| Square Footage | Furnace BTU |
|---|---|
| 1,000-1,200 sq. ft. Home | 40,000 - 60,000 BTU |
| 1,200-1,500 sq. ft. Home | 60,000 BTU |
| 1,500-1,800 sq. ft. Home | 60,000 - 80,000 BTU |
| 1,800-2,500 sq. ft. Home | 80,000 - 100,000 BTU |
| 2,500-3,500 sq. ft. Home | 100,000 to 120,000 BTU |
The Coleman TM8Y Review highlights a dependable 80% AFUE two-stage gas furnace designed for homeowners seeking improved comfort at an affordable price. Positioned in the LX Series lineup as a mid-efficiency model, the Coleman TM8Y combines two-stage heating with a variable-speed ECM blower to provide smoother temperature control than traditional single-stage furnaces.
| Feature | Details |
|---|---|
| AFUE Rating | 80% |
| Heating Type | Two-Stage |
| Blower Motor | Variable-Speed ECM |
| BTU Input | 60,000 – 120,000 |
| BTU Output | 48,000 – 96,000 |
| ENERGY STAR® | No |
| Installed Cost | $3,800 – $4,800 |
| Warranty | 10-Year Parts (Registered), Lifetime Heat Exchanger |
The average installed cost ranges from $3,800 to $4,800, depending on:
Home size
Ductwork requirements
Removal of existing furnace
Labor costs in your area
Installation complexity
Unit Price Estimate: $2,200 – $3,000
Installation Labor: $1,600 – $1,900
Compared to high-efficiency condensing furnaces, the Coleman TM8Y offers a lower upfront investment while still improving comfort over single-stage models.
With an 80% AFUE rating, the Coleman TM8Y converts 80% of fuel into usable heat.
Two-stage burner adjusts output based on heating demand
Variable-speed ECM blower improves airflow control
Lower-stage operation reduces temperature swings
Designed for mild climates where chimney venting is common
Although not a high-efficiency model, the two-stage design enhances comfort compared to basic single-stage furnaces.
The Coleman TM8Y is built for reliability and improved comfort within the mid-efficiency category.
Two-stage heating system
Variable-speed ECM motor
Durable heat exchanger construction
Compact cabinet design
Flexible installation compatibility
This setup allows the furnace to maintain steadier indoor temperatures without excessive cycling.
The Coleman TM8Y operates more quietly than traditional fixed-speed, single-stage furnaces.
Variable-speed blower reduces operational noise
Two-stage burner minimizes abrupt start-stop cycles
Sealed cabinet design reduces sound transmission
It provides smoother heating performance in comparison to entry-level 80% AFUE models.
Safety and serviceability are built into the Coleman TM8Y.
Automatic gas shutoff system
Pressure switches for airflow monitoring
Sealed combustion system
Overheat protection safeguards
Supports upflow and horizontal configurations
Compact design fits closets and basements
Accessible internal components for maintenance
These features ensure safe operation and easier long-term servicing.
| Feature | TM8Y | TM8E |
|---|---|---|
| AFUE | 80% | 80% |
| Heating | Two-Stage | Single-Stage |
| Blower | Variable-Speed ECM | Variable-Speed ECM |
| Comfort | Improved | Standard |
👉 TM8Y offers better comfort control thanks to two-stage heating.
| Feature | TM8Y | TM9Y |
|---|---|---|
| AFUE | 80% | 96% |
| Heating | Two-Stage | Two-Stage |
| ENERGY STAR® | No | Yes |
| Efficiency Level | Mid | High |
👉 TM9Y delivers significantly higher efficiency but at a higher price point.
Coleman backs the TM8Y with:
Base Warranty: 5-Year Parts, 20-Year Heat Exchanger
Registered Warranty: 10-Year Parts, Lifetime Heat Exchanger
5-Year Unit Replacement Warranty
Registration is required to access the extended warranty benefits.
This coverage is strong within the mid-efficiency furnace category.
✔ Two-stage heating improves comfort
✔ Variable-speed ECM blower
✔ Lower upfront cost
✔ Strong registered warranty coverage
✔ Flexible installation options
✖ 80% AFUE efficiency
✖ Not ENERGY STAR certified
✖ Less fuel savings compared to 95%+ furnaces
The Coleman TM8Y is ideal for:
Homeowners in mild climates
Budget-conscious buyers wanting two-stage comfort
Homes with existing chimney venting
Rental properties or investment homes
Those upgrading from older 80% single-stage furnaces
Yes — the Coleman TM8Y is worth it for homeowners who want improved comfort over a single-stage furnace without paying for high-efficiency condensing technology.
Its two-stage burner and ECM blower provide smoother temperature control and quieter operation while keeping upfront costs manageable.
If you live in a mild climate and want a reliable mid-efficiency furnace, the TM8Y is a solid option.
No. With 80% AFUE, it is classified as a mid-efficiency furnace.
Installation typically ranges from $3,800 to $4,800 depending on home size and labor conditions.
No. It does not meet ENERGY STAR efficiency requirements.
Yes. It features a two-stage burner combined with a variable-speed ECM blower.
With proper maintenance, it can last 15–20 years or more.
The Coleman TM8Y Review confirms that this model is a practical mid-efficiency furnace offering improved comfort compared to single-stage systems. While it does not deliver high AFUE savings, its two-stage heating and variable-speed blower enhance indoor comfort and reduce noise.
For homeowners in mild climates seeking affordable two-stage performance and strong warranty protection, the Coleman TM8Y is a dependable choice within the LX Series lineup.
Installation costs vary depending on:
Home square footage
Climate and province
Installation complexity
Contractor pricing structure
Hamilton • Burlington • Brantford • Cambridge • Kitchener • Milton • Oakville
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