I was thinking that, too. Only need an inch or so for a Keystone, which seems like it would be about the perfect stove for that house.
Called up Woodstock - that 22.75" number ended up being to the center of the flue, putting the top of the flue at 25.75" - three quarters of an inch too high. I was all excited when I called up assuming it would fit (whoops). They look like really nice stoves with great reviews, though a little pricey it seems.