Frequently Asked Questions

Have HVAC and plumbing questions? Visit our Stanley Heating Cooling & Plumbing FAQ section for answers to some of your most frequently asked questions. Call us today to schedule service in Dayton, OH, or the nearby cities of Huber Heights, Bellbrook, Beavercreek, and surrounding areas.

The short answer is yes. However, furnace fires and explosions rarely happen, especially with of the way we build modern furnaces that boast advanced safety features. Invest in proper system maintenance to keep your unit working optimally all year round and lower the risk of a fire or explosion. You also want to schedule prompt repairs and replacement services to minimize these risks.
The smell of burning plastic coming from your heater could mean that a foreign object has made its way into your system’s heating unit. This could be anything from your kid’s plastic toy to a plastic component from the unit itself. Whenever you notice your heater giving off the smell of burning plastic, please turn off your system and contact our trusted technicians for prompt repairs.
When the air coming out of your AC smells like vinegar you probably have an ozone-emitting electric motor. Other common culprits include:
  • Mold in the ductwork
  • A clogged condensate pan
  • A malfunctioning filter
  • Excess condensation on the coils
The smell of gas from your unit often points to a gas leak that requires immediate attention.
Many property owners deal with water pressure issues at one point or another. The following suggestions may help you address your low water pressure issues before calling a plumber:
  • Look for leaks
  • Clean your aerators
  • Change your showerhead
  • Consider your valves
Usually, if the problem exists in only one area of your home, you can fix it with a bit of investigation. Similarly, a DIY fix should suffice if you’re dealing with a whole-home issue caused by a faulty valve. However, if you’ve tried all options to no avail, you’ll need to call in an expert.
Your water heater may run out of hot water fast for one or more of the following common reasons:
  • A broken dip tube
  • Sediment buildup
  • Multiple appliances using hot water simultaneously
  • You have an old water heater
  • Thermostat issues
If you experience hot water issues, contact Stanley Heating Cooling & Plumbing to diagnose your system and recommend long-lasting solutions.
We recommend checking your filter monthly if you have the 1" disposable filter. If you see dust or dirt, replace it. Higher efficiency pleated filters may last longer, depending on indoor air quality, but should still be checked regularly.
All homes are not the same. Factors such as insulation levels, windows, doors, and other exposures factor into the correct sizing of your equipment. By allowing us to do a complete home inspection we can properly size the system for your home.
30% to 40% is an ideal setting. Over 40% can result in condensation on windows and lead to biological growth that may lead to allergies or respiratory problems.

Stanley serves Dayton, Moraine, Kettering, Oakwood, Beavercreek, Bellbrook, Centerville, Miamisburg, Springboro, Fairborn, Xenia, Englewood, Troy, and other Miami Valley communities. If you are nearby and are not sure whether your home is in the service area, call Stanley at (937) 902-1874.

Yes. Stanley provides emergency service for urgent heating, cooling, and plumbing problems. If your AC stops working during hot weather, your furnace fails in winter, or you have an urgent plumbing concern, call to schedule fast service.

Stanley promotes same-day service for heating, cooling, and plumbing issues when availability allows. Calling early and sharing the symptoms clearly can help the team match you with the right technician and parts.

Yes. Stanley Heating Cooling & Plumbing is locally owned and operated and has served Dayton and Montgomery County homeowners since 2005.

Yes. Stanley lists Ohio license number 46674 on its website.

Yes. Stanley promotes warranty-backed work and a satisfaction guarantee. If there is a concern after service, contact the company so the team can review the issue and work toward a solution.

Stanley services all AC and HVAC brands and notes experience with major brands including Rheem, Carrier, Trane, and Goodman. The right recommendation depends on the home, the existing system, and the homeowner’s comfort goals.

Common signs include warm air from the vents, weak airflow, rooms that do not cool evenly, moisture or leaks near the system, rising utility bills, unusual noises, or the AC running constantly without cooling the home. Stanley recommends calling for professional service when these symptoms show up.

Possible causes include a dirty air filter, thermostat issue, refrigerant leak, blocked outdoor unit, frozen coil, weak airflow, or a failing electrical component. You can check the thermostat setting, filter, outdoor unit, and breaker first. If the system still does not cool, schedule an inspection so a technician can diagnose it safely.

Repair may make sense if the system is newer, the issue is isolated, and the equipment has been reliable. Replacement may be smarter when the AC is older, breaks down often, uses outdated refrigerant, struggles to cool the home, or no longer runs efficiently. A technician can inspect the system and explain whether repair or replacement is the better long-term comfort solution.

An AC tune-up usually includes inspecting the system, checking refrigerant levels, cleaning coils, checking electrical parts, confirming airflow, replacing or checking filters, and making sure key components are operating correctly. Regular tune-ups help improve efficiency and reduce the risk of breakdowns during hot weather.

Most homes should schedule AC maintenance once a year, ideally before peak cooling season. Homes with pets, allergies, heavy system use, or older equipment may benefit from more frequent checks.

The right AC size depends on square footage, insulation, windows, sun exposure, airflow, the number of people in the home, and ductwork condition. An oversized system can cool unevenly and waste energy, while an undersized system may run constantly and still fail to keep up. Stanley recommends a professional home evaluation before choosing new equipment.

A vinegar-like AC smell may come from mold in the ductwork, a clogged condensate pan, a dirty or malfunctioning filter, excess condensation on the coils, or an ozone-emitting motor. If the odor persists, schedule service so the source can be found and corrected.

Treat a gas smell as urgent. Turn the system off, leave the area if the odor is strong, and contact the appropriate emergency utility or a professional right away. A gas odor can point to a leak that needs immediate attention.

Signs can include weak cooling, ice on the coil or refrigerant line, hissing sounds, longer run times, rising energy bills, or warm air from the vents. Because refrigerant handling requires specialized equipment and training, this is not a DIY repair.

Ductless mini splits can be a good fit for additions, garages, rooms without ductwork, hot or cold spots, and homes where zoning would improve comfort. Stanley offers ductless mini split repair and installation, and a technician can confirm whether mini splits fit your layout.

Both can work, but the best choice depends on the home. Furnaces provide strong, steady heat during colder Ohio weather. Heat pumps can heat and cool and may be efficient during milder weather. Many Dayton-area homes use furnaces, while some homeowners choose heat pumps or dual-fuel systems for efficiency and flexibility.

It is possible, but it is rare with modern furnaces when they are properly installed, maintained, and repaired. Regular maintenance, prompt repairs, and replacing unsafe or aging equipment help reduce risk.

A burning plastic smell can mean something foreign entered the heating unit or a plastic component is overheating. Turn off the system and call a technician for prompt inspection and repair.

Start by checking that the thermostat is set to heat, the temperature is set above the room temperature, the air filter is not clogged, the breaker has not tripped, and registers are open. If the furnace still will not run, call a professional because the issue may involve ignition, sensors, gas valves, motors, or electrical parts.

Repair may be best for a newer furnace with an isolated issue. Replacement may make more sense if the furnace is older, has frequent breakdowns, has a cracked heat exchanger, creates uneven heat, or no longer runs safely and efficiently. A professional diagnosis can help you compare safety, comfort, efficiency, and long-term reliability.

A furnace tune-up typically includes inspecting burners, ignition, safety switches, electrical components, blower operation, airflow, thermostat operation, and the filter. The goal is to help the furnace run safely and efficiently before heavy winter use.

Stanley recommends checking a 1-inch disposable filter monthly and replacing it when dust or dirt is visible. Higher-efficiency pleated filters may last longer, but they should still be checked regularly. Homes with pets, dust, allergies, or heavy HVAC use may need more frequent filter changes.

AFUE stands for Annual Fuel Utilization Efficiency. It measures how efficiently a furnace turns fuel into heat over a season. A higher AFUE rating means less wasted energy and better efficiency.

Stanley recommends about 30% to 40% indoor humidity. Humidity above 40% can lead to window condensation and may contribute to biological growth, allergies, or respiratory discomfort.

Warning signs include frequent allergy or asthma symptoms, heavy dust buildup, musty odors, visible mold, stale air, poor ventilation, and ongoing breathing irritation. If these symptoms are common inside the home, an HVAC and indoor air quality inspection can help identify the cause.

Yes. Air filtration systems can reduce dust, pollen, pet dander, and other airborne particles that aggravate allergies and breathing issues. Better filtration also helps keep HVAC equipment cleaner.

UV air purifiers use ultraviolet light inside the HVAC system to help reduce airborne microorganisms such as mold spores, bacteria, and viruses as air passes through the system. They work best as part of a larger indoor air quality plan that includes filtration, ventilation, and regular HVAC maintenance.

Yes, especially if the home has uneven heating or cooling, weak airflow, dust problems, high energy bills, or visible duct damage. Ductwork inspection can find leaks, debris, restrictions, or damage that make the HVAC system work harder.

Duct cleaning can remove dust, debris, pet dander, and buildup inside ductwork. For homes with dust concerns, allergies, recent remodeling, or long-neglected ducts, cleaning may help improve airflow and indoor cleanliness.

Yes. A smart or programmable thermostat can reduce energy use by adjusting temperatures automatically when you are away or asleep. It also gives better control over comfort and can reduce unnecessary HVAC run time.

Zoning divides a home into separate temperature areas so you do not have to heat or cool every room the same way. It can help with multi-level homes, rooms with different sun exposure, and areas that are used at different times of day.

Check whether the issue is limited to one fixture or affects the whole home. You can look for visible leaks, clean faucet aerators, check showerheads, and make sure valves are fully open. If the problem continues, call a plumber to inspect the supply lines, pressure regulator, valves, and possible hidden leaks.

Common causes include sediment buildup, a broken dip tube, thermostat issues, an older water heater, or several appliances using hot water at the same time. A technician can inspect the system and recommend repair, maintenance, or replacement.

Most water heaters should be checked regularly and maintained at least once a year. Maintenance can include flushing sediment, checking components, reviewing safety controls, and confirming reliable hot water performance.

Yes. Tankless water heaters still need maintenance, especially in areas with hard water. Descaling, filter checks, and professional inspection help protect efficiency and system life.

Consider replacement if the unit is old, runs out of hot water often, leaks, makes unusual noises, has rusty water, or needs repeated repairs. Stanley can inspect the current unit and help compare repair and replacement options.

PEX is flexible, corrosion-resistant, leak-resistant when properly installed, and often faster to install than older metal piping. It can be a strong option for repiping or plumbing repairs.

A backflow preventer helps keep contaminated water from flowing backward into clean drinking water lines. It should be installed and maintained by a licensed plumber to help protect the potable water supply.

Every home is different. Insulation, windows, doors, ductwork, square footage, comfort goals, and equipment location all affect the right system size and installation scope. An in-home evaluation helps prevent incorrect sizing and makes sure the recommendation fits the home.

Ask whether the company is licensed, insured, locally experienced, and familiar with your type of system. Also ask whether ductwork and sizing are evaluated, what warranties apply, and what happens if the system does not perform as expected.

Maintenance plans can help by keeping service on schedule, improving efficiency, finding small problems early, and supporting longer equipment life. Stanley offers a membership plan with semi-annual visits.

Stanley Heating Cooling & Plumbing provides HVAC, air conditioning, heating, indoor air quality, water heater, and plumbing services for homeowners in the Dayton area. The team handles repairs, replacements, installations, maintenance, ductwork, humidifiers, air purifiers, mini splits, gas lines, kitchen plumbing, water filtration, and related home comfort needs.

Stanley Heating Cooling & Plumbing can answer all your HVAC and plumbing questions. Read answers to some of the most frequently asked questions we receive, and call us at 937-902-1874 to discuss your needs. We proudly serve Dayton, Kettering, Oakwood, OH, and the surrounding areas.