Choosing the right natural gas air conditioner or furnace manufacturer is crucial for achieving optimal home comfort and energy efficiency. This article highlights top products from leading brands known for reliability and performance. Below is a summary table of the featured natural gas furnaces and heaters to help you compare key specifications quickly.
| Product Name | Brand | BTU | AFUE Efficiency | Installation Type |
|---|---|---|---|---|
| Goodman 80% AFUE Single Stage 80k BTU (GR9S800803BN) | Goodman | 80,000 | 80% | Upflow/Horizontal |
| Goodman 80% AFUE Single Stage 80k BTU Low NOx (GR9S800803BX) | Goodman | 80,000 | 80% | Upflow/Horizontal |
| Goodman 96% AFUE Single Stage 80k BTU Low NOx (GR9S960803BN) | Goodman | 80,000 | 96% | Upflow/Horizontal |
| Goodman 80% AFUE Single Stage 60k BTU (GR9S800603AN) | Goodman | 60,000 | 80% | Upflow/Horizontal |
| Comfort Glow 17,000 BTU Direct Vent Natural Gas Wall Heater | Comfort Glow | 17,000 | Not Specified | Wall Mounted |
Goodman 80% AFUE Single Stage 80k BTU Natural Gas Furnace

This Goodman furnace is designed for both upflow and horizontal installation, making it versatile for different HVAC setups. It delivers 80,000 BTU and boasts an 80% AFUE (Annual Fuel Use Efficiency) rating, offering reliable heating performance. The multi-speed blower motor helps maintain consistent airflow while supporting energy efficiency. Its relatively narrow width of 17.5 inches allows it to fit into confined spaces.
Goodman 80% AFUE Low NOx Natural Gas Furnace 80k BTU

This model emphasizes environmental considerations with its Low NOx emissions technology, reducing pollutants released into the atmosphere. It includes a 10-year parts limited warranty when installed by a qualified professional and registered online within 60 days. The furnace is compatible with various accessories like thermostats and LP conversion kits sold separately, providing flexibility for different household needs.
Goodman 96% AFUE Single Stage 80k BTU High-Efficiency Furnace

For homeowners aiming for maximum efficiency, this Goodman furnace features an impressive 96% AFUE rating. Its advanced heat exchanger optimizes fuel consumption, which can translate into lower energy bills over time. The furnace also includes a 10-year parts limited warranty when properly installed and registered, ensuring long-term protection. Its design supports both upflow and horizontal orientation.
Goodman 80% AFUE Single Stage 60k BTU Natural Gas Furnace

This furnace offers reliable heating with a slightly lower output of 60,000 BTU, suitable for smaller homes or spaces. Maintaining the standard 80% AFUE efficiency, it features a durable build and quality components. Like other Goodman models, it carries a 10-year parts warranty under installation and registration conditions, providing assurance for homeowners seeking efficient natural gas heating solutions.
Comfort Glow 17,000 BTU Direct Vent Natural Gas Wall Heater

Ideal for supplemental heating, the Comfort Glow wall heater delivers 17,000 BTU and can warm areas up to 570 square feet. Its sealed burn system with matchless piezo ignition and safety pilot built-in pressure regulator enhances safety by stopping gas flow if the pilot flame extinguishes. The wall-mounted, space-saving design measures 20 inches high by 27.3 inches wide, making it practical for various room sizes.
Buying Guide for Natural Gas Air Conditioners and Furnaces
Efficiency Ratings and Energy Savings
Look for AFUE (Annual Fuel Use Efficiency) ratings to understand how effectively a furnace converts fuel into heat. Higher percentages mean better efficiency and potential energy cost savings. Models with 90% or above AFUE are considered high-efficiency units.
Installation Configuration and Space Requirements
Assess your home’s HVAC layout to determine if you need an upflow, downflow, or horizontal furnace. Check product dimensions to ensure the unit fits properly in your designated space without installation issues.
Environmental Considerations
Low NOx (Nitrogen Oxides) models emit fewer pollutants, contributing to cleaner air and compliance with environmental regulations. Choose these if ecological impact is a priority.
Output Capacity (BTU)
Select the appropriate BTU rating based on your home size and heating needs. Oversized units waste energy while undersized may not heat effectively. Consulting an HVAC expert for load calculations is recommended.
Warranty and Support
Check warranty terms, especially on parts and labor. Registered installations with certified professionals often qualify for extended coverage. A longer warranty period provides peace of mind regarding product durability.
Additional Features
Consider multi-speed blowers, compatibility with smart thermostats, and accessory options to enhance comfort, ease of use, and system integration.