Wow, I went to another forum, and did a Hardy search, and I feel like scum of the earth now.
According to them they don't last more than a few years, smoke the entire world up and use more wood than an army could cut.
My original H2 is still going strong after 15 years, same pump, solenoids, etc I did have to replace the fan after 13 years. Daughter and son in law have it now.
I use far less wood now than I did, I used the H2 for years with uninsulated pipes. It now has insulated pipes.
Tuesday night it got down to 17 degrees, I did about a 3/4 fill at 8 pm, the house was set on 75 degrees. the shop on 55 and I still had about 1/2 a fire box of wood left at 5 am. I put a few chunks in and when I got home from work at 4 pm still had wood.
Last night I put a little more wood in and it only got down to 22, still had most of the wood left.
What more can you ask for?
I still haven't seen the smoke everyone goes on about. Maybe for a few minutes but nothing more than any wood stove I have ever seen.
Once the blower shuts off all I can see is a heat pattern in the air and maybe a wisp of smoke.