Test MHA-1809
January 25, 2018
Red oak, same fuel batch as last test series of 2017
Log cabin stacking, top ignition
62.0 lbs including 2.0 lbs kindling
21.5% moisture. 2345 stacking.
Pisla HTT 602 door, 22" wide
Austrian eco firebox, see http://www.heatkit.com/research/lopez-2014-03-01.html
This series is a "Substantially Similar" study for possible use in certifying factory made heaters,
to allow laboratory testing on one model to apply also to variations in the heat exchanger on that model.
For this series, we have modified the chimney to be substantially equivalent to NSPS (EPA) certification testing, which
requires the exit to be inside the laboratory at a height of 15' +/- 1'.
Height of T is at 17'.
T is 7" diameter, as is the chimney below. This is vented above by 6" diameter insulated chimney.
The T bleeds air into the chimney and brings the pressure at the junction to 0, making it the equivalent
of a 17' high inside exit chimney.
Condar spreadsheet results, calculated at 90 minutes.
With the eco-box, the test is over when the air supply is closed. Remaining charcoal would normally be burned in the next fire.
Testo
gas graph. 
Fuel load
Pieces are stacked in order of increasing weight.
Red oak, same fuel batch as last series of 2017
Log cabin stacking, top ignition
62.0 lbs including 2.0 lbs kindling
21.5% moisture.
Burn sequence.
Time lapse taken at 2 minute intervals, fixed focus and fixed exposure.
This page was updated on January 30, 2018
This page was created on January 27, 2018
