Pauliewog wrote:On my 140 dual feed, both combustion blowers run at the same time even if only the front or rear burner is lit.
I take my manometer reading a few inches from the exhaust outlet just below the Barometric Damper.
Question, Do both blowers run even if one of the burners is unplugged.
And BTW , The manometer readings need taken in 2 locations on stokers, outside stove before the barometer and inside stove or "over the fire", near stove door.
Even w/ only 1 burner it is possible to blow more air in than draft setting at barometer can allow removal of , and in that condition you may have slight positive pressure and stove fumes leaking.
Stokers w/ their blowers need set up w/ a manometer more so for CO saftey than for heating performance...add a second blower/burner, and it's even more so.
I'm glad you posted that question. I am heating approximately 3,400 Sq ft on three levels. 90% of the time I keep both burners lit up on low idle. The few times I cut it back to one burner I just unplugged the front feeder from the thermostat control box leaving the combustion fan running. You got me thinking so I called the manufacturer today. They told me to disconnect the combustion blower also that there was no need to run it. Thanks!
when I purchased the furnace it was equipped with a fume / over temperature safety switch for use with a power vent. I replaced our 30 year old coal coal hand fire with the 140 stoker utilizing our flue lined masonry chimney.
When I first set up the Barometric Damper I used the port from the over temperature safety switch for my "over fire" readings. This tube is located on the side of the firebox approx.6" above the ash door.
I just disconnected the front feeder and combustion blower about an hour ago and checked the draft. It fluctuates between -.03 and -.04 as per manufacturer recommendation.
Two Co 2 alarms..... I totally agree, You can't be too safe.
Thanks again for your input !