global Hydronics) to save the customer money. They are selling inferior products and ignoring their customers.
oh, don't be supprised when the armor flex seal tight conduit breaks by the door, everyone I spoke to has this issue.
to make a long story short, don't waste your money on a Hawken.
Ouch!