Scottaw wrote:I'll have to play around with the ash door, I've just been keeping them closed and letting the thermostat do all the work. It seems to be working fine as is, but I'm interested to see how it works with the ash vents. Is there a fear of over fire? I assumed with them closed, the back flap would control any chance of a runaway fire.
Are you looking to use the ash door vents only? or will the thermostat still be in use? If you plan to use the ash vents only, you'll be adjusting it a lot unless you have something to keep the draft pressure steady like a barometric damper..
This is how I run my furnace, no thermostat.. I just adjust my primary air setting to the desired heat output and the barometric keeps it steady..