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2014 Heater Fuel Tests at Shawville

Test HK-M24
March 6, 2014

White birch cordwood.
4 lbs kindling on left side. Newspaper 2/3 up the kindling pile.
49.6 lbs including 4.00 lbs kindling
15.5% moisure (estimated)
Stack temperature corrected for height.

Pisla HTT 602 door, 22" wide
Austrian eco firebox, see
Custom air frame, setup "D"
Rear grate closed

Condar Spreadsheet Results
Condar Spreadsheet Results

Condar Spreadsheet (includes detailed fueling data)

Animation,  5 minute intervals.  Newspaper is located 2/3 up the kindling stack. Very staged start.

See burn videos, below.

gas analysis
Flue gas
There was a pole at 120 minutes, not captured on this graph, but visible on the full graph, below,
and on the opacity graph.

TESTO Excel data file

Testo graph
Testo gas graph, entire cyle

Opacity graph. 
Note very clean start due to staged kindling. Some PM as pile catches and until maximum flaming decreases, at 35 minutes.
Note the poke at 120 minutes. The two large bottom logs were buried under a pile of coal - characteristic of this
firebox design, which has no bottom air at all.


White birch cordwood, loose barch removed. Largest pieces were placed at the bottom, smallest pieces at the top.

Stacked in firebox

Burn sequence

This page was updated on March 6, 2014
This page was created on March 6, 2014