This is my comment on drpinard, I'm a newbie to the world of owb's, I did my research prior to buying my portage and Maine BL 34/44. I am glad I did, because this unit fulfills my every need. Initially I was all set to go with central boiler, I had read the forums, unfortunately I had not ran across this one. I don't know much, I'm just a simple guy. Though when I read of the problems associated with the central boiler line, coupled with the fact that the only central boiler dealer was 2 hours away and not to interested in returning phone calls, that was a red flag. The ultimate reason I went with P/M and not C/B was the fact that it appears that the manufactures of Central Boiler could give a damn about their product. Customer service is a term they have yet to conceive. Every thing I read about them was negative. Their response is contact your dealer, ( pass off the problem to some one else) even though they were responsible for what they engineered. Thanks to the dealers that carry the line. Other wise they would recieve no help. To me P/M has a straight toward design,no computer board to go bad, my main concern. If and when I encounter a problem its seems like a straight toward repair. There are no P/M dealers in the southwest. The only issue I encountered was resolved by Brian Martin of P/M. I called on a Saturday morning, Brian resolved the problem (bad pump) 2nd day air ups. Never once did I hear call your dealer, in a rude tone, as I have read over and over about Central Boiler. My only regret about P/M is that my Bl will out live me, and I'll have to come back to life. So I can buy a optimizer!!
Thanks guys