Return to Lopez Labs Home Page

2014 Heater Fuel Tests at Shawville

Test HK-M22
March 4, 2014

White birch crib. Ignition from both sides.
40.6 lbs including 3.75 lbs kindling
15.7% moisure
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.  Ignition from both sides. The left side caught and the right side caught very slowly. Right side was
boosted with additional newspaper.
See burn videos, below.

gas analysis
Flue gas
- Ignition from both sides. The right side was very slow to catch and was boosted with some extra newspaper balls.
See Testo graph, below, for entire burn.

TESTO Excel data file

Testo graph
Testo gas graph, entire cyle

Opacity graph. 
Clean start followed by a spike. Notice that there was PM until 85 minutes. While not high opacity, the PM after 50 minutes was 
noticeable in the additional power required on the Condar, and possibly heavier than apparent from the opacity. Ie., non-soot like.


3.75 lbs of poplar kindling at 15% moisture. The kindling was piled to either side of the crib, with newspaper underneath. The kindling
caught on the left side, but was slow on the right side. It was boosted on the right side with some additional newspaper balls.

White birch crib.

Stacked in firebox

Burn sequence

14 minutes, 240 fps

Note the gas plume catching intermittently, top left slot of crib

Note the gas plume catching from the left top slot of the crib

28 Minutes (photo is mislabelled) Note the plume is fully ignited.

Note the combustion at the horizontal air slot from the bottom member of the air frame.
Also note the combustion to the left.

Note the combustion at the bottom of the air frame, and to the left of the crib at the bottom.

Slow motion view of the combustion at the air frame.

This page was updated on March 5, 2014
This page was created on March 4, 2014