Goodman - 100,000 BTU 97% Variable Speed Modulating Gas Furnace - 21" Width - Upflow / Horizontal - 115V - R32 - GRVM971005CN

Goodman - 100,000 BTU 97% Variable Speed Modulating Gas Furnace - 21" Width - Upflow / Horizontal - 115V - R32 - GRVM971005CN

With a 97% efficiency rating, a variable-speed blower motor, and modulating gas valves, the GRVM971005CN is part of Goodman's top-tier furnace series. If you're looking to reduce your gas bill, the GRVM971005CN is an excellent choice, offering one of the best efficiency levels available on the market.

Features

• Ideal to heat a small to medium house (in an ideal climate)
• 100,000 BTU 97% AFUE modulating variable speed natural gas furnace
• Requires plastic/PVC flue venting
• Can be installed in the upflow or horizontal orientation
• Can be converted to propane with an LP conversion kit (sold separately)
• Innovative design for electrical efficiency, safety, and lower sound output
  

Specifications

Manual

• Installation Manual
• Specifications Sheet
  

What our Experts Think

• Outstanding Efficiency & Performance
  The Goodman GRVM971005CN 100,000 BTU Variable‑Speed Modulating Gas Furnace delivers 97 % AFUE, converting nearly all fuel into usable heat to lower energy costs and improve comfort compared with lower‑efficiency models.

• True Modulating Comfort Control
  A self‑calibrating modulating gas valve and variable‑speed ECM blower continuously adjust heat output and airflow to match demand, reducing temperature swings and providing quieter, more consistent warmth than traditional single‑stage furnaces.

• Smart, Integrated Diagnostics
  Built‑in self‑diagnostic controls, ComfortBridge™ communication compatibility, and optional Bluetooth commissioning/diagnostics simplify setup and service while optimizing system performance.

• Durable, Quiet Construction
  Features heavy‑duty aluminized primary and stainless‑steel secondary heat exchangers, a sealed insulated cabinet, and a variable‑speed induced‑draft blower for robust reliability and quieter operation in everyday use.

• Flexible Installation & Venting
  Designed for upflow or horizontal configuration with easy‑venting options (direct or non‑direct), convenient left/right gas and electrical service access, and low cabinet air leakage (≤ 2 %), aiding both retrofit and new installations.

• Modern Emissions & System Compatibility
  Includes Low NOx burner compliance and works with a range of thermostats (communicating or conventional), air cleaners, and humidifiers—making it a forward‑looking choice for modern HVAC systems.

Q&A

Q1: What type of furnace is this?
A: The Goodman GRVM971005CN is a high‑efficiency gas furnace with a modulating gas valve and variable‑speed ECM blower motor that adjusts output to match heating demand for consistent comfort and efficiency.

Q2: How much heating capacity and efficiency does it deliver?
A: This model delivers 100,000 BTU input (≈97,000 BTU output) at 97 % AFUE, meaning nearly all fuel energy is used for heat — reducing waste and lowering energy costs.

Q3: What installation orientations are supported?
A: It supports upflow and horizontal installations, ideal for basements, attics, closets, or crawlspaces with different duct layouts.

Q4: What advanced motor and control features does it include?
A: The furnace features a variable‑speed ECM blower for smooth airflow and quieter operation, plus ComfortBridge™ communicating controls with Bluetooth commissioning and diagnostics.

Q5: What construction and reliability features are included?
A: It includes heavy‑duty aluminized steel primary and stainless steel secondary heat exchangers, a silicon nitride igniter, self‑diagnostic control board with memory, and provisions for accessory air cleaners or humidifiers.

Q6: What fuel and venting requirements apply?
A: Runs on natural gas (convertible to propane with a kit) and requires plastic/PVC venting typical for high‑efficiency condensing furnaces.

Q7: What are the physical and electrical specs?
A: Approximate dimensions are 34.5″ H × 21″ W × 28.75″ D, weight ~144 lb, and it operates on 115 V single‑phase power with up to 2,000 CFM airflow.

Q8: What emissions and safety standards does it meet?
A: It complies with Low NOx emissions standards and is AHRI certified and ETL listed for performance and safety.

Maintenance Tips

• Replace Air Filters Every 1–3 Months – Keep the airflow strong and protect the blower and heat exchanger. Dirty filters reduce efficiency and increase system strain.

• Annual Professional Inspection – Have a certified HVAC technician check burners, heat exchanger, PVC venting, modulation controls, gas pressure, and safety systems each season to maintain 97% AFUE efficiency and safe operation.

• Clean Surrounding Area – Vacuum dust near the furnace and around intake/exhaust areas; keep the furnace area free of clutter to support airflow and reduce fire risk.

• Test Thermostat & Controls – Verify thermostat accuracy, test modulation response, and replace batteries yearly if applicable to ensure smooth comfort control.

• Inspect Electrical Connections – Have the technician tighten connections, check variable‑speed motor components, and inspect the control board for corrosion or wear.

• Check PVC Intake/Exhaust & Condensate – Ensure PVC vent pipes and any condensate drains are clear of obstructions (e.g., ice, nests, debris) that can affect combustion and drainage.

• Document All Maintenance – Track filter changes and professional service visits to support warranty coverage and streamline troubleshooting.