Here comes fall
The cooler weather is coming, but how much do you actually know about your home's heating system?
Donaven
8/11/20251 min read
As a home inspector, I often come across gas furnaces during inspections—especially in older or traditional homes. These systems have long been a popular choice for heating because they’re reliable, effective, and provide strong, consistent heat, even in very cold climates.
Pros of Gas Furnaces:
Fast, Powerful Heat: Gas furnaces heat air quickly and maintain warm temperatures even during the coldest months.
Lower Operating Costs (in some areas): Natural gas can be cheaper than electricity, making gas furnaces more affordable to run over time.
Proven Technology: These systems have been around for decades. Parts and service are widely available.
Cons of Gas Furnaces:
Efficiency Can Vary: Older models can be only 60-80% efficient, meaning a significant portion of energy is wasted. Newer models are better, but still lose some heat through venting.
Carbon Monoxide Risk: A cracked heat exchanger or poor ventilation can lead to carbon monoxide leaks. Annual maintenance is critical for safety.
Shorter Lifespan than You Think: Most gas furnaces last 15-20 years. Without regular upkeep, that number drops.
In recent years, electric heat pumps and mini-split systems have gained popularity—and for good reason. They’re often more energy-efficient, safer (no combustion), and offer both heating and cooling in one system. In milder climates, or in well-insulated homes, they can be an excellent alternative worth considering.
Whether you're keeping your gas furnace or exploring new options, staying informed helps you make the best decision for your comfort, safety, and budget.