Coleman LX Series – Z9ET Review

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): $4,500 - $5,250

Top Features

• AFUE: 97%
• BTU input: 60,000 to 120,000
• BTU output: 58,000 to 116,000
• Burner: Two-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: 65%
• Warranty Score: 52%

The Bottom Line

The Coleman LX Series Z9ET is a high-efficiency furnace with a two-stage burner and a variable-speed ECM blower. Though not ENERGY STAR® certified, it boasts a 97% AFUE rating, ensuring substantial fuel savings. The unit’s dual-stage operation allows for better comfort control, while its warranty coverage provides peace of mind for homeowners.

In-Depth Review

Heating Efficiency

The Z9ET is designed to provide homeowners with reliable heating efficiency. With a 97% AFUE rating, this furnace ensures that nearly all the energy consumed is converted into heat, reducing energy waste and lowering utility bills. Key features that contribute to its efficiency include:

• Dual-stage burner, which adjusts the heat output based on the home’s needs, ensuring more precise temperature control.
• Variable-speed ECM blower, allowing for better airflow regulation and even heat distribution.
• Advanced heat exchanger design, improving heat transfer and overall system efficiency.

Comfort and Performance

This model features a two-stage burner and a variable-speed blower, both of which contribute to improved comfort. The dual-stage operation means the furnace runs at a lower capacity most of the time, maintaining a steady temperature and reducing temperature fluctuations. When extra heating power is needed, the furnace ramps up to its higher stage.

The variable-speed blower further enhances comfort by optimizing airflow and reducing noise levels. This results in quieter operation, improved indoor air quality, and enhanced humidity control.

Noise Reduction

Although not explicitly designed for ultra-quiet operation, the Z9ET benefits from:

• A variable-speed ECM blower that operates at lower speeds most of the time.
• A sealed cabinet design that minimizes sound transmission.

These features make it quieter than traditional single-stage furnaces but not as silent as modulating models.

Safety Features

Coleman incorporates several safety features into the Z9ET, including:

• Automatic shutoff in case of overheating.
• Sealed combustion system, reducing the risk of carbon monoxide leaks.
• Pressure switches that monitor the system’s operation to ensure safety.

Warranty Information

The Z9ET furnace comes with a strong warranty package:

• 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.

While the warranty is strong, it’s important to register the unit within the given period to take full advantage of the extended coverage.

Installation and Sizing

This furnace is designed for flexible installation, accommodating upflow, horizontal, and downflow configurations with minimal modifications. Its compact size makes it suitable for most residential spaces, including basements and utility rooms.

Final Verdict

The Coleman LX Series Z9ET is a solid choice for homeowners seeking high efficiency and comfort at a reasonable price. While it lacks ENERGY STAR® certification, its dual-stage operation, variable-speed blower, and strong warranty make it a competitive option in the market. If you’re looking for an energy-efficient and cost-effective furnace, the Z9ET is definitely worth considering.