Bryant 820SPreferred™ 80 Single-Stage Gas Furnace with InteliSense™
80%
Single-Stage
Variable-Speed
Reliable single-stage furnace with InteliSense™ remote monitoring and non-condensing design for simpler installation. Perfect for Portland homes needing proven technology with variable-speed comfort.

How the Bryant 820S 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 820S delivers reliable warmth with 80% efficiency, while the variable-speed blower adjusts airflow for even temperatures throughout your home.
Consistent heating with excellent airflow control even during Portland's coldest winter days.
Older Portland Craftsman Homes
Portland's beautiful 1920s-1940s Craftsman homes often have original ductwork and drafty areas. The 820S's variable-speed blower adjusts airflow continuously, providing better air distribution and preventing cold spots.
Even heating throughout multi-story homes with challenging layouts and older insulation.
Replacement for 60-70% Furnaces
Many Portland homes still have 60-70% AFUE furnaces from the 1980s-1990s. Upgrading to the 820S's 80% AFUE can save $200-400/year on heating bills while providing better comfort with variable-speed airflow.
Reliable heating at better efficiency than older single-stage furnaces, with proven non-condensing technology.
No Condensate Drain Required
Non-condensing design means the 820S doesn't produce acidic condensate, simplifying installation in homes without existing condensate drains. This can save $500-1,000 in installation costs compared to high-efficiency condensing models.
Simpler installation with standard metal venting - ideal for direct replacements and retrofit applications.
Bryant 820S Key Features
Single-Stage Gas Valve
Reliable single-stage operation delivers consistent full-capacity heating when needed with proven technology.
InteliSense™ Remote Monitoring
Enables your HVAC contractor to remotely monitor system performance, diagnose issues, and schedule maintenance proactively.
Variable-Speed ECM Blower
Electronically commutated motor provides whisper-quiet operation and 50% lower electrical consumption than standard motors.
Non-Condensing Design
Standard metal venting eliminates need for PVC condensate drains - simpler installation and lower retrofit costs.
Bryant Connex™ Compatible
Works with Bryant's smart thermostat for remote access, scheduling, and energy tracking via smartphone.
Aluminized Steel Heat Exchanger
Durable construction with 20-year limited warranty - proven reliability for decades of service.
Technical Specifications
| Model Number | 820S |
| Efficiency (AFUE) | 80% |
| Gas Valve Type | Single-Stage |
| Blower Motor | Variable-Speed ECM |
| Heating Capacity | 40,000 - 120,000 BTU/h |
| Fuel Type | Natural Gas / LP Convertible |
| Ignition | Hot Surface Ignition |
| Venting | Category I - Standard Metal Vent |
| Heat Exchanger | Aluminized Steel |
| Cabinet | DuraGuard Plus™ protection |
Exceptional Warranty
Long-term protection for reliable equipment
- 20-Year Heat Exchanger - Aluminized steel heat exchanger covered for 20 years
- 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. Older Furnaces
*Based on Portland average of 2,000 heating hours, $1.30/therm NW Natural gas. Actual savings vary.
Bryant 820S 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 820S
What is InteliSense™ technology on the Bryant 820S?
InteliSense™ enables your HVAC contractor to remotely monitor the 820S's performance, diagnose issues, and schedule maintenance proactively. This technology provides real-time alerts for potential problems, allowing for preventive maintenance before breakdowns occur. Your contractor can access system data remotely, reducing service calls and improving system reliability throughout Portland's heating season.
How does the 820S compare to two-stage furnaces for Portland homes?
The 820S uses a single-stage gas valve paired with a variable-speed ECM blower. While two-stage models provide more gradual temperature control, the 820S's variable-speed blower still delivers even airflow and quiet operation at a lower price point. For Portland's mild winters where the furnace runs frequently but not continuously, the 820S offers excellent value with proven single-stage reliability, InteliSense™ monitoring, and simpler non-condensing installation.
What's the advantage of the 820S's non-condensing design for Portland installations?
The 820S uses standard metal venting (Category I) and doesn't produce acidic condensate, making installation simpler and less expensive than high-efficiency condensing models. This is ideal for direct replacements where existing metal chimneys are in good condition. You save $500-1,000 on installation costs while still getting variable-speed comfort and InteliSense™ monitoring. For Portland homes with existing metal venting, the 820S offers the best balance of simplicity, reliability, and value.
Ready to Install Your Bryant 820S?
Get a free in-home estimate for this reliable single-stage furnace
Energy Trust of Oregon rebates + Federal Tax Credits may be available