Check this thread, it's a good read on Keystoker boiler and video of Ka6 running... You'll need to turn up the volume if you want to hear stove, they are super quitenuthcuntrynut wrote:I lookedat the Harman v3000 last winter in action, it is a descent boiler. With that said my thought on boiler tubes is that water should run through the Shell not through the tubes. Does it matter? no, probably not. There are many Harman pellet stoves up here and they are without a doubt the best, and that is also not the first time I've heard about their company support. that's just sad and it will hurt the entire company in time I believe good product or not.
The wl 110 in my belief is an awesome boiler, that has been around only five years or so, the Keystoker
60 yrs. I have heard both companies are great to deal with. My knowledge on coal is limited to what I read, however I do know boiler systems & designs, and I like round boilers over square ones. Mainly because of trapped heat, water temp. layering and corrosion issues to name the big ones. ISo these are the pros and cons of both in my opinion.
Keystoker KA-6 Journey Begins