

Coleman LX Series – TM8E Review
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AFUE:Up to 80%
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Burner Type:Single-Stage
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Blower Type:5-speed blower motor
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Warranty Score:
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Overall Grade:
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Price:$4,750 - $5,500
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BTU Output:58,000 - 116,000
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Warranty Grade: It can be difficult to know which brands and models offer the best warranty coverage, particularly because a lot of the key details are hidden in dense warranty documents filled with hard to understand legalese. Thankfully for you, we’ve carefully studied them and created this grading system to account for things like the length AND quality of their guarantee, coverage restrictions and more!
Overall Grade: This grade weighs key factors like efficiency, ENERGY STAR certification, comfort, noise level (for A/Cs), our warranty grade, and more.
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Limited inventory: Please note, this model has been marked as having limited inventory by the manufacturer, although it may still be available for purchase through distributors and contractors for some time.
Coleman Brand Overall Rating & Average Price
In a Nutshell
Average Price (installed): $3,500 - $4,500
Top Features
- AFUE: 80%
- BTU input: 60,000 to 120,000
- BTU output: 48,000 to 96,000
- Burner: Single-stage
- Blower: Variable-speed ECM
- Base Warranty: 5 years (Parts), 20 years (Heat Exchanger)
- Registered Warranty: 10 years (Parts), Lifetime (Heat Exchanger)
- ENERGY STAR® Certified: No
- Overall Score: 32%
- Warranty Score: 52%
The Bottom Line
The Coleman LX Series TM8E is an economical, mid-efficiency furnace with an 80% AFUE rating. It features a single-stage burner and a variable-speed ECM blower, making it a cost-effective option for homeowners in milder climates. While it doesn’t have ENERGY STAR® certification, it provides reliable performance and comes with strong warranty coverage for added peace of mind.
In-Depth Review
Heating Efficiency
The TM8E’s 80% AFUE rating means that 80% of the fuel consumed is converted into heat, while 20% is lost through exhaust. Though not as efficient as higher AFUE models, this furnace is a budget-friendly option for regions with mild winters. Key efficiency features include:
- Single-stage burner, providing steady heat output for consistent comfort.
- Variable-speed ECM blower, helping to improve airflow efficiency and overall comfort.
Comfort and Performance
This furnace is ideal for homeowners looking for a simple, reliable heating solution. While the single-stage burner means the furnace operates at full capacity whenever it's on, the variable-speed blower enhances airflow and comfort, preventing sudden temperature fluctuations.
Noise Reduction
- Variable-speed ECM blower allows for quieter operation compared to traditional fixed-speed models.
- Sealed cabinet design helps minimize operational noise.
Safety Features
Coleman incorporates essential safety features into the TM8E, including:
- Automatic gas shutoff, reducing the risk of leaks.
- Pressure switches, ensuring proper airflow and system performance.
- Sealed combustion system, helping to improve indoor air quality.
Warranty Information
The TM8E offers a comprehensive warranty that provides solid coverage:
- Base Warranty: 5 years on parts, 20 years on the heat exchanger.
- Registered Warranty: 10 years on parts, lifetime coverage on the heat exchanger.
- Unit Replacement Warranty: 5 years.
Installation and Sizing
This model supports upflow and horizontal installation, making it a flexible option for different home layouts. Its compact design allows for easy installation in tight spaces, such as closets or basements.
Final Verdict
The Coleman LX Series TM8E is a cost-effective furnace designed for homeowners in regions with mild winters. While it lacks the efficiency of higher AFUE models, it offers reliable heating, quiet operation, and a strong warranty package. If you're looking for a budget-friendly furnace with dependable performance, the TM8E is a great option.