swyman wrote:I finally hooked up the draft gauge today and these pics represent the maximum I can run my combustion blowers. Draft is slightly low at .035 but I figure I can run the blowers with a tad more velocity for more heat? I also pulled the 2 Tee cleanouts I had in originally and exchanged them for 90* elbows with little to no difference. I also bypassed the rheostat on the power vent just to make sure I had full velocity. Question is, would a chimney solve all my problems? If so which type, masonry with tile liner or stainless triple wall? Only other thing I guess would be a larger power vent but I am very PO'ed right now seeing the power vent was a $700 option and I can even come close to running this thing at capacity. It's 25* outside with no wind and cannot maintain temp! Please help!
Side note, I ran this thing with a single burner last week while it was warmer and played around a little bit with the settings and let me tell you this can produce one hell of a fire but just can't get draft out with 2.
You cannot push anymore air into the combustion chamber than
the two stoker beds will allow and what the power vent fan will pull
through the squirrel cage blowers as they are not positive displacement fans.
Until you decide whether you want to have chimney built for this system you
should use one burner making sure that the opposing burners air shutter is closed.
if you are not burning buckwheat coal I would consider trying that size coal for the
boiler with the system.