Pros
- Powerful heating output
- Natural gas is often cost-effective
- Fast heating response
Cons
- Requires gas line
- Produces carbon monoxide (needs safety checks)
- Not as efficient as top heat pumps in moderate climates
- Gas line connection
- Venting requirements
- Ductwork integration
- Change filter regularly
- Annual professional inspection (heat exchanger, burners)
- Keep area around furnace clear
See Part 5 of our guide for detailed maintenance schedules.
Manufacturer Examples for Gas Furnaces
Below are examples from different manufacturers known for this type of system. This is not exhaustive, and specific model features/performance vary. Focus on comparing reputation, warranty, typical price range, and stated pros/cons.
Known for innovation and a wide range of options, often positioned as a premium brand.
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Wide product range
Advanced features (Greenspeed Intelligence)
Can be more expensive
Warranty: 10-year parts limited (registration required)
Strong reputation for durability and reliability, often marketed with "It's Hard to Stop a Trane".
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Excellent durability reputation
Climatuff Compressor well-regarded
Often among the most expensive options
Warranty: 10-year parts limited (registration required), some models offer longer compressor warranty
Focuses on high-efficiency and innovative features, particularly in their top-tier Dave Lennox Signature Collection.
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Very high efficiency models available (up to 28 SEER)
Quiet operation on premium models
Premium models are expensive
Warranty: 5-10 year parts limited (registration often required for 10 years)
Often considered a budget-friendly option, known for good warranty coverage and wide availability.
Quick Look:
More affordable upfront cost
Generally good warranty (esp. if registered)
Reliability ratings sometimes lower than premium brands
Warranty: 10-year parts limited (registration required), some units offer lifetime compressor warranty
Related Guides
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