KEITH SPECIALTY STORE
6791 Route 119 N,
Marion Center, PA 
15759-7216 U.S.A.
phone: +1 724-397-8838  
orders: +1 800-705-8838
fax: +1 724-397-2228
hours (ET): 8:00a-6:00p Monday-Friday,
8:00a-4:00p Saturday

All items are brand new stock - not used - not remanufactured - not liquidation

heating equipment comparison: forced-air gas furnaces

Sample models - many other models are available.
We can get most residential and commercial air handlers, furnaces, boilers, heaters, and heat pumps in three business days or sooner.
BTU =
British thermal unit (a quantity of energy that can heat one pound of water by one degree Fahrenheit).
BTU/h =
British thermal units per hour (the fuel energy used in one hour of continuous operation).
MBH =
thousand BTU per hour.
1 therm =
100,000 BTU (approximately 96.7 cubic feet of natural gas of typical purity).
1 MCF =
1000 cubic feet (of natural gas = approximately 1,026,000 BTU = approximately 300.691 kW·h).
1 kW·h =
3412.141 BTU.
29.3071kW =
100,000 BTU/h (100 MBH).

part number prefixes: CMP and MP = Ducane Fits-All; AU = American Standard.

gas furnace, upflow, single-stage

less than 45 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas38,000292.1%AmStandAUX1B040A9241A40"H x 17.5"W x 28"D$1280.0091-041

45 to 60 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas50,000380.0%DucaneMPGA050B338 1/4"H x 13 1/2"W x 29 1/2"D$560.0092-070
gas50,000392.0%DucaneCMPB050C347 3/8"H x 13 1/2"W x 29 1/2"D$880.0092-040
gas50,000392.0%DucaneCMPE050U347 3/8"H x 13 1/2"W x 29 1/2"D$880.0092-005
gas56,000392.1%AmStandAUX1B060A9361A40"H x 17.5"W x 28"D$1280.0091-046

61 to 80 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas75,000380.0%DucaneMPGA075B338 1/4"H x 13 1/2"W x 29 1/2"D$605.0092-075
gas75,000392.0%DucaneCMPB075C347 3/8"H x 13 1/2"W x 29 1/2"D$960.0092-045
gas75,000392.0%DucaneCMPE075U347 3/8"H x 13 1/2"W x 29 1/2"D$965.0092-010
gas74,0003.592.1%AmStandAUX1B080A9421A40"H x 17.5"W x 28"D$1255.0091-051
gas75,000480.0%DucaneMPGA075B438 1/4"H x 17"W x 29 1/2"D$630.0092-077
gas76,000592.1%AmStandAUX1C080A9601A40"H x 21"W x 28"D$1390.0091-056

81 to 110 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas100,000480.0%DucaneMPGA100B438 1/4"H x 17"W x 29 1/2"D$675.0092-080
gas100,000490.0%DucaneCMPB100C447 3/8"H x 17"W x 29 1/2"D$1075.0092-050
gas100,000490.0%DucaneCMPE100U447 3/8"H x 17"W x 29 1/2"D$1075.0092-015
gas94,000492.1%AmStandAUX1C100A948A140"H x 21"W x 28"D$1405.0091-061
gas100,000580.0%DucaneMPGA100B538 1/4"H x 20 1/2"W x 29 1/2"D$690.0092-082
gas93,000592.1%AmStandAUX1D100A9601A40"H x 24.5"W x 28"D$1545.0091-066

111 to 150 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas125,000580.0%DucaneMPGA125B538 1/4"H x 20 1/2"W x 29 1/2"D$745.0092-085
gas125,000590.0%DucaneCMPB125C547 3/8"H x 20 1/2"W x 29 1/2"D$1215.0092-055
gas125,000590.0%DucaneCMPE125U547 3/8"H x 20 1/2"W x 29 1/2"D$1215.0092-020
gas113,000592.1%AmStandAUX1D120A9601A40"H x 24.5"W x 28"D$1585.0091-071

gas furnace, upflow, two-stage, single speed

61 to 80 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas73,000¬48,0003.592.5%AmStandAUX2B080A9422A40"H x 17.5"W x 28"D$1679.0091-081

81 to 110 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas93,000¬60,000493.0%AmStandAUX2C100A9482A40"H x 21"W x 28"D$1795.0091-086

111 to 150 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas112,000¬66,600592.5%AmStandAUX2D120A9602A40"H x 24.5"W x 28"D$1950.0091-091

gas furnace, upflow, two-stage, variable speed

45 to 60 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas58,000¬37,700396.7%AmStandAUH2B060A9V3VA40"H x 17.5"W x 28"D$1890.0091-101

61 to 80 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas76,000¬49,500395.0%AmStandAUH2B080A9V3VA40"H x 17.5"W x 28"D$1970.0091-106

81 to 110 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas95,000¬61,800495.0%AmStandAUH2C100A9V4VA40"H x 21"W x 28"D$2190.0091-111

111 to 150 MBH

 fuelinput BTU/hairflow
ton/h
AFUEbrandpart#dimensionsprice item#  
gas114,700¬74,500595.0%AmStandAUH2D120A9V5VA40"H x 24.5"W x 28"D$2365.0091-116

High-efficiency (90%+ AFUE) condensing furnaces cannot be installed in an unheated space where the ambient temperature could drop below freezing (such as the attic or garage).

Because of the large number of models and sizes available, we do not stock all furnaces and boilers.
We can get most residential and commercial air handlers, furnaces, boilers, heaters, and heat pumps in three business days or less.