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| 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 |
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Your complete buying guide for KeepRite gas furnaces—compare top models, AFUE efficiency ratings, standout features, price ranges, warranty coverage, and more. Get a free quote quickly and easily!
Modern furnaces are more advanced and efficient than ever before, offering homeowners more choices and features than in the past.
If you’re considering a new KeepRite furnace, navigating the many available models and features can feel overwhelming.
The good news? Choosing the right furnace doesn’t have to be complicated. This in-depth KeepRite brand review is designed to simplify your decision and help you select the best model for your home’s size, budget, and comfort needs.
We'll walk you through everything you need to know, including:
And any unique technologies that set KeepRite apart
A breakdown of KeepRite’s gas furnace lineup
AFUE energy efficiency ratings and what they mean for your bills
Design and performance features
Warranty coverage details
Also Read: The Best Furnaces for Canadians
KeepRite offers a range of furnaces to suit nearly every home and budget. Whether you’re looking for a budget-friendly entry-level unit with basic single-stage operation, a high-efficiency model with advanced features and modulating gas valves, or a dependable two-stage option that falls somewhere in between, there’s likely a KeepRite furnace that fits your needs.
Most models come with strong warranty coverage, and all feature thoughtful design elements that enhance energy efficiency, reduce noise, and promote long-term performance.
While KeepRite may not offer the same proprietary features or cutting-edge technologies as some premium brands, they still deliver reliable, affordable heating solutions with solid engineering and practical performance benefits.
The following grades are determined using a proprietary scoring system that evaluates multiple factors—such as energy efficiency, performance, warranty coverage, and available features—to make cross-brand comparisons easier.
Keep in mind: A lower grade doesn’t mean a furnace is a poor choice. Many lower-cost models have simpler features, shorter warranties, or standard efficiency ratings, which can affect the overall score when compared to premium models.
Model | ENERGY STAR® Certified | AFUE Efficiency | Overall Grade | Warranty Grade |
|---|---|---|---|---|
| Ion™ 98 – G97CMN | Yes | 98% | A+ | A |
| Ion™ 80 – G80CTL | No | 80% | B | A |
| Ion™ 96 – G96CTN | Yes | 96.7% | A+ | A |
| Ion™ 80 – G80CSU | No | 80% | B- | A |
| Ion™ 95 – G95CSU | Yes | 95% | A- | A |
| QuietComfort® 96 – G96VTN | Yes | 96% | A | A |
| QuietComfort® 80 – G80VTL | No | 80% | B | A |
| Performance 96 – N96VSN | Yes | 97% | A- | A- |
| Performance 96 – N96MSN | Yes | 97% | A- | A- |
| Performance 92 – N92MSN | Yes | 92.1% | A- | A- |
| Performance 92 – N95ESU | No | 95% | B | A- |
| Performance 80 – N80MSN | No | 80% | B- | A- |
| Performance 80 – N80MSL | No | 80% | B- | A- |
| Performance 80 – N80ESU | No | 80% | B- | A- |
| Performance 80 – N80VSL | No | 80% | B- | A- |
Average price range: $3,800 – $4,800
Performance 92 - N92MSN
This is KeepRite’s most basic and budget-friendly furnace. It’s a single-stage, multi-speed unit with a 92.1% AFUE. It performs best in mild climates and may not meet high-efficiency standards in colder regions like Canada.
Performance 95 - N95ESU
A single-stage, multi-speed unit with a 95% AFUE, this model features ultra-low NOx emissions. It uses a special premixing process to reduce pollutants, increase efficiency, and burn fuel cleaner.
Performance 96 - N96MSN
With a 97% AFUE, this single-stage, multi-speed furnace is dual fuel compatible—able to switch between gas and electric heating using a heat pump for maximum energy efficiency.
Performance 96 - N96VSN
This single-stage, variable-speed furnace also boasts a 97% AFUE. It features KeepRite’s rigid press joint heat exchanger, which enhances heat transfer and durability, and resists cracking over time.
These entry-level models are excellent for homeowners with smaller homes or tighter budgets. Although all models are single-stage, they still offer impressive efficiency and solid features—ideal for mild climates or smaller spaces.
Average price range: $4,300 – $5,300
QuietComfort® 96 - G96VTN
A two-stage, variable-speed furnace with a 96.7% AFUE. It features a variable-speed ECM blower motor, delivering consistent airflow, quieter operation, and better humidity control. It’s built for improved year-round comfort and energy savings.
This model is well-suited for colder climates and larger homes due to its two-stage operation. It provides a good balance of efficiency, performance, and warranty coverage—ideal for homeowners wanting more advanced functionality without stepping into the premium tier.
Average price range: $4,800 – $5,800
Ion™ 95 - G95CSU
This ultra-low NOx furnace has a 95% AFUE and features single-stage, variable-speed performance. While similar to entry-level models in specs, it’s part of the Ion series, meaning it offers better warranty coverage and compatibility with the Ion smart thermostat.
Ion™ 96 - G96CTN
A two-stage, variable-speed furnace with a 96.7% AFUE. It shares much in common with the mid-range QuietComfort model but offers enhanced warranty terms and compatibility with the Ion System Control, allowing for more precise comfort management.
Ion™ 98 - G97CMN
KeepRite’s only modulating, variable-speed furnace with an outstanding 98% AFUE. It can make ultra-fine adjustments to the heat output for maximum comfort, efficiency, and quiet operation—perfect for large homes or harsh winters.
KeepRite’s premium models offer a wide range of performance options—from budget-friendly single-stage to ultra-efficient modulating units. They’re ideal for everything from mild to severe climates and offer compatibility with smart thermostats and excellent warranties at affordable price points.
How KeepRite describes it:
A smart, communicating control system designed for easy management of home comfort. It offers a full-colour touchscreen display, voice control, and remote access via the Ion Home mobile app.
What it means in simple terms:
The Ion System Control is KeepRite’s proprietary Wi-Fi-enabled smart thermostat. It lets you manage your home's temperature, humidity, fan settings, and ventilation from anywhere in the world using your smartphone or tablet.
It comes with a user-friendly touchscreen that gives you real-time stats on energy use, local weather updates, and maintenance alerts. The thermostat also supports multi-zone temperature control (up to eight zones) and dual fuel system integration. You can program comfort settings for up to seven days, including modes like "home," "away," and "sleep."
Is it just marketing hype?
Not at all. Smart thermostats like the Ion System Control can help reduce energy use and heating costs by allowing personalized scheduling and remote control. The added benefits of zoning, energy tracking, and dual-fuel management offer practical and noticeable comfort improvements.
That said, this isn’t a completely unique feature. Many other HVAC brands—including Carrier, Lennox, Trane, York, and others—offer their own proprietary smart thermostats. Furthermore, since KeepRite shares a parent company with Heil, Tempstar, and Comfortmaker, the Ion System Control is also available through those brands.
How KeepRite describes it:
All KeepRite furnaces include an RPJ primary heat exchanger, although the brand doesn’t elaborate on what that means.
What it means in simple terms:
The RPJ heat exchanger is a special clamshell-style component that uses a pressed joint design instead of traditional welds to seal the joints. Since welds are prone to failure—especially in high-stress, high-temperature environments—eliminating them can significantly increase durability and reduce the risk of cracking.
Is it just marketing hype?
No. RPJ or clamshell heat exchangers are generally more robust and have a longer lifespan than standard welded models. The absence of welds helps avoid issues related to weak or improperly done welding, especially in a high-heat component like a furnace’s heat exchanger.
KeepRite isn’t the only brand using this approach. Sister brands such as Heil, Comfortmaker, and Tempstar also feature RPJ heat exchangers. Competitors like Lennox use similar technology in their Duralok design, while Armstrong uses a crimped design called EHX that also avoids welds.
So while the RPJ isn’t exclusive to KeepRite, the industry-wide use of similar designs supports its value as a genuinely beneficial feature.
KeepRite furnaces come with different levels of warranty coverage depending on the model and series. Their mid-range and premium-tier models offer the most comprehensive protection.
Here’s a breakdown of the standard warranty coverage by model:
| Series/Model | Heat Exchanger Warranty | Parts Warranty | No Hassle Replacement Warranty |
|---|---|---|---|
| Ion 95 G95CSU & QuietComfort 96 G96VTN | Lifetime | 10 years | 5 years |
| Ion 98 G97CMN & Ion 96 G96CTN | Lifetime | 10 years | 10 years |
| Performance 95 N95ESU | 20 years | 10 years | N/A |
| Performance 96 N96VSN, 92 N92MSN, & 96 N96MSN | Lifetime | 10 years | N/A |
The No Hassle Replacement Warranty is KeepRite’s version of a unit replacement warranty. If the primary heat exchanger fails within the coverage period, KeepRite will replace the entire furnace with a comparable model, rather than just repairing or replacing the part.
To receive the full warranty benefits listed above, you must register your new KeepRite furnace within 90 days of installation.
If the furnace isn’t registered on time:
Fortunately, the registration process is quick and easy:
Like most HVAC manufacturers, KeepRite has a few conditions to keep your warranty valid:
It’s always a good idea to read KeepRite’s full warranty terms and conditions to ensure you remain eligible for coverage.
KeepRite offers one of the best warranties in the industry—especially considering that they are an economy brand.
Many premium brands like Lennox and Carrier, despite their higher price tags, don’t offer unit replacement warranties at all. In contrast, KeepRite provides up to 10 years of No Hassle Replacement coverage on some models.
Other economy brands that also offer strong warranties include:
However, not all KeepRite models are equal. A few entry-level furnaces only come with a 20-year heat exchanger warranty, which is the most basic protection offered by any manufacturer.
Be a happy homeowner with a reliable and affordable KeepRite furnace.
Fill out our online form today to get a free, no-obligation quote on installation and pricing.
KeepRite offers the OptiClean™ air scrubber, a portable unit ideal for commercial spaces like hospitals, schools, and offices. Its HEPA filter removes 99.97% of particles sized 0.3 microns and larger. While highly effective in large settings, it’s generally too robust for most homes, so KeepRite recommends other IAQ products for residential use.
For residential air quality concerns, KeepRite’s integrated air purifiers are a better fit. Installed inline with your furnace, they clean every breath of air circulating through your HVAC system. They’re ideal for:
How it works:
The purifier uses ionic charge to capture contaminants like dust, pollen, and pathogens on a MERV 15 filter. It kills 99% of viruses (including cold, flu, coronavirus) and 95% of particles in the 1–3 micron range.
KeepRite’s geothermal heat pumps tap into stable underground temperatures to heat and cool homes efficiently with minimal fossil fuel use—ideal for eco-conscious households. Options include:
These geothermal systems pair seamlessly with KeepRite’s dual-fuel-compatible furnaces to maximize efficiency and lower energy costs.
In addition to the Ion System Control, KeepRite offers two programmable models:
For zoned temperature control, KeepRite’s Ion Zoning System integrates with the Ion thermostat and furnace, enabling up to eight independent climate zones. A wireless smart sensor helps monitor and manage temperature in each zone for personalized comfort.
KeepRite has been serving homeowners for over 50 years and is now part of International Comfort Products (ICP). ICP also owns brands like Heil, Tempstar, and Comfortmaker, which are under the larger umbrella of United Technologies Corp., home to HVAC icons such as Carrier, Payne, and Bryant. KeepRite focuses on delivering affordable, high-efficiency gas and oil furnaces backed by solid warranties and customer support.
Yes—despite offering competitive, economy-tier pricing, KeepRite furnaces use quality components and stand behind their products with a strong warranty program.
With regular maintenance, most KeepRite units last at least 15 years. Their 20-year (or lifetime) heat exchanger warranty and parts coverage signal long-term reliability.
KeepRite is owned by International Comfort Products, part of United Technologies Corp., which also includes brands like Carrier, Lennox, Payne, Bryant, Heil, Tempstar, and Comfortmaker.
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