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2009 Heater Tests at Shawville

Test HK-K18
February 7/09

Slightly warm heater - damper had been left open, with ashbox air control closed, no seal.
White Birch, 20% moisture
9 pieces, 4.5 lbs kindling, 61.6 lbs total
Pieces stacked front to back. Top ignition.
Secondary ignition happened at the rear grate, with charcoal remaining from yesterday (see animation)
Small, delayed CO spike at the beginning. Very good oxygen value
Data for calculation stopped at 88 minutes, when air control was closed.
Flue damper left open. Cold air bypass open.

Animation HK-K
Animation, 2 minute intervals.

gas analysis
Flue gas
Very even O2 curve, which is unusual. O2 a bit high. Will try again with smaller wood.

TESTO Excel data file


Condar Spreadsheet Results
Condar Spreadsheet Results

Condar Spreadsheet (includes detailed fueling data)

Fuel stack. Front to back, largest pieces on bottom, kindling on top.

fuel pile
Fuel pieces, numbered 1 - 8 from left to right, heaviest to lightest piece.


This page was updated on January 18, 2010
This page was created on February 7, 2009