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IFGC Appendix E,Table E-1 <br /> Residential Combustion air(Required Interior Volume Based on Input Rating of Appliance) <br /> Input Rating Standard Method Known Air Infiltration Rate(KAIR)Method(cu ft) <br /> (Btu/hr) <br /> Fan Assisted or Power Vent Natural Draft <br /> 1994to present Pre-1994 1994to present Pre-1994 <br /> 5 000 250 375 188 525 263 <br /> 10 000 500 750 375 1 O50 525 <br /> 15 000 750 1 125 563 1575 788 <br /> 20 000 1000 1500 750 2100 1050 <br /> 25 000 1 250 1 875 938 2 625 1 313 <br /> 30 000 1 S00 2 250 1 125 3 150 1575 <br /> 35 000 1 750 2 625 1 313 3 675 1 838 <br /> 40 000 2 000 3 000 1 500 4 200 2 100 <br /> 45 000 2 250 3 375 1 688 4 725 2 363 <br /> 50 000 2 500 3 750 1 675 5 250 2 625 <br /> 55 000 2 750 4125 2 063 5 775 2 888 <br /> 60 000 3 000 4 500 2 250 6 300 3 150 <br /> 65 000 3 250 4 875 2 438 6 825 3 413 <br /> 70 000 3 500 5 250 2 625 7 350 3 675 <br /> 75 000 3 750 5 625 2 813 7 875 3 938 <br /> 80 000 4 000 6 000 3 000 8 400 4 200 <br /> 85 000 4 250 6 375 3 188 8 925 4 463 <br /> 90 000 4 500 6 750 3 375 9 450 4 725 <br /> 95 000 4 750 7125 3 563 9 975 4 988 <br /> 100 000 5 000 7 500 3 750 10 500 S 250 <br /> 105 000 5 250 7 875 3 938 11 025 5 513 <br /> 130 000 S 500 8 250 4 125 11 550 5 775 <br /> 115 000 5 750 8.625 4 313 12 075 6 038 <br /> 120 000 6 000 9 000 4 500 12 600 6 300 <br /> 125 000 6 250 9 375 4 688 13 125 6 563 <br /> 130 000 6 500 9 750 4 875 13 650 6 825 <br /> 135 000 6 750 SO 125 5 063 14175 7 088 <br /> 140 000 7 000 SO 500 5 250 14 700 7 350 <br /> 145 000 7 250 10 875 5 438 15 225 7 613 <br /> 150 000 7 500 11 250 5 625 15 750 7 875 <br /> 155 000 7 750 11625 5 813 16 275 8138 <br /> 160 000 8 000 12 000 6 000 16 800 8 400 <br /> 165 000 8 250 12 375 6 188 17 325 8 663 <br /> 170 000 8 500 12 750 6 375 17 850 8 925 <br /> 175 000 8 750 13 125 6 563 18 375 9188 <br /> 180 000 9 000 13 500 6 750 18 900 9 450 <br /> 185 000 9 250 13 875 6 938 19 425 9 713 <br /> 190 000 9 500 14 250 7 125 19 950 9 975 <br /> 195 000 9 750 14 625 7 313 20 475 10 238 <br /> 200 000 10 000 15 000 7 500 21000 10 500 <br /> 205 000 10 250 15 375 7 688 21 525 10 783 <br /> 230 000 10 500 15 750 7 875 22 O50 il 025 <br /> 215 000 10 750 16125 8 063 22 575 11 288 <br /> 220 000 11 000 16 500 8 250 23 S00 11550 <br /> 225 000 11 250 16 875 8 438 23 625 11 813 <br /> 230 000 li 500 17 250 8 625 24150 12 075 <br /> 1.The 1994 date refers to dwellings constructed under the 1994 Minnesota Energy Code.The default KAIR used in this section of the table is <br /> 0.20 ACH. <br /> 2.This sedion of the table is to be used for dwellings constructed prior to 1994.The default KAIR used in this section of the table is 0.40 ACN. <br />