Reliable Warmth. Efficient Comfort. Trusted MRCOOL Performance.
Keep your home cozy during the coldest months with the MRCOOL 80% AFUE 3 Ton Gas Furnace (Model: MGM80SE045A3A). Designed for upflow or horizontal installation, this single-stage gas furnace offers consistent heating with an energy-efficient 80% AFUE rating—meaning 80 cents of every dollar spent on fuel is converted into heat.
Ideal for homeowners looking for reliable performance and easy maintenance, this furnace features a multi-speed ECM blower motor, a slide-out blower assembly, and rotatable draft inducer for flexible venting.
⚠️ Note: Not available for sale or installation in California due to state energy regulations.
🔧 Key Features:
-
80% AFUE Efficiency
Converts 80% of fuel into heat to maximize comfort and energy savings.
-
3 Ton / 45,000 BTU Heating Capacity
Ideal for medium to larger homes or zones needing dependable, even heat distribution.
-
Upflow/Horizontal Installation
Versatile configuration with removable floor base for bottom return applications.
-
Quiet, Consistent Comfort
High-efficiency 5-speed ECM blower motor ensures even airflow and whisper-quiet operation.
-
Durable Internal Components
Includes aluminized steel inshot burners and a non-welded clamshell heat exchanger for long-lasting performance.
-
Maintenance-Friendly Design
Easy-access slide-out blower simplifies cleaning and servicing.
-
Flexible Connections
Left or right utility hookups plus rotatable draft inducer for adaptable venting.
-
Certified for Safety and Efficiency
AHRI and CSA certified, ensuring dependable operation that meets national standards.
-
Warranty Protection
Comes with a 10-year parts warranty when registered and installed by a licensed professional.
🧰 Technical Specifications:
-
Model: MGM80SE045A3A
-
AFUE Rating: 80%
-
BTU Input: 44,000 | BTU Output: 35,200
-
CFM: 1230
-
Tonnage: 3 Ton
-
Blower Motor Type: ECM, 5-Speed
-
Electrical: 120V, 60Hz, Single Phase, 15A Max
-
Gas Type: Natural Gas (LP kit available)
-
Ignition: Silicon Nitride Ignitor
-
Heat Exchanger: Tapered, Non-Welded Clamshell – Aluminized Steel
-
Vent Connector: 4"
-
Dimensions: 14.5"W x 28.375"D x 33"H
-
Weight: 111 lbs
-
Restricted States: Not for sale in California
PRODUCT SPECIFICATIONS:
Product Dimensions |
14 1/2'W x 28 3/8'D x 33'H |
Product Weight |
111 lbs |
Unit Type |
Gas Furnace
|
AFUE |
80%
|
CFM |
1230
|
Tonnage |
3 |
Heating Capacity |
44,000 BTU |
Fuel Type |
Natural Gas |
BTU Input |
44,000
|
BTU Output |
35,200
|
Voltage |
Requires a minimum of 120V/60HZ/15A
|
Phase |
1 |
Cycle |
60 |
Stage |
Single |
Max Fuse Breaker |
15
|
Min Circuit Ampacity |
6.8
|
Color |
Gray |
Full Load |
6.8
|
Number of Burners |
4
|
Gas Connection Size |
0.5
|
Blower Motor Type |
ECM |
Blower Motor HP
|
1/2
|
Blower Motor Speeds |
5 Speed |
Blower Motor RPM |
535-1230
|
Heat Exchanger Type |
Aluminized steel
|
Ignition Type |
Silicon Nitride Ignitor |
Vent Connector |
4 inch |
LP Kit Available |
Yes
|
Certifications |
CSA AHRI |
Warranty |
Registered 10 Year Parts Warranty
|
Restricted States |
Yes (California) |