Frequently Asked Questions

Homeowners often have questions about how their heating and cooling systems work, when maintenance is needed, and how to improve efficiency. HVAC equipment is one of the most important systems in a home, and understanding how it operates can help prevent unexpected breakdowns and improve long-term performance.

Below are answers to some of the most common questions we receive from homeowners throughout the Metro East area.

We recommend servicing your heating and cooling system twice a year. One inspection should be scheduled before the cooling season and another before the heating season. These seasonal inspections help ensure the system is prepared for increased use and operating at peak efficiency.

Higher energy bills can result from several factors including aging HVAC equipment, clogged air filters, duct leaks, or poor insulation. When heating or cooling systems become less efficient, they must run longer to maintain the same indoor temperature. This increases energy usage and monthly utility costs. A professional inspection can help identify the cause and recommend improvements that restore system efficiency.

The lifespan of HVAC equipment depends on maintenance, system usage, and installation quality. In most homes, air conditioners and furnaces last between 10 and 15 years. Regular maintenance can help extend the life of the system by keeping components clean and operating correctly. When equipment begins to approach the end of its lifespan, replacing it with a modern system can provide improved efficiency and reliability.

Choosing the correct system size is essential for maintaining comfort and efficiency. A system that is too small may struggle to heat or cool the home properly, while an oversized unit may cycle on and off too frequently.

HVAC professionals calculate system size based on several factors including square footage, insulation levels, window placement, and climate conditions. Proper system sizing ensures balanced airflow, efficient operation, and consistent indoor temperatures.

Indoor air quality refers to the cleanliness and health of the air inside your home. Dust, allergens, pet dander, and other airborne particles can accumulate in indoor spaces and affect comfort.

Modern HVAC systems can be equipped with advanced filtration systems, air purifiers, humidifiers, and dehumidifiers to help improve indoor air quality.

Maintaining clean air inside the home can help reduce allergens and create a more comfortable living environment.

Yes. B & W Heating & Cooling provides emergency HVAC services to help homeowners when unexpected system failures occur. Heating and cooling issues can happen at any time, especially during extreme weather conditions. Having access to emergency service ensures that repairs can be performed quickly to restore comfort to your home.

When an air conditioner runs but does not cool properly, several issues may be responsible. A clogged air filter can restrict airflow and reduce cooling performance. Low refrigerant levels, dirty evaporator coils, or problems with the outdoor condenser unit can also affect how efficiently the system removes heat from the home. If the system continues to run without lowering indoor temperatures, it is best to have a technician inspect the equipment. Identifying the cause early can prevent additional strain on the system and reduce the risk of more expensive repairs.

A furnace that blows cold air may be experiencing several possible problems. The thermostat settings could be incorrect, the pilot light may be out, or the system may have an issue with the ignition components. Clogged filters can also restrict airflow and affect heating performance. If the furnace continues to blow cold air after checking the thermostat and filter, professional inspection is recommended to diagnose the issue safely.

Most HVAC system installations can be completed within one day, depending on the type of equipment and the complexity of the installation. Replacing a furnace or air conditioner with similar equipment often takes several hours. More complex installations involving ductwork modifications or multiple systems may require additional time. A professional technician can provide a more accurate estimate after evaluating the home and equipment requirements.

A heat pump is a system that provides both heating and cooling using a single piece of equipment. Instead of generating heat directly, the system transfers heat from one place to another. During the summer, the heat pump removes heat from inside the home and releases it outdoors. During colder months, it extracts heat from the outside air and transfers it indoors. This process allows heat pumps to operate efficiently while providing year round comfort.

Frequent cycling, often called short cycling, can occur when a system is improperly sized, when airflow is restricted, or when thermostat issues prevent the system from maintaining steady operation. Short cycling reduces efficiency and places additional strain on system components. A professional inspection can help identify the cause and restore proper operation.

In most cases, covering the outdoor unit is not necessary. Air conditioners are designed to withstand outdoor weather conditions throughout the year.

However, some homeowners choose to place a breathable cover over the top of the unit to prevent debris such as leaves and branches from accumulating inside. If a cover is used, it should allow airflow to prevent moisture buildup.

Uneven temperatures in a home can result from several factors including poor airflow, ductwork leaks, insulation issues, or thermostat placement.

Rooms that receive more sunlight or are farther from the HVAC system may experience temperature differences. Adjusting airflow, sealing ducts, or improving insulation can help improve overall comfort.

Reducing heating and cooling costs often begins with improving system efficiency. Replacing air filters regularly, sealing air leaks around windows and doors, and scheduling routine HVAC maintenance can help reduce energy usage. Upgrading to energy efficient equipment or installing a programmable thermostat can also improve temperature control and reduce operating costs throughout the year.

A ductless mini split system is a heating and cooling system that does not require traditional ductwork. These systems consist of an outdoor unit connected to one or more indoor units that deliver conditioned air directly into specific rooms. Ductless systems are commonly used in home additions, basements, garages, and older homes where installing ductwork is difficult. They provide flexible temperature control and are known for their energy efficiency.

A ductless mini split system is a heating and cooling system that does not require traditional ductwork. These systems consist of an outdoor unit connected to one or more indoor units that deliver conditioned air directly into specific rooms. Ductless systems are commonly used in home additions, basements, garages, and older homes where installing ductwork is difficult. They provide flexible temperature control and are known for their energy efficiency.

Occasional odors when your HVAC system starts can have several causes. Dust that collects on heating components during warmer months may burn off when the furnace runs for the first time in the season. Musty odors can sometimes indicate moisture buildup in the system or ductwork. Electrical or burning smells should always be inspected quickly because they may indicate a wiring issue or overheating component. If unusual odors continue after the system has been running, it is best to have a technician inspect the equipment to determine the source.

HVAC maintenance focuses on keeping the system running efficiently and preventing problems before they occur. During maintenance visits, technicians inspect components, clean system parts, check airflow, and verify that the equipment is operating properly. HVAC repair is needed when a specific problem has already developed, such as a failing motor, refrigerant leak, or ignition issue. Regular maintenance can reduce the likelihood of unexpected repairs and help extend the life of the system.

Air conditioner coils can freeze when airflow is restricted or refrigerant levels are too low. A clogged air filter is one of the most common causes because it prevents warm air from passing over the evaporator coil. When airflow is limited, the coil temperature drops and ice begins to form. Low refrigerant levels can also lead to freezing because the system cannot absorb heat properly. If the system freezes repeatedly, it should be inspected to prevent compressor damage.

Ductwork should be inspected periodically to ensure it is properly sealed and delivers air efficiently throughout the home. Over time, ducts may develop leaks or loose connections that allow conditioned air to escape into attics or crawl spaces. This reduces system efficiency and can lead to uneven temperatures between rooms. An inspection every few years can help identify airflow issues and ensure the HVAC system is operating effectively.

HVAC systems should operate with a steady airflow sound, but excessive noise may indicate a problem. Loose components, worn blower motors, or debris inside the unit can cause rattling or buzzing sounds. Airflow restrictions can also create whistling noises through vents or ducts. If the system suddenly becomes louder than usual, a technician should evaluate the equipment to determine the cause and restore quiet operation.

SEER stands for Seasonal Energy Efficiency Ratio. It measures how efficiently an air conditioner converts electricity into cooling over an entire season. Systems with higher SEER ratings use less energy to produce the same level of cooling compared to lower rated equipment. Modern systems often have significantly higher SEER ratings than older units, which can help reduce energy costs while improving overall performance.

AFUE stands for Annual Fuel Utilization Efficiency. It measures how efficiently a furnace converts fuel into usable heat. A furnace with a higher AFUE rating wastes less energy during operation. For example, a furnace with a 95 percent AFUE rating converts most of its fuel into heat while only a small portion is lost through exhaust. High efficiency furnaces can help homeowners reduce heating costs during the winter months.

Yes, landscaping can influence HVAC system performance, especially around the outdoor condenser unit. Plants, shrubs, or debris that block airflow around the outdoor unit can reduce cooling efficiency and place additional strain on the system. Keeping at least two feet of clear space around the outdoor unit allows proper airflow and helps maintain system performance. Regularly removing leaves and debris can also help prevent airflow restrictions.

HVAC zoning divides a home into separate areas that can be controlled independently using multiple thermostats and dampers in the ductwork. This allows different rooms or floors of the home to maintain different temperatures. Zoning systems improve comfort because areas that receive more sunlight or are used more frequently can be adjusted without affecting the rest of the house. They can also improve efficiency by directing heating or cooling only where it is needed.

An HVAC system must be properly sized to heat and cool a home efficiently. A system that is too small may run continuously without maintaining comfortable temperatures. A system that is too large may cycle on and off too frequently, which reduces efficiency and causes uneven temperature control. HVAC professionals determine the correct system size by evaluating factors such as square footage, insulation levels, window placement, and local climate conditions. Proper sizing ensures balanced comfort and efficient operation.

If you have additional questions about heating and cooling systems, the team at B & W Heating & Cooling is always ready to help. Our experienced technicians can provide guidance, diagnose system issues, and recommend solutions that improve comfort and efficiency.

Contact B & W Heating & Cooling today to schedule service or speak with a member of our team about your HVAC needs.