~*~vvv~*~ said:
the light dimmer cut 30w from the combustion blower which is running quieter. slowed exhaust allowed for lower setting of pellet feed while keeping the fire from going out intermittently. glass, which gets hit by the burnpot output, is getting ash on it more but the ash wipes off with paper. exhaust outside is clear, not smoky.singlewall exhaust pipe is under 150*f , actual exhaust temp ~220*f.............stove runs radiant & room blower dont come on hardly. fan constantly blowing on exhaust pipe from rear of stove cools the pipe ala Magic Heat style
So whats the advantage of running it without the room fan coming on to extract heat off the exchanger ?
The stove wasn`t designed for radiant heat alone. The heat exchanger method of extracting heat from it is best.
Originally on #1 heat setting of my P-38 (very low flame) my stove distribution fan would shut down but the radiant heat off it was very minimal and since the control board didn`t allow the distribution fan to run too often , most of the heat went out the exhaust. I did some rewiring to allow for full time manual variable speed control and I can now get close to 40 hrs from a bag on #1 heat setting and still get a fair amount of heat from it. I didn`t screw with the combustion system.
Of course the Englander PDVC flame control on the lowest settings aren`t as exacting as what`s on the Harman P-38 and the Harman will provide a longer burn from a bag but my PDVC works pretty darn good as it is and I don`t see a lot of room for improvement in it`s design and especially not with what you are doing.