Other OWBs

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The fun thing about this forum is rading about the other types of stoves out there. I was just reading a thread that mentioned Portage and Main OWBs so i went and watch a viedo about them. I really love my central Boiler e-classic 2300 , but i do have to say the Portage and main optimizer does look ike a very nice OWB as well.
This is the vido i just watched on youtube:
http://www.youtube.com/watch?v=bxwL5Sgf_Iw