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The Alpine AHFPBB100A5B has been discontinued
Goodman GMH95 2 w/o Energy Star
Goodman GMH950905CX

92,000 BTU Furnace, 95% Efficiency, 2-Stage Burner, 2,000 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

This is a Horizontal unit. Learn More

 The Alpine AHFPBB 80% AFUE single-stage, multi-speed, horizontal gas furnace is made by Ducane and features a dynamically balanced blower wheel, an insulated heavy-gauge steel cabinet, a hot surface ignition system, and an aluminized steel heat exchanger.  This furnace is suited for attic, closet, basement, crawl space, alcove, and garage applications.

Standard Features

  • Operates as a natural gas furnace out of the box, and can be easily converted to a propane furnace with optional propane conversion kit (see Accessories tab).
  • Direct replacement for nearly every competitive horizontal furnace
  • Single-stage gas valve
  • Crimp-Tite™ crimped aluminized steel heat exchanger for longer life and safe operation
  • Multi-speed PSC blower motor
  • Heavy gauge, insulated cabinet provides strength and quiet comfort
  • Integrated furnace control with LED diagnostics
  • Direct spark ignition system
  • Category I venting
  • 4" vent–vertical or horizontal with approved power venter
  • Inducer orientation allows for 360° vent connection
  • Electronic air cleaner connection (115 Volts)
  • Humidifier connection (24 Volts and 115 Volts)
  • 5 amp fuse for low voltage circuit protection
  • Time delay off for air conditioner SEER enhancement
  • Safety limits prevent overheating
  • CSA certified
  • 25-year limited warranty on heat exchanger
  • 5-year limited warranty on covered components


Configuration is the direction the conditioned air will pass through the unit.

Upflow units will have the air come in from the bottom and blow out the top.

Horizontal units will have the air go through the unit left to right, or right to left.

Downflow units will have the air come in from the top of the unit, and blow out the bottom.

Unsure of what configuration your home needs? Call us at 800-865-5931. Monday through Friday, 8:30am to 5:00pm CST

Blower Cooling Capacity

The tonnage of air conditioning that can be moved effectively by the blower. You want to make sure that the blower is appropriately sized for the air conditioner. If it is too small the coil could ice up. If it is too large than the air coming out of the ducts won't be cold enough.

Blower Cooling Capacity
3 / 3.5 / 4 / 5 Tons
Maximum Input BTU

The maximum amount of heat that the unit can produce. The amount delivered into the space will be the input minus the efficiency loss also know as the output. For example a 100000 btu furnace at 80% efficiency will give you 80000 out btus of heat. The same size furnace at 95% will give you 95000 btus of heat.

Maximum Input BTU
100,000 BTU
Maximum Heating Output BTU

The amount of heat, rated in British Thermal Units (BTUs), that the unit can deliver into the space. Not sure how many BTUs you need? Try our easy Equipment Sizing Estimator.

Maximum Heating Output BTU
81,000 BTU
Maximum CFM

The maximum amount of air that the blower can push. Rated in Cubic feet per minute or CFM.

Maximum CFM
2,105 @ 0.5
Efficiency (% AFUE)

The percentage of energy converted into output by the unit. The remaining percentage is lost during the conversion process. The higher the efficiency, the lower the operational cost.

Efficiency (% AFUE)
80 %
Blower Type

There are three main type of blowers: Multi-Speed, High-Efficiency Multi-Speed, and Variable Speed.

Standard Multi-Speed blowers have different speed options and you select the speed that the blower will operate at depending on the function it is performing (ex. different speeds for fan, AC, and heating functions).

High-Efficiency Multi-Speed blowers are designed to maintain a constant torque and in doing so will maintain air-flow and use less electricity.

Variable Speed blowers will adjust their speed during operation. The result is a blower that will run at lower speeds for longer periods of time (this improves the air flow and increases electrical efficiency).

Blower Type
Maximum Overcurrent Protection (Breaker)

The maximum capacity breaker in the building's circuit panel that can be used on the dedicated electrical line supplying the equipment.

Maximum Overcurrent Protection (Breaker)
20 Amps
Fuel Type
Liquid Propane Convertible / Natural Gas
Vent Connection

The diameter of the vent connection on the furnace.

Vent Connection
4 Inches
Supply Air Opening Size

The dimensions of the opening that the air is discharged through. This is the section where you would attach the supply plenum.

Supply Air Opening Size
15.125 x 21.375 Inches
Product Weight
141 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
Meets Canadian OEE Standards

Standards established by Canada's Office of Energy Efficiency.

Meets Canadian OEE Standards
California Approved

LoNox feature meets State of California emissions requirements.

California Approved
17 Inches
50 Inches
23 1/8 Inches
115 Volts
Heat Exchanger Warranty
25 Years
Parts Warranty
5 Years

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.