Bryant 987MEvolution™ 98 Modulating Gas Furnace
98.5%
Modulating
Variable-Speed
Bryant's most efficient gas furnace delivers unmatched comfort with modulating heat and variable-speed airflow. Perfect for Portland's long, damp winters with precise temperature control.
How the Bryant 987M Solves Portland Heating Challenges
Engineered for the Pacific Northwest's unique climate - from long wet winters to drafty older homes
Portland's Long Wet Winters
Portland averages 154 rainy days per year, with temperatures hovering between 35-50°F for months. The 987M's modulating gas valve adjusts heat output in tiny 1.67% increments, providing consistent warmth without the temperature swings of single-stage furnaces.
Maintains perfect 70°F comfort even as outdoor temps fluctuate between freezing nights and 50°F afternoons.
Older Portland Craftsman Homes
Portland's beautiful 1920s-1940s Craftsman homes often have original ductwork and drafty areas. The 987M's variable-speed blower runs continuously at low speed, providing better air distribution and preventing cold spots.
Even heating throughout multi-story homes with challenging layouts and older insulation.
Rising NW Natural Gas Bills
With NW Natural rates increasing, 98.5% AFUE means only 1.5 cents of every dollar is wasted up the flue. An 80% furnace wastes 20 cents of every dollar - that adds up to $500-800/year in savings.
Save $600-900 annually compared to an 80% AFUE furnace on Portland's average 2,000 heating hours.
Portland Power Outages
Winter storms knock out power across Portland Metro. While the 987M needs electricity, its ultra-efficient operation means lower runtime and less fuel consumption - stretching your gas supply during emergencies.
Variable-speed operation uses 50% less electricity than standard PSC motors, reducing backup generator load.
Portland Furnace Services & Installation
Our NATE-certified technicians provide expert gas furnace installation for Portland area homes. Whether you need heating system repair or want to upgrade your furnace to a high-efficiency model, we deliver Factory Authorized service that maximizes performance and longevity.
Heating Services
Complete heating system solutions
New Furnace Installation
Professional gas furnace setup
Furnace Maintenance
Annual tune-ups and inspections
Emergency Repair
24/7 no-heat emergency service
Need help choosing the right furnace? Our Factory Authorized specialists assist with heating system replacement and can help with furnace troubleshooting.
Bryant 987M Key Features
Modulating Gas Valve
Adjusts heat output in 1.67% increments (60 settings) for precise temperature control and maximum efficiency.
Perfect Heat® Plus Technology
Advanced algorithm maintains ±1°F temperature consistency - no more hot and cold swings.
Variable-Speed ECM Blower
Electronically commutated motor provides whisper-quiet operation and 50% lower electrical consumption.
Two-Stage Heat Exchanger
Primary aluminized steel + secondary stainless steel extracts maximum heat from combustion gases.
Evolution Connex™ Compatible
Works with Bryant's smart thermostat for remote monitoring, scheduling, and energy tracking.
WhisperQuiet™ Design
Fully insulated cabinet with isolated blower assembly - as quiet as a refrigerator running.
Technical Specifications
| Model Number | 987M |
| Efficiency (AFUE) | 98.5% |
| Gas Valve Type | Modulating (60 settings) |
| Blower Motor | Variable-Speed ECM |
| Heating Capacity | 60,000 - 120,000 BTU/h |
| Fuel Type | Natural Gas / LP Convertible |
| Ignition | Hot Surface Ignition |
| Venting | PVC, ABS, or CPVC (2" or 3") |
| Heat Exchanger | Aluminized Steel Primary + Stainless Secondary |
| Cabinet | DuraGuard Plus™ protection |
Industry-Leading Warranty
Premium protection for premium equipment
- Lifetime Heat Exchanger - Both primary and secondary heat exchangers covered for life
- 10-Year Parts - All functional parts covered for 10 years
- Requires installation by Factory Authorized Dealer
- Product registration within 90 days required
Product Documentation
Official Bryant resources
Access the latest brochures, owner's manuals, installation guides, and warranty information directly from Bryant:
View Official DocumentsOpens Bryant.com - Always up-to-date documentation
Annual Savings vs. Lower Efficiency Furnaces
*Based on Portland average of 2,000 heating hours, $1.30/therm NW Natural gas. Actual savings vary.
Bryant 987M Installation Throughout Portland Metro
Factory Authorized installation, repair, and maintenance service
Central Portland
Downtown, Pearl District, NW, NE, SE Portland, Sellwood, St. Johns
West Side
Beaverton, Tigard, Lake Oswego, West Linn, Hillsboro, Tualatin
East Side
Gresham, Happy Valley, Milwaukie, Oregon City, Clackamas
What Portland Homeowners Say
See why customers trust us for Bryant furnace installation
Frequently Asked Questions About the Bryant 987M
What is Perfect Heat™ technology on the Bryant 987M?
Perfect Heat™ is the 987M's proprietary algorithm that automatically adjusts the modulating gas valve based on real-time conditions. Unlike fixed-stage furnaces, the 987M fires in 1% increments across its full capacity range, maintaining temperatures within ±1°F. This works alongside Perfect Humidity™ (enhanced dehumidification during cooling) and SmartEvap™ technology for year-round comfort optimization.
Does the 987M work with the TrueSense™ dirty filter detection?
Yes, the Bryant 987M includes TrueSense™ technology when paired with the Evolution™ Connex™ Control. TrueSense monitors airflow and alerts you when filters need replacement—before restricted airflow damages the system. The 987M also supports Fan On Plus™ with four continuous fan speed options, allowing you to circulate air without running heat.
What's the difference between the Bryant 987M and 986T furnaces?
Both are Evolution Series furnaces with 98%+ AFUE, but the 987M uses a variable-speed constant airflow ECM blower while the 986T uses a two-stage ECM. The 987M's modulating gas valve offers 60+ firing rates vs the 986T's two stages. For Portland's mild winters where low-fire operation dominates, the 987M provides quieter, more efficient performance. The 987M also supports Hybrid Heat® dual-fuel systems.
Ready to Install Your Bryant 987M?
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Energy Trust of Oregon rebates up to $1,000 + Federal Tax Credits available