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2009 Heater Tests at Shawville

Test HK-K23
February 12/09

Very warm heater - large load yesterday, with damper closed, weather warmer than during most of the testing.
White Birch, 20% moisture
Very small pieces. 16 pieces, 4.5 lbs kindling, 61.4 lbs total
Pieces stacked front to back. Kindling on top.
Sluggish start. Chimney was cold, 59F. Slight spillage on start. Water condensed on the glass, big CO spike.
Data for calculation stopped at 90 minutes, when air control was closed.
Cold air bypass open. Doors not taped. Flue damper shut 2 hrs after air was shut.

Animation HK-K
Animation, 2 minute intervals.
Notice the window fogs up with moisture in the third frame, 2 minutes after lighting, due to a bad
start (cold chimney).

gas analysis
Flue gas
Note: time on gas graph is offset by 8 minutes.
Note low intitial stack temp. Test starts at 8 minutes on the graph.
Huge CO spike due to stalled start from cold chimney.
Very small wood, tightly stacked. CO spike is moderated and spread out, peaking at 50 minutes.
Reasonably low PM, moderately high CO. A good illustration of the lack of direct quantitative relationship between
the two emissions types.

TESTO Excel data file

Huge initial spike from the bad start. Not really reflected in the final number, which is a reasonable 1.12 g/kg.

Condar Spreadsheet Results
Condar Spreadsheet Results

Condar Spreadsheet (includes detailed fueling data)

Fuel stack. Front to back, two large pieces on the bottom. Second row stacked tight to the
back, to prevent premature ignition from the grate.

fuel pile
Fuel pieces, numbered 1 - 16 from heaviest to lightest piece.


This page was updated on January 18, 2010
This page was created on February 12, 2009