EFM700
-
- New Member
- Posts: 6
- Joined: Sun. Jan. 26, 2014 12:03 pm
- Stoker Coal Boiler: Efm700
- Hand Fed Coal Stove: Estate Heatrola
- Coal Size/Type: Buck nut pea
How high should a bed of coals be in an EFM 700?
-
- New Member
- Posts: 6
- Joined: Sun. Jan. 26, 2014 12:03 pm
- Stoker Coal Boiler: Efm700
- Hand Fed Coal Stove: Estate Heatrola
- Coal Size/Type: Buck nut pea
I have been on this site for 4 straight days now. what a great site.
- Rob R.
- Site Moderator
- Posts: 18004
- Joined: Fri. Dec. 28, 2007 4:26 pm
- Location: Chazy, NY
- Stoker Coal Boiler: EFM 520
- Hand Fed Coal Stove: Chubby Jr
The fire is adjusted based on the size of the ash ring, not how high it is. But since you asked...when the stoker is working hard the fire should be slightly higher (maybe an inch?) than the top of the pot...not sunken in the center.
When the stoker has been running for at least 30-40 minutes without stopping, the fire should have about 2" of ash around it. The reason for this is that you don't want to blow air through ash, you want to blow it through coal that is burning. Air that is blown through ash just steals heat from the boiler on its way to the chimney.
To put it another way, when the stoker has run long enough for the fire to stabilize, you want the line between fire and ash to be along the inside edge of the pot ring.
When the stoker has been running for at least 30-40 minutes without stopping, the fire should have about 2" of ash around it. The reason for this is that you don't want to blow air through ash, you want to blow it through coal that is burning. Air that is blown through ash just steals heat from the boiler on its way to the chimney.
To put it another way, when the stoker has run long enough for the fire to stabilize, you want the line between fire and ash to be along the inside edge of the pot ring.
-
- New Member
- Posts: 6
- Joined: Sun. Jan. 26, 2014 12:03 pm
- Stoker Coal Boiler: Efm700
- Hand Fed Coal Stove: Estate Heatrola
- Coal Size/Type: Buck nut pea
Thanks