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Comfort-Aire GUH80A090B4XE

90,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,600 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

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  • Liftgate Delivery $25
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This is a Horizontal / Upflow unit. Learn More

At just 34½” high, our 80% furnace cabinet is ideally suited to both new construction and replacements—models can fit into the space of virtually any furnace being replaced, including attics, crawl spaces and utility closets. That also leaves plenty of room for add-ons such as an electronic air cleaner.

This non-condensing furnace comes completely assembled, ready for installation with a color-coded wiring harness and quick connect fittings. The integrated solid state control board speeds installation and is ready to accept comfort options such as an electronic air cleaner and a humidifier.

Features:

  • 100% fired and tested: All units and each component are tested on the manufacturing line.
  • Best packaging in the industry: Unique corner post design assures product will arrive to the homeowner dent free.
  • Low Boy Height: Easy to apply in low ceiling applications, works well with taller high SEER coils, easier to handle and install.
  • Hot surface igniter: Innovative application of a silicon nitride igniter. Utilizes proven Smartlite® technology.
  • Color coded wire harness: Designed to fit the components, all with quick-connect fittings for ease of service and replacement.
  • High static blowers: All models equipped with high static blowers.
  • Multi-speed direct drive blower: Designed to give a wide range of cooling capacities. Switches on PCB, provide ultra easy motor speed selection.
  • Blower Compartment: Insulated for ultra quiet operation.

 

Configuration

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

Configuration
Horizontal / Upflow
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
2 / 2.5 / 3 / 4 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
90,000 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
72,000 BTU
Maximum CFM

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

Maximum CFM
1,510 @ 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
Multi-Speed
Burner Stages

A single stage furnace has one heat setting. The furnace is either on at full capacity or it is off.

A two stage furnace has two different heat settings; one full capacity and a second lower heat setting. The advantage of a two stage furnace is that it extends the run time which does a better job distributing the air in your home. This helps improve your homes comfort level while reducing drafty areas.

A modulating furnace will heat on a low capacity until a call for high heat is sent to the furnace. Once a high heat call is initiated the furnace will slowly increase the burner level and blower speed over time, until reaching full capacity. The advantages are potentially reduced noise and better efficiency in some models. A modulating furnace should provide the best comfort level.

Burner Stages
Single
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)
15 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
19 3/8 x 19 Inches
Product Weight
115 lbs
Shipping Weight
115 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
Yes
Meets Canadian OEE Standards

Standards established by Canada's Office of Energy Efficiency.

Meets Canadian OEE Standards
No
California Approved

LoNox feature meets State of California emissions requirements.

California Approved
Yes
Width
17 1/2 Inches
Depth
28 Inches
Height
34 1/2 Inches
Voltage
115 Volts
Frequency
60 Hz
Voltage Phase
1
Heat Exchanger Warranty
20 Years
Parts Warranty
12 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.