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2010 Heater Fuel Crib Tests at Shawville

Test HK-L11
January 25/10

Series 3: Test #1 of a 2 test pair with matched cribs. Warm heater. See fuel notes.
Colorado M-4 (MHA Fueling Protocol) cribs spruce at 16.1% average moisture.
Loading factor 0.13 . Reload
3.75 lbs kindling + 18.8 lb crib (16.10 % av moisture) + reload w. 16.8 lb crib (16.10% av moisture).
Efficiency is calculated at 95% oxygen recovery (Colorado method).
Stack temperature corrected for height.

Condar Spreadsheet Results
Condar Spreadsheet Results

Condar Spreadsheet (includes detailed fueling data)

The batch of 2x4's used for the last 4 tests has been very variable in moisture, both piece to piece,
adjacent pieces cut out of the same stick, and particularly from the surface to the core. A more
detailed description of the matching technique used will follow. This is #1 of the third back-to-back test from the same
batch. Obtaining more uniform fuel will be the next task.

Animation, 2 minute intervals.

gas analysis
Flue gas.

Testo graph L11
Graph from Testo analyzer. 30 second sampling intervals.
The green line tracks the CO/CO2 ratio.

TESTO Excel data file


fuel load
First crib.

Crib moisture stats. This test used the top 2 cribs.

Burn sequence
Burn sequence.

This page was updated on February 8, 2010
This page was created on January 30, 2010