100-Gallon Gas Water Heater Comparison Table

Ultra Low Nox
BRAND MODEL.NUMBER GALLON.CAPACITY BTU.INPUT.PER.HOUR ENERGY.FACTOR FIRST.HOUR.RATING DEMENTIONS
Rheem PRO+G98-75N RH49 198 75,000 .49 135 57 3/4 X 27 1/4
Rheem GN100-200 (COMM) 100 199,900 .98 264 60 X 30
Bradford White M-I-100T6BN (TALL) 100 85,000 .50 95 69 X 28 1/4
Bradford White U-100T6RN (SHORT) 100 85,000 .50 92 57 X 30
A.O. Smith FCG-100 98 75,100 .49 81 68 X 27
A.O. Smith BTH-199 (COMM) 100 199,000 .97 300 75 X 27 3/4
State GS6 100 XRRT 98 75,100 .50 81 73 5/8 X 21 1/4
State D-100T-199-AS (COMM) 100 199,900 .81 194 68 5/8 X 27 3/4