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Bryant Gas furnace 821T PREFERRED™ 80 VARIABLE-SPEED LOW NOX GAS FURNACE WITH INTELISENSE™ TECHNOLOGY

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 Bryant 821T PREFERRED™ 80 VARIABLE-SPEED LOW NOX GAS FURNACE WITH INTELISENSE™ TECHNOLOGY product image

Technical Specifications

Product Specs

  • AFUE Efficiency: 80%
  • Gas Valve Type: Two-Stage
  • Gas Efficiency: 80% AFUE
  • Heating stages: Two-stage operation for efficiency and comfort
  • Summer savings: Capable of improving SEER2 (energy efficiency) during cooling season with properly matched cooling system components
  • Hybrid Heat® system capable: Allows gas furnace/heat pump system combinations for enhanced heating efficiencies
  • SmartEvap™ technology: Provides additional summer duhumidification as a part of your air conditioning system
  • Blower Motor: Variable 25-speed, constant torque (VCT) ECM
  • Heat Exchanger: Aluminized steel
  • Secondary Heat Exchanger: Fin-and-tube stainless steel
  • Gas Valve: Two-stage
  • Igniter: PerfectLight™ hot surface igniter (pilot-free)
  • Fuel: Natural gas, convertible to liquid propane (LP)
  • Capacity: 45,000 - 135,000 BTUH
  • Profile: 4-way multipoise
  • Construction: Galvanized steel
  • Paint: Baked-on urethane base coat and polyester top coat
  • Brand: Bryant
  • Model or series: 821T PREFERRED™ 80 VARIABLE-SPEED LOW NOX GAS FURNACE WITH INTELISENSE™ TECHNOLOGY
  • Equipment type: Gas furnace
  • Product group: Residential HVAC
  • System role: Forced-air heating appliance for a ducted HVAC system
  • Application: Residential, light-commercial, or managed-property comfort applications
  • Compatibility check: Verify fuel type, venting, electrical requirements, capacity, controls, and installation clearances.
  • Verified source: bryant.com

Service planning

How GreenFlow handles 821T PREFERRED™ 80 VARIABLE-SPEED LOW NOX GAS FURNACE WITH INTELISENSE™ TECHNOLOGY requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

Brands We Service

Our Happy Customers

Howard H.

Great experience. Knowledgeable and very fair. Highly recommend

Valni D.

I’m delighted. Andrey the technician came on time and found the problem. They charged me fairly price.We thinking about hiring the company to maintain.

Murali S.

HVAC technician was punctual, followed up well, completed quick repairs, ensured the issue was resolved, and provided helpful recommendations.

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

Daniel M.

Responsive company, timely installation professionally done. Hannah is great!

Robert B.

I honestly can't believe my experience with Green Flow. I submitted a request for help through Thumbtack and Hannah called me literally a minute later to schedule an appointment. Thirty minutes after that, Andree was at my place doing A/C repair and furnace service. One hour after that,...

Anna G.

They quickly identified the issue with the heating system and fixed it efficiently. He explained everything clearly and made sure I understood what was going on. Very professional and reliable, extremely satisfied with the service.

Neal V.

In an industry that often fraught with contractors taking advantage of homeowners, Andrey was honest with his assessment and willing to install a product acquired elsewhere (most want that margin themselves), patiently answered my questions (I’m an engineer so like to understand what’s happening), and proactively offered practical...

Lesley S.

We were very happy with our experience with Green Flow Solution. After our hot water heater was leaking and needed to be replaced, they were able to install a new one the same day. They were professional and thorough. Thank you!

Drew

Diagnosed and replaced issue with furnace. Fast response and showed up right away to fix the issue at a competitive price

Yakov S.

I had an excellent experience with Green Flow, they were available to replace my dead central A/C unit on a short notice, and the price was thousands of dollars less than what I got quoted by two other companies. I would definitely use them again.

C S.

Responded late in evening, provided early first in the morning service for my HVAC heating going out. Showed up on time, gave heads up that on the way without prompting, came prepared and fixed the problem in less than one hour. Clear communication, professional, and very nice UI...