Answering the buying question for homeowners seeking dependable propane heating, this guide highlights five top furnaces that balance efficiency, installation flexibility, and cost savings. These models are best for mid- to large-sized spaces, homes requiring upflow or horizontal installation, and buyers prioritizing airflow control and consistent heat. The table below compares key traits to help quick decisions.
| Product | BTU | AFUE | Installation Type | Key Benefit |
|---|---|---|---|---|
| Goodman GR9S800804BN | 80,000 | 80% | Upflow/Horizontal | Multi-speed ECM for quiet, steady airflow |
| ACiQ 60,000 BTU | 60,000 | 80% | Upflow/Horizontal | Economical efficiency with solid heat output |
| ACiQ 100,000 BTU | 100,000 | 92% | Upflow/Horizontal | High efficiency with strong capacity |
| ACiQ 60,000 BTU 96% | 60,000 | 96% | Upflow/Horizontal | Best for lower energy use, California/Colorado compliant |
| Mr. Heater 80,000 BTU | 80,000 | N/A | Garage/Workshop unit | Designed for spaces like garages and barns |
Goodman 80,000 BTU 80% Efficiency Furnace (GR9S800804BN)
Best for: Homeowners needing a reliable single-stage, upflow/horizontal installation with solid airflow control. The multi-speed ECM motor enhances efficiency and reduces noise, improving comfort in living spaces. This model replaces older Goodman units and is suitable for nationwide installation (CA not included).
Why selected: It delivers balanced heat with a straightforward installation path and ECM-based airflow management, supporting quieter operation and better control of temperature with fewer drafts.
Caution: This furnace cannot be installed as a downflow unit; look for GD9-series if downflow is required. Contact support if you need clarifications about compatibility with existing ductwork.
ACiQ 60,000 BTU 80% AFUE Gas Furnace
Best for: Homes seeking a cost-effective 80% AFUE option with 14″ upflow/horizontal installation and a 9-speed ECM blower for stable heat and airflow. It’s appropriate for spaces where modest heating capacity and energy savings are priorities.
Why selected: Combines dependable heating with flexible installation and a value-driven feature set, suitable for standard-sized living areas.
Caution: Not California or Colorado Ultra-Low NOx compliant; verify local regulations before purchase.
ACiQ 100000 BTU 92% AFUE Propane Furnace
Best for: Larger homes or spaces needing high heat output with strong efficiency. The 92% AFUE rating and 2000 CFM capacity enable robust warmth in colder climates while supporting consistent performance with a 9-speed ECM blower.
Why selected: High capacity and efficiency balance heat experience with potential energy savings. It also complies with California and Colorado Low NOx regulations.
Caution: Requires appropriate venting using plastic/PVC materials; ensure venting compatibility with existing systems.
ACiQ 60,000 BTU 96% AFUE Propane Furnace
Best for: Energy-conscious buyers who want near-top efficiency in a mid-capacity unit. The 96% AFUE rating helps minimize fuel use while delivering dependable heat in 17.5″ upflow/horizontal installations.
Why selected: Provides strong efficiency with compliance for California/Colorado regulations and compact sizing for tighter spaces.
Caution: While highly efficient, ensure the installation footprint matches the 17.5″ cabinet width and duct layout to avoid fit issues.
Mr. Heater 80,000 BTU Forced-Air Unit Heater
Best for: Garages, barns, and workshops needing rapid space heating with propane or natural gas. This ceiling-mounted unit delivers high BTU output to warm large volumes quickly.
Why selected: Specifically designed for non-living spaces where quick, robust heat is necessary and ceiling mounting optimizes floor space usage.
Caution: Not a whole-home furnace; best used as supplemental or separate-space heating in addition to a main heating system.
Buying Guide: Key Considerations For Propane Furnaces
- Efficiency and fuel use: Compare AFUE ratings to estimate annual fuel savings. Higher efficiency reduces operating costs but may come with higher upfront costs.
- Installation type: Upflow, horizontal, or downflow configurations determine compatibility with existing ductwork. If you need downflow, seek models starting with GD9 or verify with a professional.
- Heat output and space size: Match BTU capacity to home square footage and climate. Oversized units may cycle frequently, while undersized units struggle in cold weather.
- Blower and airflow control: ECM motors offer variable-speed operation for quieter, more even heat distribution and better efficiency.
- NOx regulations: Some models comply with California/Colorado Low NOx; verify local code requirements before purchase.
- Venting requirements: Some models require PVC/plastic venting; confirm compatibility with existing venting infrastructure.
- Maintenance and service: Look for models with accessible service components and straightforward filter/dust management to minimize downtime.
- Cost of ownership: Consider installation costs, potential rebates, and expected energy savings over time to determine total ownership cost.
Frequently Asked Questions
- What does 80% AFUE mean for a propane furnace? It indicates 80% of the fuel’s energy converts to heat for your home, with 20% lost to exhaust and inefficiencies.
- Is a higher BTU rating always better? Not necessarily. Choose BTU based on home size, insulation, and climate to avoid excessive cycling or insufficient heating.
- Do all propane furnaces require the same venting? Venting needs vary; some units require PVC/plastic venting, while others may use metal venting. Check the model’s requirements.
- Are there units compliant with ultra-low NOx regulations? Some models comply with Low NOx standards; verify local regulations and product specs before buying.
- Can I install a propane furnace myself? Installation should be performed by a licensed HVAC professional to ensure safety and code compliance.
- Which furnace is best for a large, uninsulated space? Higher-BTU units with strong airflow, combined with proper insulation and sealing, typically perform best in larger spaces.