Bryant 800SLegacy™ Multi 18-Speed 80% Gas Furnace
80%
Single-Stage
18-Speed
Flexible airflow for Portland homes. The 800S combines reliable 80% efficiency with an 18-speed blower that can be precisely adjusted for optimal comfort in any home layout.
How the Bryant 800S Solves Portland Heating Challenges
Flexible airflow customization for Pacific Northwest homes
Customizable Comfort for Portland
Portland's weather varies from 30°F winter nights to 50°F afternoons. The 800S's 18-speed blower can be precisely adjusted by your installer to match your home's specific airflow needs, providing better comfort than standard fixed-speed furnaces.
Optimized airflow settings eliminate hot/cold spots and reduce temperature swings in your home.
Flexible for Complex Duct Systems
Portland homes with additions, remodels, or challenging floor plans often have ductwork that needs specific airflow balancing. The 800S's 18 speed settings allow technicians to fine-tune airflow for optimal distribution.
Better heating performance in homes with long duct runs or multiple levels.
Budget-Friendly Entry Point
Need to replace an old furnace but don't want to pay for 95%+ efficiency? The 800S provides reliable 80% AFUE heating with the benefit of flexible airflow at an affordable price point.
Save $2,000-3,500 on equipment costs compared to high-efficiency condensing models.
Simple Metal Venting
The 800S is a non-condensing furnace using traditional B-vent metal flue. No need for expensive PVC piping modifications or condensate drain installations - works with existing chimney venting.
Lower installation costs with standard venting - reuse your existing metal flue system.
Bryant 800S Key Features
18-Speed Multi-Speed Blower
Flexible airflow adjustment with 18 discrete speed settings allows precise matching to your home's duct system.
80% AFUE Efficiency
Non-condensing design provides solid efficiency without the complexity of condensing technology.
Single-Stage Gas Valve
Simple, reliable on/off operation with proven durability and easy serviceability.
Standard Metal Venting
Uses traditional B-vent metal flue - compatible with existing chimney venting.
Aluminized Steel Heat Exchanger
Durable heat exchanger backed by 20-year warranty for long-term reliability.
Standard Thermostat Compatible
Works with any 24V thermostat - no smart controls required.
Technical Specifications
| Model Number | 800S |
| Efficiency (AFUE) | 80% |
| Gas Valve Type | Single-Stage |
| Blower Motor | 18-Speed Multi-Speed PSC |
| Heating Capacity | 40,000 - 120,000 BTU/h |
| Fuel Type | Natural Gas / LP Convertible |
| Ignition | Hot Surface Ignition |
| Venting | Category I Metal B-Vent |
| Heat Exchanger | Aluminized Steel |
| Cabinet | Powder-Coated Steel |
Industry-Leading Warranty
Premium protection for premium 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 800S 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 800S
What does '18-speed blower' mean on the Bryant 800S?
The 800S features an 18-speed multi-speed PSC blower motor with 18 discrete airflow settings. Your installer can select from these 18 speeds to precisely match your home's ductwork requirements. This is different from a variable-speed ECM motor (which continuously varies speed) - the 800S has 18 fixed speeds to choose from. Once set during installation, the blower runs at the selected speed whenever the furnace operates. This flexibility allows better airflow optimization than standard 3-4 speed furnaces, especially in homes with complex duct layouts.
How does the 800S's 18-speed blower compare to variable-speed ECM motors?
Variable-speed ECM motors (like those in Bryant Preferred and Evolution series) can adjust continuously across their entire speed range and use 50% less electricity. The 800S's 18-speed PSC motor offers 18 fixed speeds selected at installation. PSC motors are simpler technology, cost less to repair, and provide adequate airflow flexibility for most Portland homes. For maximum comfort and efficiency, ECM motors are superior. For budget-conscious upgrades where good (not maximum) airflow control is needed, the 800S's 18 speeds offer a middle ground.
Is the Bryant 800S a good replacement for an old furnace in a Portland home?
Yes, the 800S is an excellent replacement option if you're upgrading from an old 60-70% AFUE furnace and want better airflow control without high-efficiency pricing. The 80% AFUE provides a 15-30% efficiency improvement over older models. The 18-speed blower allows your installer to optimize airflow for your specific home layout. As a non-condensing furnace, the 800S uses standard B-vent metal flue (compatible with existing chimneys), reducing installation complexity. It's ideal for Portland's mild winters where maximum 97% AFUE efficiency isn't required.
Ready to Install Your Bryant 800S?
Get a free in-home estimate for flexible 18-speed heating comfort
Energy Trust of Oregon rebates available + Federal Tax Credits