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AFUE

Annual Fuel Utilization Efficiency. Indicated as a percentage, your furnace’s AFUE tells you how much energy is being converted to heat. For example, an AFUE of 90 means that 90% of the fuel is being used to warm your home, while the other 10% escapes as exhaust with the combustion gases.

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ADVANCED RECIPROCATING COMPRESSOR

Type of compressor that uses a more efficient process for compressing refrigerant for better cooling efficiency

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AIR HANDLER

The portion of your air conditioner or heating system that forces air through your home’s ductwork.

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BTU

British Thermal Unit. Used for both heating and cooling, BTU is a measure of the heat given off when fuel is combusted. Or for cooling, it’s a measure of heat extracted from your home. (One BTU is approximately equal to the heat given off by a wooden kitchen match.)

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BTUH

A British Thermal Unit (BTU) is the unit of heat required to raise 1 pound of water by 1 degree Fahrenheit. BTUH is British Thermal Units per Hour.

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BECKETT BURNER

A burner assembly within your oil furnace. This burner provides good combustion of heating oil.

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CFM

Stands for Cubic Feet per Minute. A measurement of airflow that indicates how many cubic feet of air pass by a stationary point in one minute. The higher the number, the more air is being forced through the system.

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CAPACITY

The ability of a heating or cooling system to heat or cool a given amount of space. For heating, this is usually expressed in BTUs. For cooling, it is usually given in tons.

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CARBON MONOXIDE

A colorless, odorless, highly poisonous gas produced when carbon-based fuels, such as natural gas, burns without sufficient air nearby.

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COMPRESSOR

Part of a split-system heat pump or air conditioner’s outdoor unit that controls the pressure applied to the refrigerant, necessary for taking in heat to warm your home with a heat pump or getting rid of heat to keep your home cool.

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CONDENSER COIL

Part of the outdoor portion of a split-system air conditioner or heat pump. By converting refrigerant that is in a gas form back to a liquid, the coil sends heat carried by the refrigerant to the outside.

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DB

Decibels (dB) are a unit measuring the intensity of noise.

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DAMPER

A type of “valve” used in duct work that opens or closes to control airflow. Used in zoning to control the amount of warm or cool air entering certain areas of your home.

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DOWNFLOW

A type of furnace that takes cool air from the top and blows warm air to the bottom-commonly used where furnaces must be located in a second-floor closet or utility area.

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DUCTWORK

Hollow pipes used to transfer air from the Air Handler to the air vents throughout your home. Ductwork is one of the most important components of a home heating and cooling system.

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EER

Energy Efficiency Ratings (EER) measure the efficiency with which a product uses energy to function. It is calcuated by dividing a product’s BTU output by its wattage.

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ELECTRONIC AIR CLEANER (EAC)

An electronic device that filters out large particles and contaminants in indoor air. It then electronically pulls out tiny particles that have been magnetized, such as viruses and bacteria, drawing them to a collector plate.

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ENERGY SAVER SWITCH

An energy-saver switch causes the air conditioner’s fan and compressor to cycle on and off together, reducing energy use.

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ENERGY STAR

Energy Star is a government-backed program helping businesses and individuals protect the environment through superior energy efficiency. Products with the Energy Star rating will be efficient and save cost on energy bills.

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EVAPORATOR COIL

Part of a split-system air conditioner or heat pump located indoors. The evaporator coil cools and dehumidifies the air by converting liquid refrigerant into a gas (or vice-versa). A blower moter, typically in a furnace, then moves air over the coil to either heat or cool your home.

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FAN COIL

An indoor component of an air conditioner or heat pump system, used in place of a furnace and evaporator coil, to provide change the refrigerant from a gas to a liquid (or vice-versa) and blow air over the coil to cool or heat your home.

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HSPF

The Heating Seasonal Performance Factor is a measure of the heating efficiency of a heat pump. The higher the HSPF number, the more efficiently the heat pump heats your home.

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HVAC

Term used for Heating, Ventilation, and Air Conditioning

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HEAT EXCHANGER

The part of a furnace that transfers heat to nearby air.

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HEAT PUMP

A product that works just like an air conditioner in cooling mode; however, in heating mode, the refrigerant flow is reversed and heat is extrated from the outside air too heat your home.

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HORIZONTAL FLOW

A type of furnace, installed on its “side”, that draws in air from one side, heats it and sends the warm air out the other side. Most often used for installations in attics or crawl spaces

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HUMIDIFIER

A piece of equipment that adds water vapor to heated air as it moves out of the furnace. This adds necessary moisture to protect your furnishings and reduce static electricity.

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HYBRID HEAT

Hybrid Heat systems deliver exceptional performance by using a heating source that provides the most energy-efficient comfort during moderate heating conditions.

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INDOOR COIL

see Evaporator Coil

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LOAD ESTIMATE

A series of studies performed to determine the heating or cooling requirements of your home. An energy load analysis uses information such as the square footage of your home, window or door areas, insulation quality and local climate to determine the heating and cooling capacity needed by your furnace, heat pump or air conditioner. When referring to heating, this is often known as a Heat Loss Analysis, since a home’s heating requirements are determined by the amount of heat lost through the roof, entry ways and walls.

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LOW BOY

Low Boy is a type of furnace configuration in which the furnace is lower in height and occupies more floor space.

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MERV

The Minimum Efficiency Reporting Value is the standard comparison of the efficiency of an air filter. The MERV scale ranges from 1 (least efficient) to 16 (most efficient), and measures a filter’s ability remove particles from 3 to 10 microns in size.

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MATCHED SYSTEM

A heating and cooling system comprised of products that have been certified to perform at promised comfort and efficiency levels when used together, and used according to design and engineering specifications.

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NON-THERMAL PLASMA (COLD PLASMA)

Plasma in its simplest form is oppositely charged hydrogen and oxygen ions, also called bi-polar ionization. These naturally occurring ions are artificially produced when a sufficiently high voltage is applied to a sharp point. The plasma, when produced and injected into a moving air stream, breaks down gases to harmless compounds prevalent in the atmosphere such as oxygen, nitrogen, water vapor and carbon dioxide.

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OPERATING COST

The day-to-day cost of running your home comfort equipment, based on energy use.

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OUTDOOR COIL

see Condenser Coil

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PAYBACK ANALYSIS

Overall measure of the efficiency and value of your home comfort system. By combining your purchase price and ongoing operating costs, a payback analysis determines the number of years required before monthly energy savings offset the purchase price.

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PURON REFRIGERANT

Puron® Refrigerant is an environmentally sound refrigerant designed not to harm the earth’s ozone layer. Federal law requires that all manufacturers phase out ozone depleting refrigerants in the next few years. Puron Refrigerant is approved by the US Environmental Protection Agency as a replacement from Freon 22*.

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QUIETECH

QuieTech™ is a noise reduction system that provides comfortable heat while generating very little noise in the process.

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R-22 REFRIGERANT

R-22 is a single component HCFC refrigerant with low ozone depletion potential. It has long been used in a variety of air-conditioning and refrigeration applications in a variety of markets. Production of R-22 will cease in 2015 per the Montreal Protocol.

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RECIPROCATING COMPRESSOR

A type of compressor used in air conditioners that compresses refrigerant by using a type of “piston” action.

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RECLAIMING

Returning used refrigerant to the manufacturer for disposal or reuse.

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RECYCLING

Removing, cleaning and reusing refrigerant.

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REFRIGERANT LINES

Two copper lines that connect the Condenser (Outdoor) Coil to the Evaporator (Indoor) Coil.

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RIELLO BURNER

A burner assembly within your oil furnace. This burner provides a cleaner, higher quality combustion of heating oil to increase energy efficiency.

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SEER

The Seasonal Energy Efficiency Ratio is a measure of the cooling efficiency of your air conditioner or heat pump. The higher the SEER number, the more efficient the system is at converting electricity into cooling power.

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SCROLL COMPRESSOR

A specially designed compressor that works in a circular motion vs. an up and down piston action.

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SETBACK THERMOSTAT

A state-of-the-art electronic thermostat with a built-in memory that can be programmed for different temperature settings at different times of the day.

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SINGLE PACKAGE PRODUCT

One outdoor unit that contains both a heating and a cooling system.

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SMARTRECOVERY

Smart Recovery starts the system in advance to be sure that each zone reaches your selected temperature setting at the scheduled time.

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SPLIT SYSTEM

Refers to an air conditioner or heat pump that has components in two locations. Usually, one part of the system is located inside (evaporator coil) and the other is located outside your home (condenser coil).

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THERMIDISTAT

The Thermidistat™ Control monitors temperatures both inside and outside, as well as indoor humidity and adjusts system operation to maintain the temperature and humidity levels set by the homeowner.

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THERMOSTAT

Unit that monitors and controls your HVAC system products.

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THERMOSTATIC EXPANSION VALVE

A thermostatic expansion valve (TXV) is precision device used to meter the flow of liquid refrigerant entering the evaporator at a rate that matches the amount of refrigerant being boiled off in the evaporator.

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TON

A unit of measure for cooling capacity. One ton = 12,000 BTUs per hour.

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TOTAL HOME COMFORT SYSTEM

The ultimate solution to providing you with consistent, customized home comfort, despite the ever-changing weather.

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TRUESENSE DIRTY FILTER DETECTION

TrueSense™ dirty filter detection reminds you when it’s time to change your media filter.

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TWO STAGE COMPRESSOR

Two Stage Compressors are capable of two levels of operation, a low stage and a high stage. Properly sized equipment will operate 80% of the time in low stage, enhancing efficiency and comfort with lower humidity levels and quieter operation. It’s like getting two air conditioners or heat pumps in one system.

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UL

UL is an objective, non-profit organization that tests and rates electrical products for public safety.

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UPFLOW

A type of furnace that draws cool air from the bottom and blows the warmed air out the top into the duct work. This type of furnace is usually installed in a basement or an out-of-the-way closet.

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VENTILATOR

A ventilator captures heating or cooling energy from stale indoor air and transfers it to fresh incoming air.

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ZONING

A way to increase your home comfort and energy efficiency by controlling when and where heating and cooling occurs in a home. Programmable thermostats are used to control operating times of the equipment. Dampers are used to direct air flow to certain parts or “zones” of the home.

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Steve Carodiskey
Steve Carodiskey
1716750558
Ryan did an awesome job…Had it working in less than 30 mins would highly recommend Top Flight.5 stars
Daniel Callahan (DTCallahan)
Daniel Callahan (DTCallahan)
1716654358
UPDATE: Tyler was just out to service our AC for the first time. Just like Ryan he took the time to explain everything he was going to do and answered all of my questions.As a new customer and and not having a gas furnace prior, Ryan took the time to explain what he was doing and how the system worked. He was very knowledgeable and professional.I would have no problem recommending Top Flight to any of my neighbors.
james shockley
james shockley
1716576053
Top notch very cordial very politeIsaiah was great
p “Patricia” weath1
p “Patricia” weath1
1715288538
Isaiah Barnes was Professional, Knowledgeable & Kind. Joe, Isaiah's assistant is also of great character. I trust both of these folks completely. So grateful to have found Top Flight. They will continue to have my business as long as I am in the area.
Courtney Dulin
Courtney Dulin
1715266530
Joan Hitchens
Joan Hitchens
1714691185
Very Satisfied. Great Service.
J Ga
J Ga
1714055744
Tyler P. did our A/C Maintenance Service today. He was very pleasant to deal with, pointed out and took care of better insulating the refrigerant lines on inside unit & outside as well. Worked quickly and efficiently. Thanks again Tyler.
Carol Cunneen
Carol Cunneen
1713900983
Tyler arrived on time and did a thorough examination of the system. He was polite, professional and pleasant. He explained to me everything about the system I highly recommend this service.
val pisacane
val pisacane
1713898427
Tyler from TopFlight was fantastic. He earned a new service subscription customer.A prior tech from Air Temp solutions left the previously working system disabled and not working. Their follow up tech quoted $1,250 for a new thermostat and thermostatic board. Needless to say I searched for another company.Tyler diagnosed a simple but easily overlooked problem. The system was restored with only a service call.Big call out to Tyler and Top Flight!
Donna McCafferty
Donna McCafferty
1713795774
Issac did a great job. Very professional and courteous. He explained the process well and looking forward to installation of new system for our pole barn.
Susan McKechnie
Susan McKechnie
1713285687
Isaiah was my technician who performed a routine AC checkup. He was professional, knowledgeable, and polite. I was impressed with the service so I signed up for the annual plan and have high expectations if I ever run into any issues. Top flight was recommended by a friend who had issues and used several companies that couldn’t fix the problem before finding Topflight that did fix the problem.
Ben McCall
Ben McCall
1712938934
Very knowlagable team, and prompt service. They got me fixed up on their first visit.
Martin Burton
Martin Burton
1712270623
On April 4th 2024. We had a great experience with Top Flight Heating & Air. Our technicians Isaiah Barnes and Joseph arrived on time. Isaiah took the time explaining every detail of the job. Very professional. We highly recommend this company.
George Dellinger
George Dellinger
1711997698
Glad we switched Top Flight for our geothermal HVAC maintenance.They have a smooth process to set and confirm appointments. Isaiah (the technician) arrived exactly on time. He is exceptionally well-trained, confident, highly proficient, professional, and easy to communicate with.I feel that our HVAC will be in good hands with theTop Flight competitively-priced maintenance program.
Maria Maksymowych
Maria Maksymowych
1711831495
Shout out to Top Flight! I had an emergency call and had to turn my heater off. Technicians arrived the next morning. Service, honesty and technical competency exceeded expectation. Thank you.
Chris Derchin
Chris Derchin
1711052233
First service by Isaiah was outstanding, he took time to explain what he was going to service before & after he was finished. I was promptly contacted next day by Christian to set up follow up Appt. Now I understand why they have 5 stars on the Google reviews.
Tracy Niedrowski
Tracy Niedrowski
1711050611
We had Top Flight install a new HVAC system. Isaiah and Tyler were great at the installation. They cleaned up after the job which was nice. The plus is the system is nice and quiet compared to our old system and the balancing they did reduced the temperature extremes in our upstairs vs downstairs.
Tammy Crumley
Tammy Crumley
1710295184
Wonderful person. Handled my problem professionally.
Michael Davis
Michael Davis
1710268193
Dean Snyder
Dean Snyder
1710267701
Very professional and explained everything. I love the fact that they gave me different quotes and I did not feel like they were just trying to get money from me. Our house is only 4 years old and have had nothing but problems with the company that put the system in the house. I FINALLY have peace of mind knowing it was done right. I also really liked the yearly maintenance contract and it was not a crazy amout of money. Thank you for your trained technicians.
D GH
D GH
1708621202
Isaiah & his helper did an extraordinary thorough job and explained the issues and repairs as he did them . 5,star Quality and efficiency! Thank you!!
Jeff Bender
Jeff Bender
1707915099
Punctual, knowledgeable, friendly and reasonable prices.
Janet Brennan
Janet Brennan
1706372415
The other day, when temperatures were in the teens, I woke up to 54 degrees in my house. I went on line to look up HVAC services and saw that Top Flight had many excellent reviews. So I called them. A couple of hours later, Isaiah and Tyler came to my house. I have to say that it was one of the best experiences, if not the best, that I have ever had with a contractor or service person. They were here all day. Isaiah explained everything to me in detail and encouraged me to ask questions. He was so patient and so nice. Of course, they fixed the problem and gave me some good advice. He was very professional but easy going and well-informed. Also, the prices are very reasonable. I highly recommend this company.
Diane Acker
Diane Acker
1706287685
The Top Flight team was very professional, I highly recommend this company for all your heating needs.
Wanda Steen
Wanda Steen
1706191059
We were going through a total nightmare trying to find a company to fix our HVAC system. We tried 3 different companies that took our money and left us with a system that would stop working within a month after they said it was fixed. Top flight found the problem the 1st time they looked at it. It's now been running for almost a year with no problems. Isiah and this company are the best. We highly recommend them. Thank you Top Flight.
George Unkle
George Unkle
1706185802
Professional, on time, very knowledgable, efficient, understanding of urgency to get my furnace uo and running
Kat Scarpato
Kat Scarpato
1705093940
Keith Jacobi
Keith Jacobi
1704931602
Excellent service. Very professional and extremely knowledgeable.
Donald Bucklin
Donald Bucklin
1704929040
Very professional. Reasonably priced. Great all around experience. Very highly recommended.
Bob Russell
Bob Russell
1704828374
As new customers with Top Flight, we were visited by Ryan for an initial system inspection and a review of the various customer programs that Top Flight offered.While Ryan's extensive experience and knowledge of our HVAC system were clearly evident, his ability to explain and demonstrate issues or items in normal, understandable ways impressed us the most as a new customer.Top Flight's office staff has been equally helpful. Christina, in particular, has been exceptionally helpful with all our new customer setups and arrangements.We highly recommend that Top Flight be included in anyone's short-list of an Honest and Polite Customer-Focused service from a well-established local firm.
Willie Nelson
Willie Nelson
1704465976
Isiah and Tyler were out to service our furnace yesterday. Very knowledgeable and personable technicians. They explain the service they did and the service contract very well. It was a please having these fellows out for servicing our furnace.
Rox King
Rox King
1704459736
Isaiah was professional and courteous. Took time to explain things.
Melissa Stone
Melissa Stone
1704330719
Average. (I don't give extra stars to companies who demonstrate basic professionalism in being on time or having reasonable customer service). This company is VERY EXPENSIVE! They offer a discount to customers to "become members," which makes their service (which includes way more service than I want or need) appear cheaper by charging smaller monthly payments which add up to much more over a year than others charge for 2 annual maintenance checks. ($420/year for an 1800 sf house, compared to $180/year for the same sized house in Maryland.) This monthly payment plan makes it very difficult to track what service is already paid for and what is being prepaid. Thus they have pioneered a way to keep their hand in your wallet for months after the service has already been provided. No thanks. I don't buy it. They did allow me to cancel -which is apparently unusual for them- although they did not provide a refund for payments I made already for service that I won't get.
Mike Davison
Mike Davison
1703345015
What can I say.....BEST HVAC COMPANY EVER! Since moving to this area I have be unable to find a company to actually listen to me and do proper work. Upon a recommendation from a friend I tried this company out and I was not disappointed. Ryan was extremely professional in diagnosing and fixing my issue. He made the whole process easy and as painless as possible. He gave me many options on new systems and even informed me on state and federal rebates in our area. Isaiah is an excellent technician who loves this work and really did an amazing job. He is also by far the most polite server provider I've ever had in my house period. Taylor rounded out this trio and made this an amazing experience. I'd recommend this company to anyone who doesn't want to be pressured by pushy sales people, "know it all" technicians, and "I know better than you" owners.
kimberly mery
kimberly mery
1703192400
Had another company come out said I need a new unit. Called Top Flight for a 2nd opinion.. from the customer service on the phone and Ryan who came out I can say I cried... honest reliable friendly and caring. Ryan fixed the issue and I couldn't be happier. Definitely got a customer for life. Thank you Thank you Thank you. A million stars if I could. 😁
Glenn Williams
Glenn Williams
1703188664
Excellent service
duran yanez
duran yanez
1703170445
Top Flight completed my project yesterday and did a wonderful job. They kept clear lines of communication along the way, and the price I was quoted is what I paid. When it came to the day of installation, Isaiah and his crew were on time, polite, and came ready to work. It was a two day install and they got the job done.
Dennis Taylor
Dennis Taylor
1702651510
Isaiah Barnes is an excellent technician. He explained everything he did and was friendly and thorough. I would highly recommend him.
Joan Karasinski
Joan Karasinski
1702576176
Ryan from Top Flight is Terrific!He is a TRUE PROFESSIONAL!!We have been a customer for years and highly recommend Top Flight.THANK YOU!Joan and Tom
W hoop
W hoop
1702499536
One of the only companies in the county you can trust to do a honest job in the hvac industry. I had three companies out to try and fix my issue and they either failed to diagnose it properly or lied and said it was an expensive repair in order to upsell a brand new unit. Isaiah quickly identified a bare wire shorting out against a copper pipe in the fan unit and fixed it charging me the proper amount for the service . He is a young smart and determined technician, but most of all he is honest.
Ron Marra
Ron Marra
1702219848
This company is great and has great reviews i haven't had any problems with them however 1 very big tip do not deal with these company's that have no reviews because they have so many bad reviews that they won't list any at all i got ripped off twice by these company's that come in an hour and so on, so i stuck with this company and very satisfied.
Susan J. Martin
Susan J. Martin
1701888476
Very satisfied! Will not use anyone else!!!!if I could do 10 stars, I would!!!!!!
Rob Vogl
Rob Vogl
1701711344
In a nutshell, this company is fantastic!If you're still reading I'm going to elaborate on just why that is. We opened a new small business here in Lewes, DE and when we went seeking a local company to take care of our system they came highly recommended. Ryan reached out to me directly on Facebook to introduce himself and the team. Vey quickly he set me up with Taylor who got the ball rolling. She listened to what we were looking for and sent Mike out to have a look. He was professional and knowledgable in his diagnosis of our newly installed system. For no charge they told me what needed to be repaired and we set a day to do so. Mike and Josh came back (sooner than the appointment time I might add) and did a thorough job gettin our system up and running. Ryan and I talked again about the work and he gave us a very fair price.I am now a subscribing customer and intend to be so long as we are doing business here. I have nothing but great things to say about the entire experience and strongly recommend this team to any business in the state!
Zach O'Hagan
Zach O'Hagan
1701371319
Ryan and team were a pleasure to work with. Techs Isaiah and Taylor showed up for both legs of the install and were timely, courteous, and informative. They left crucial next steps for myself as a customer on system care going forward and insisted I call if I run into any issues. Definitely satisfied with the level of service provided by Top Flight and would recommend to anyone looking for a quality experience!
Kelly Guenther
Kelly Guenther
1701301675
Top Flight was very responsive and Issiah was extremely helpful and knowledgeable. I highly recommend this company.
Deborah Hunt
Deborah Hunt
1701213841
Ryan was very pleasant and got the heater running in no time. Very pleased.
Howard Brenner
Howard Brenner
1701193187
Ryan and Topflight did a great job for us. From analyzing the problem to fixing it. Everything was Top Notch.
Debra Saltz
Debra Saltz
1699624283
Fantastic customer service. Very professional. I would highly recommend this company.
James Fiedor
James Fiedor
1699546434
Isaiah was excellent, let me know he was coming, had a picture of himself in the text. He was very professional and friendly, and explained everything he was doing. Top quality representative for Top Flight, Thank You!!
Tyler Sherman
Tyler Sherman
1699491085
Spoke with Taylor from top flight to schedule our maintenance and air scrubber install. Both her and Ryan were very professional upon scheduling. Our technician, Isaiah Barnes promptly showed up on time, was very courteous and professional. Assisting with all questions I had during the visit. Going out of his way to help ensure all of my concerns were addressed during the visit. I highly recommend Top flight all around for their excellent service.
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