Test for any dangerous gas leaks such as CO. Test the ignition system for safe and proper operation. Test the safety and control circuits. Ensure the exhaust is venting properly.
On average, most furnaces last between 15 and 30 years, so if your furnace is 40 years old, it's well past that range. The following are the estimated lifespans of different furnaces: Natural gas: 10 to 20 years. Propane: 15 to 30 years.
Some of the items that may be included on a gas furnace safety checklist are checking for proper ventilation, checking for gas leaks, checking the burners for proper ignition and operation, inspecting the heat exchanger for cracks or corrosion, testing the thermostat, and checking the flue pipe for proper ventilation.
A furnace that isn't working properly will likely affect the air quality in your home. If you notice an increase in breathing problems among your family members, such as asthma or other chest related illnesses, your furnace may be to blame.
The most common HVAC fire hazard by far is a loose electrical connection. Over time, wiring connections can become loose due to the vibration of HVAC equipment.
Some DIY Work Can Be Illegal
In California, installing a furnace or other major HVAC component requires pulling a building permit, which is issued by the city or county. A permit ensures a project is inspected and meets safety and structural standards.
Salinas, California: $4,428.
Inspecting the air filter is the first item on our furnace maintenance checklist because it is so critical to performance. Regular air filter replacement is essential, whether your furnace is electric or burns natural gas, propane, or oil.
You can find general rules in the International Residential Code (IRC) and your appliance manual, which should specify the required clearances. Typically, the minimum clearance for most furnaces is 3 feet, with an additional 2-foot clearance in the front for maintenance.
The NFPA 86 guidelines set standards for how industrial furnaces and ovens are to be built in order to promote safety. The guidelines lay out how furnaces should be designed, labeled, and equipped in case of fire or explosion hazards.
Springtime is among the best times to replace your furnace, especially in early to mid-spring. Generally, winter demands are winding down, and the summer cooling season has yet to arrive, creating a lull. During this time, special deals or discounts could be available.
Installation Entails More than Just the Furnace
For a gas-powered furnace, a contractor must set up a gas connection and vent. Installing an electric furnace requires running wiring, adding a circuit breaker, or perhaps updating an electrical panel. Holes are often drilled for pipes and wires.
Repair: If your furnace system is less than 15 years old and the cost of repair is less than half the cost of replacement. Replace: If your furnace system is more than 15 years old and requires a costly repair to maintain efficiency.
When technicians pass the licensing exam, they are deemed fully knowledgeable in the HVAC field. Handymen won't have an HVAC license, which means they may not even possess adequate training to successfully work on your heating or cooling system.
Understanding Total Costs
Gas Furnace: $3,000 – $6,000. Electric Furnace: $2,500 – $5,000. Oil Furnace: $4,000 – $8,000.
Identifying the Priciest Component: The Heat Exchanger
Due to its complex role, a failure or crack in the heat exchanger can lead to serious issues, including dangerous carbon monoxide leaks. This makes furnace repair essential to maintain safety and functionality.
TLDR: Maintaining a well-functioning furnace is crucial for home comfort and energy efficiency. Whether your furnace is new or old, regular inspections are vital. They ensure safety, optimize efficiency, prolong the system's lifespan, and provide peace of mind.
If your furnace is over 20 years old, it might be time to consider a replacement, especially if you're experiencing issues like poor air quality, frequent repairs, or high energy bills.
Inadequate Gas Pressure
It also causes unwanted condensation within the heat exchanger, increasing the rate of corrosion. Conversely, high gas pressure can produce excessive heat in the furnace, which can cause the soot inside the heat exchanger to combust. Such fires can readily spread to other areas.
Failing parts within your HVAC system can escalate into a serious fire risk. Fortunately, having your unit regularly inspected and maintained by an HVAC professional can help you detect and resolve issues before they lead to a fire.
NFPA 90A is the Standard for the Installation of Air-Conditioning and Ventilating Systems, and NFPA 90B is the Standard for the Installation of Warm Air Heating and Air-Conditioning Systems. Both standards address the construction, installation, operation, and maintenance of HVAC systems.