| 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 |
Please note that this model has been discontinued by the manufacturer. However, it may still be available through select distributors and contractors for a limited time.
The KeepRite Performance Series N9MSE is an affordable, high-efficiency gas furnace built for homeowners seeking reliable comfort and energy savings without the premium price tag. Designed with single-stage operation and a fixed-speed blower, it provides consistent performance and long-term durability backed by KeepRite’s strong warranty coverage.
Average Installed Price: $2,800 – $4,000
AFUE Efficiency: 95%
ENERGY STAR® Certified: No
Sound-reducing design for quieter operation
Induced draft combustion motor for cleaner performance
RPJ (Rigid Press Joint) primary heat exchanger for improved heat transfer
The N9MSE delivers solid efficiency and dependable performance at a competitive price point. With a 95% AFUE rating, it’s a great choice for homeowners who want to save on heating costs without paying extra for the advanced controls or modulating features found in higher-end models.
Sub-models Available: 0401410A, 0601410A, 0601714A, 0801716A, 0802120A, 1002114A, 1002120A, 1202420A, 1402420A
AFUE: 95%
BTU Input: 40,000 – 140,000
BTU Output: 39,000 – 135,000
ENERGY STAR® Qualified: No
The induced draft motor enhances safety and efficiency by using a blower to pull air into the combustion chamber and vent residual gases from previous cycles. This process ensures cleaner ignition and more consistent combustion with every furnace start-up.
The N9MSE operates quietly thanks to soft-mounted blower and inducer motors that minimize vibrations and reduce operational noise levels—perfect for maintaining a peaceful home environment.
Constructed from corrosion-resistant stainless steel, the RPJ heat exchanger is engineered to transfer more heat to the exterior surface, improving overall heating efficiency. Its durable build also ensures a longer service life.
Single-Stage Gas Valve: Simple and reliable performance for consistent home heating.
Direct Spark Ignition: Ensures reliable burner ignition in all conditions.
Dual-Fuel Compatibility: Can pair with a compatible heat pump and thermostat for greater energy flexibility.
The KeepRite Performance Series N9MSE is backed by strong warranty protection:
20-Year Heat Exchanger Limited Warranty
10-Year Parts Limited Warranty (Registration required within 90 days of purchase)
Note: If you fail to register the unit within 90 days, the parts warranty is reduced to 5 years.
N9MSE vs. Performance Series N9MSB
Both models are part of the Performance Series, but the N9MSE offers a superior 95% AFUE, compared to the N9MSB’s 92.1%. While the N9MSB is slightly cheaper upfront, the N9MSE’s higher efficiency translates into long-term savings and better value over time.
N9MSE vs. ProComfort Deluxe Series G9MVE
The G9MVE is a step up, featuring a two-stage gas valve and variable-speed blower for more precise temperature control and quieter operation. It also includes the Observer Communicating Wall Control with Wi-Fi capability. While both models have similar efficiency ratings (95–96%), the G9MVE offers more advanced comfort and technology features.
N9MSE vs. ProComfort Deluxe Series G9MAE
At the top of the KeepRite lineup, the G9MAE offers a modulating gas valve, Rigid Press Joint heat exchangers, and a 97–98% AFUE rating. It also includes the advanced ION System Control, which manages temperature, humidity, ventilation, and indoor air quality. The G9MAE costs more upfront, but it delivers unmatched comfort, efficiency, and connectivity.
