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Adjunct to ASTM E XXXX Wood Heater Cordwood Test Method ‐ May 10, 2017 Version
Cordwood Fuel Load Calculators ‐ 12 lb/ft
3
Nominal Load Density
Core 45 ‐ 65% of Total Load Weight, Remainder 35 ‐ 55% of Total Load Weight
Values to be input manually
For Usable Firebox Volumes up to 3.0 ft
3
‐ Low and Medium Fire
Nominal Required Load Density (wet basis) 12
lb/ft
3
Usable Firebox Volume 1.09 ft
3
Total Nom. Load Wt. Target 13.08 lb
Total Load Wt. Allowable Range 12.43 to 13.73 lb
Core Target Wt. Allowable Range 5.886 to 8.50 lb
Remainder Load Wt. Allowable Range 4.58 to 7.19 lb
Mid ‐ Point
Core Load Fuel Pc. Wt. Allowable Range 1.96 to 3.27 lb 2.62
Remainder Load Pc. Wt. Allowable Range 1.31 to 3.92 lb 2.62 Fuel Piece Moisture Reading (% ‐ dry basis)
Pc. # 1 2 3 Ave.
Core Load Piece Wt. Actual 1 2.70 lb In Range 20.6 23.8 23.9 22.8 In Range 2.20 lb 1.00 kg
2 2.60 lb In Range 22.3 24.2 23.1 23.2 In Range 2.11 lb 0.96 kg
3 2.60 lb In Range 21.4 22.3 18.6 20.8 In Range 2.15 lb 0.98 kg
Core Load Total. Wt. Actual 7.90 lb In Range
Pc. #
Remainder Load Piece Wt. 1 1.80 lb In Range 26.3 19.7 22.9 23.0 In Range 1.46 lb 0.66 kg
(2 or 3 Pcs.) 2 2.90 lb In Range 24.2 18.1 23 21.8 In Range 2.38 lb 1.08 kg
3 lb NA NA NA NA lb NA kg
Remainder Load Piece Weight Ratio ‐ Small/Large 62% In Range ≤ 67% Total Load Ave. MC % (dry basis) 22.2 In Range
Remainder Load Tot. Wt. Act 4.70 lb In Range Total Load Ave. MC % (wet basis) 18.2
Total Load Wt. Actual 12.60 lb In Range Total Test Load Weight (dry basis) 10.31 lb 4.68 kg
Core % of Total Wt. 63% In Range 45 ‐ 65% Total Fuel Weight Burned During Test Run (dry basis) 10.3 lb 4.68 kg
Remainder % of Total Wt. 37% In Range 35 ‐ 55%
Actual Load % of Nominal Target 96% In Range 95 ‐ 105%
Actual Fuel Load Density 11.6 lb/ft
3
Allowable Charcoal Bed Wt. Range (lb) 1.3 to 2.5 Mid ‐ Point
Actual Charcoal Bed Wt. 1.4 lb In Range 1.9
Actual Fuel Load Ending Wt. 0.0 lb Valid Test ≥ 90%
Total Wt. of Fuel Burned During Test Run lb. 12.6 lb
Pc. Wt. Dry Basis
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JURISDICTION AND THE PRESIDENT OF THE SOCIETY.
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CONSHOHOCKEN, PA 19428. ALL RIGHTS RESERVED .
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