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New Orleans winters are short, but they are not forgiving. When temperatures drop into the 20s and 30s in December and January, a furnace or heat pump that has not been serviced all year will struggle to keep up, and the timing could not be worse. At Big Easy Air Conditioning, we provide comprehensive heating maintenance for homeowners and businesses across the Greater New Orleans area. Our technicians service gas furnaces, heat pumps, package units, and dual-fuel systems, making sure your equipment is ready before the cold arrives. Call us at 504-636-8724 to schedule your pre-season tune-up.
Heating maintenance in Southeast Louisiana is not the same as maintenance in a northern climate. The combination of high humidity, salt air near the coast, and the region’s notorious clay soil creates conditions that accelerate wear on heating equipment far faster than dry climates. A maintenance schedule that works in Dallas or Atlanta is often not enough here. Understanding why New Orleans homes demand more frequent attention is the first step to getting the most out of your system.
Most homeowners in the Gulf South underestimate how much punishment their heating systems take, precisely because the winters seem mild by national standards. The reality is that short, intense cold snaps are harder on equipment than sustained cold. A furnace that sits idle through a long, humid summer and then has to fire up and run at full capacity during a sudden polar air mass has far less margin for error than a system in Minneapolis that runs continuously from October through April.
Humidity is the primary enemy of heating equipment in New Orleans. Condensation forms inside heat exchangers and flue pipes during the off-season when systems are idle. Over several years, this moisture promotes rust on metal components and degrades the structural integrity of heat exchangers. A cracked heat exchanger is one of the most dangerous HVAC failures possible because it allows carbon monoxide from combustion to mix with the air circulating through your home. Annual inspection is the only reliable way to catch cracks before they become a safety emergency.
Salt air compounds the corrosion problem for homes within a few miles of Lake Pontchartrain, the Mississippi River, and especially closer to the Gulf. Outdoor condenser coils and heat pump units in these zones corrode faster than units located further inland. Coil coatings and corrosion-inhibiting treatments are an important part of maintenance for coastal properties.
Louisiana’s clay soil is expansive: it swells when wet and contracts when dry. This constant movement causes foundations to shift, and ductwork connections in crawl spaces and attics move with them. Separated duct joints dump conditioned air into unconditioned spaces, forcing your heating system to run longer and work harder. Inspecting duct connections is a standard part of every Big Easy Air Conditioning heating tune-up.
A Big Easy Air Conditioning heating maintenance visit is a comprehensive inspection, not a 15-minute filter swap. Our technicians work through a full checklist on every visit, covering the components that matter most for safety, efficiency, and reliability.
For gas furnaces, the heat exchanger inspection is the most critical safety check on the entire list. The heat exchanger is the metal chamber that separates combustion gases (including carbon monoxide) from the air that circulates through your home. Cracks develop over years of thermal expansion and contraction. Our technicians perform a visual inspection of all accessible heat exchanger surfaces and use a CO combustion analyzer to detect leakage at the air handler outlet. A cracked heat exchanger requires immediate system shutdown and replacement of the exchanger or the furnace.
Modern furnaces use hot surface ignitors rather than standing pilots. These ceramic or silicon nitride elements typically last five to seven years but degrade gradually. A weak ignitor that passes the ignition test during mild weather in October may fail to light the burners on the first brutally cold night in January. We test ignitor resistance and compare it against manufacturer specifications to identify ignitors approaching end of life before they fail.
Gas burners accumulate dust, rust particles, and combustion deposits over the heating season. Dirty burners produce uneven flames, incomplete combustion, and elevated carbon monoxide output. We remove and clean burners, then visually inspect the flame pattern after reinstallation. The flame on a properly functioning gas furnace should be steady and blue with only a small orange tip. Yellow or orange flames indicate combustion problems that need immediate attention.
Gas manifold pressure affects combustion efficiency and heat output. Pressure that is too low produces insufficient heat and causes the burners to cycle on and off more frequently. Pressure that is too high stresses the heat exchanger and burner ports. We measure both supply pressure and manifold pressure with a calibrated manometer and adjust to the manufacturer’s specified range.
The flue pipe carries combustion gases from the furnace to the exterior of the building. Corroded flue connections, loose joints, and blocked terminations are common problems in the humid New Orleans climate. We inspect the entire accessible flue run, check draft at the flue outlet, and confirm that the flue termination is clear of vegetation, animal nests, and debris. Blocked or damaged flues can cause combustion gases to backdraft into living spaces.
The blower motor circulates air through the heat exchanger and into your duct system. Many older furnaces have PSC (permanent split capacitor) blower motors with oil ports that require annual lubrication. Newer ECM (electronically commutated motor) blowers are sealed and require no lubrication but benefit from inspection of the motor controller board. We check blower amperage draw and compare it to the nameplate rating, catching motors that are beginning to fail before they stop entirely.
Older furnaces with belt-drive blowers need belt tension and condition inspection annually. Cracked, glazed, or loose belts are replaced. Belt-drive systems are becoming less common but are still found in homes with older equipment or commercial package units.
Gas furnaces have multiple safety controls that shut the system down if operating conditions become unsafe: the high-limit switch (activates if the heat exchanger overheats), the rollout switch (activates if flames roll out of the combustion chamber), and the pressure switch (confirms proper draft before allowing ignition). We test each control to confirm it responds correctly. Faulty safety controls are a serious concern because they can allow the furnace to operate under conditions that damage the heat exchanger or create a fire hazard.
A thermostat that reads two or three degrees higher than the actual room temperature causes the system to short-cycle, increasing wear and reducing efficiency. We verify thermostat accuracy with a calibrated reference thermometer and recalibrate or replace thermostats that are reading incorrectly. We also check heat anticipator settings on older mechanical thermostats and verify scheduling and setback programming on programmable and smart thermostats.
In heat pump systems and combination systems, the evaporator coil accumulates dust and microbial growth during the cooling season. A dirty coil restricts airflow and reduces heating capacity in heat pump mode. We clean accessible coil surfaces with appropriate coil cleaner and rinse thoroughly to restore airflow.
Heat pumps use refrigerant for both heating and cooling. Low refrigerant charge dramatically reduces heating capacity and forces the backup electric resistance heat strips to carry more of the load, increasing operating costs substantially. We check system pressures during heating operation and verify that refrigerant charge is within the manufacturer’s specified operating range. Refrigerant addition requires EPA 608 certification and proper recovery equipment.
As noted above, Louisiana’s clay soil causes foundation movement that pulls duct connections apart over time. We inspect visible ductwork connections at the air handler and in accessible attic and crawl space areas, resealing any separated joints with mastic sealant or UL 181-rated tape.
We replace the air filter at every maintenance visit as standard practice. In New Orleans, where pollen counts are extreme in spring and fall, and where many homes have pets, a monthly filter change schedule is recommended between professional visits. Restricted airflow from a dirty filter is the single most common cause of heating system inefficiency and premature component failure.
Heat pumps are the dominant heating technology in New Orleans homes because they provide both heating and cooling with a single system and operate very efficiently in the mild Gulf Coast climate. Heat pump maintenance has some significant differences from gas furnace maintenance, and understanding those differences helps you know what to expect from a professional tune-up.
A heat pump’s ability to extract heat from outdoor air depends entirely on having the correct refrigerant charge. In heating mode, low refrigerant means the outdoor coil cannot absorb enough heat energy, the compressor runs harder than it should, and the system eventually locks out on a low-pressure safety switch. We check both suction and discharge pressures against temperature-corrected target values to confirm proper charge.
The reversing valve is the component that allows a heat pump to switch between heating and cooling by reversing the direction of refrigerant flow. A stuck reversing valve causes the system to blow warm air in cooling mode or cold air in heating mode. We test the reversing valve by commanding the system to switch modes and verifying that discharge air temperature changes appropriately. A valve that is beginning to fail may stick intermittently, making it difficult to diagnose without a methodical test protocol.
When outdoor temperatures drop below about 35 degrees Fahrenheit and humidity is high (a common combination during New Orleans cold fronts), frost can form on the outdoor coil of a heat pump. The defrost cycle temporarily reverses the system to melt this frost accumulation. A defrost cycle that fails to initiate causes ice to build up on the outdoor unit, dramatically reducing heating capacity. We verify that the defrost control board initiates the defrost cycle correctly and that the defrost termination sensor reads within the correct temperature range.
The outdoor coil of a heat pump absorbs heat from the ambient air in heating mode. A coil clogged with leaves, cottonwood fluff, grass clippings, or salt deposits cannot transfer heat efficiently. We clean the outdoor coil with appropriate coil cleaner and low-pressure water rinse to restore airflow and heat transfer capacity. Homes near heavily planted areas or near the coast benefit from outdoor coil cleaning at every annual visit.
Modern heat pumps are rated by their Heating Seasonal Performance Factor (HSPF2), which measures heating efficiency over an entire season. While we cannot precisely measure a system’s HSPF2 rating in the field, we can verify that the system is operating within the expected temperature rise and pressure ranges that indicate it is performing close to its rated efficiency. Significant deviations from expected performance suggest refrigerant charge problems, compressor issues, or coil degradation.
Gas furnaces remain common in New Orleans homes built before the widespread adoption of heat pump technology, and in homes where natural gas is available and preferred for its low cost per BTU. Gas furnace maintenance has one overriding priority that separates it from heat pump maintenance: combustion safety.
The heat exchanger separates the combustion process from the living space. When the heat exchanger is intact, combustion gases (nitrogen oxides, carbon monoxide, sulfur dioxide, and water vapor) exhaust safely up the flue pipe while clean filtered air passes over the outside of the exchanger and absorbs heat before entering your living areas. When the heat exchanger cracks, these combustion gases enter the airstream. Carbon monoxide is odorless and colorless. Exposure to elevated CO levels causes headache, nausea, and confusion before incapacitation. Long-term low-level exposure has serious neurological effects. A cracked heat exchanger is not a problem to defer: it is a reason to shut the system down immediately and arrange for repair or replacement. Our technicians use both visual inspection and combustion gas analysis to detect heat exchanger cracks with the highest possible accuracy.
Clean, properly adjusted burners produce a stable blue flame that indicates complete combustion of the natural gas fuel. Dirty or misadjusted burners produce yellow, orange, or lifting flames that indicate incomplete combustion and elevated CO production. We clean burners, inspect burner ports for blockage, and perform a flame analysis after startup to confirm proper combustion across all stages of operation.
The gas valve controls fuel flow to the burners. Valves that stick open are a serious safety hazard. Valves that stick closed or open partially cause ignition failures or reduced heat output. We verify that the gas valve opens and closes cleanly on command and that gas pressure at the manifold is within specification.
The flame sensor (also called a flame rod) is a small metal probe that detects whether the burners have lit before allowing gas flow to continue. Over time, the sensor accumulates oxidation that reduces its ability to detect the flame, causing the furnace to light, run briefly, and then lock out on a safety fault. Cleaning the flame sensor is one of the most common maintenance tasks on gas furnaces and one that homeowners should never attempt on their own (the sensor is very easy to break).
Annual maintenance catches most problems before they cause a breakdown. But some issues develop between scheduled visits and need prompt attention. Contact Big Easy Air Conditioning immediately if you notice any of the following:
The standard recommendation is once per year, in September or October before cold fronts arrive. New Orleans’s climate makes this timing especially important: the first cold snap of the season often arrives quickly and without much warning, and HVAC contractors’ schedules fill up rapidly when temperatures drop.
Homes with gas furnaces older than 10 years benefit from twice-yearly inspection (pre-season in fall and a mid-season check in January) due to the higher risk of heat exchanger degradation in aging equipment. Heat pumps that provide both heating and cooling may benefit from a second inspection each spring as part of cooling season preparation.
Between professional visits, change your air filter every 30 days during heavy-use periods. Mark filter change dates on a calendar or set a phone reminder. Keep outdoor heat pump units clear of vegetation, mulch, and debris. Check that all supply and return grilles are open and unobstructed. These simple steps between professional tune-ups significantly extend the life of your equipment and reduce the likelihood of mid-season breakdowns.
Entergy New Orleans periodically offers rebates for homeowners who upgrade to high-efficiency heating equipment, including qualifying heat pumps and other ENERGY STAR-rated HVAC systems. These programs change from year to year in terms of qualifying equipment models, rebate amounts, and application deadlines. At the time of your maintenance visit, our technicians can advise you on whether your current equipment is approaching end of life and whether replacement options would qualify for available utility rebates.
Beyond utility rebates, the federal Inflation Reduction Act (IRA) provides a tax credit of up to 30 percent of the installed cost of qualifying heat pumps (capped at $2,000 per year) through 2032. If you are considering replacing an aging gas furnace with a modern heat pump, the combination of the federal tax credit and any available Entergy rebates can significantly offset the initial cost. Ask your Big Easy Air Conditioning technician about energy-efficient upgrade options at your next maintenance appointment.
Big Easy Air Conditioning provides heating maintenance throughout the Greater New Orleans metropolitan area, including Metairie, Kenner, Harahan, River Ridge, Gretna, Westwego, Slidell, Covington, Mandeville, and Madisonville. Call 504-636-8724 to schedule your pre-season heating tune-up. Same-day and next-day appointments are often available in September and October before the peak pre-season rush.
A professional heating tune-up in New Orleans typically costs $80 to $150 for a standard furnace or heat pump inspection. The price depends on the system type, system age, and any parts that need replacement. Many HVAC companies offer maintenance agreements that bring the cost down to $60 to $90 per visit when you prepay for two annual visits. Considering that a well-maintained system runs 15 to 20 percent more efficiently than a neglected one, the tune-up usually pays for itself in energy savings by the end of the heating season.
Once a year is the standard recommendation for heating system maintenance. The ideal time is September or October, before the first cold front rolls in from the north. This timing gives your technician a chance to catch any problems before you actually need heat. Between professional visits, change your air filter monthly during heating season and check that supply and return vents are clear of furniture and curtains. Heat pumps that double as your primary cooling system may benefit from a second inspection each spring as part of cooling season prep.
A thorough heating tune-up covers the entire system from thermostat to flue. The technician will inspect the heat exchanger for cracks (critical for gas furnaces), test the ignitor or pilot assembly, clean the burners, measure gas pressure at the manifold, inspect the flue pipe for blockages or corrosion, lubricate the blower motor bearings, check belt tension if applicable, verify all safety controls, calibrate the thermostat, clean the evaporator coil, and inspect ductwork connections at the air handler. For heat pumps, the technician will also check refrigerant charge, test the reversing valve, inspect the defrost cycle, and clean the outdoor coil.
Homeowners can handle a few tasks: changing the air filter monthly, keeping outdoor heat pump units clear of debris, and checking that vents are unobstructed. Everything else requires a licensed HVAC technician. Inspecting the heat exchanger for cracks requires specialized combustion analysis tools and a trained eye. Checking gas pressure and verifying CO levels at the flue outlet require calibrated instruments. Handling refrigerant (for heat pumps) is legally restricted to EPA 608-certified technicians. Attempting these tasks without proper training and equipment is dangerous and can void your equipment warranty.
Yes, heat pump maintenance differs from gas furnace maintenance in several important ways. Heat pumps have no combustion components, so there is no heat exchanger to inspect for cracks and no flue pipe to check. Instead, heat pump maintenance focuses on refrigerant charge, the reversing valve (which switches the system between heating and cooling modes), the defrost cycle, and the outdoor coil condition. Gas furnace maintenance centers on combustion safety: heat exchanger integrity, burner condition, gas pressure, and flue integrity. Both system types share common tasks like blower motor service, filter replacement, and thermostat calibration.
Entergy New Orleans periodically offers rebates for high-efficiency HVAC equipment, including heat pumps that meet ENERGY STAR specifications. Rebate amounts and eligibility requirements change year to year, so the best approach is to check the Entergy New Orleans website or ask your HVAC technician about current programs at the time of your tune-up. Additionally, the federal Inflation Reduction Act tax credit covers up to 30 percent of the cost of qualifying heat pump installations (up to $2,000 per year) through 2032. Your technician can confirm whether a new system you are considering qualifies for both the federal credit and any available utility rebates.