High Fire on a DF520

High Fire on a DF520

PostBy: chlop On: Sun Aug 18, 2013 11:41 am

Someone recently told me my fire seems to be very high above the pot----about two inches. Now, except for outfires during hot and humid days, the boiler has burned impeccably for the time I've had it, about five years. Right now, I have the low water temp at 130 and the high at 190, while the feed is at two and the air at about three. Anyway, should the fire be that high above the pot?
Stove/Furnace Make: EFM
Stove/Furnace Model: DF520

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Re: High Fire on a DF520

PostBy: Rob R. On: Sun Aug 18, 2013 12:01 pm

I have never seen what you described, even when running 8 teeth. Shut down and carefully check the burn plates for plugged holes...especially deep in the pot.

I suspect your feed and air settings may be partially to blame, for both the fire appearance and the outfires. When in doubt, try 4/4 and 2 minutes every half hr on the timer.
Rob R.
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy