See Our Service Areas  
Search
See Our COVID-19 Safety Procedures
Your Home Should Feel Nice.

Glossary – Nice Heating & Air

AFUE

Annual Fuel Utilization Efficiency. Used to express the efficiency of gas furnaces. The higher the AFUE rating, the more efficient the unit.

Federal law has required that all new residential furnaces built after January 1992 operate with an AFUE of 78% or higher. All Rheem® furnaces are manufactured to exceed these requirements with a minimum AFUE of 80%.

If your furnace was built before 1992, chances are it is operating with an average efficiency of around 60%. Most of the heat is lost up the chimney or out the exhaust vent – devices used by older furnaces to expel dangerous fumes created by the furnace, such as carbon monoxide, carbon dioxide, aldehydes, and even soot.

Modern furnaces use more technologically advanced venting techniques to achieve greater energy efficiency. An important note: Be sure to ask your installing contractor if your chimney or exhaust vent is suitable for use with your new equipment.

AHRI

The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) is the trade association representing manufacturers of air conditioning, heating and commercial refrigeration equipment. AHRI’s 300+ member companies account for more than 90 percent of the residential and commercial air conditioning, space heating, water heating, and commercial refrigeration equipment manufactured and sold in North America. Rheem is an active member of AHRI.

BTU

Short for British Thermal Unit. The amount of heat required to raise or lower the temperature of one pound of water by one degree Fahrenheit.

BTUH

The heat transfer rate of HVAC equipment is measured in British Thermal Units per Hour.

CAPACITY

Usually measured in BTUs or tons, capacity refers to an air conditioning or heating unit’s ability to cool or heat a space. For instance, a 20-ton air conditioning unit has twice the capacity of a 10-ton unit.

CFM

A unit to express movement of volume, including air, in Cubic Feet per Minute. A 400 CFM air handler moves 400 cubic feet in one minute.

COMPRESSOR

The compressor plays an integral role in cooling your home. It is the device responsible for pumping refrigerant through the refrigerant lines and the coil, making the transfer of heat from inside your house to the outdoors possible.

Rheem uses high-quality compressors throughout its residential air conditioning and heat pump line for quiet, efficient, and trouble-free operation for many years to come.

CONDENSER

The coil responsible for dissipating heat to the surrounding, outside air. Also called the condenser coil, or outdoor coil, its role is reversed when a heat pump is used in heating mode.

CONTOUR COMFORT CONTROL™

The brain behind the most advanced furnace technology available today. Used in the Rheem Classic 90 Plus Modulating Gas Furnaces with Contour Comfort Control™, this breakthrough technology can keep temperatures throughout your house constant – as constant as one-half of one degree of your thermostat setting.

Conventional furnaces turn on and off when temperatures fall or climb to a pre-determined level, delivering warm air (usually much warmer that the air in the house), until the desired temperature is achieved, then turning off.

The Rheem Classic 90 Plus Modulating Gas Furnace is different. The fan speed and heat output are automatically and constantly varied. The result is that air flows from the registers at the precise temperature you select, for lower utility bills and greater comfort.

You can also use up to six optional remote sensors (mounted in closets or other strategic locations) to help the Contour Comfort Control™ system analyze temperatures throughout your home. The system then uses this information to direct furnace activity accordingly, effectively eliminating hotspots.

OP

The Coefficient of Performance rates a heat pump’s ability to efficiently use electricity in its operation. The Air Conditioning and Refrigeration Institute provides the Coefficient of Performance at 47 degrees Fahrenheit and 17 degrees Fahrenheit. This is because a heat pump is more efficient at higher, outside-air temperatures.

DB

The relative loudness of a sound is expressed in dB, short for decibel. As an example, the sound of a human voice talking is around 70 dB. (See also SRN.)

DOE

A federal agency, the Department of Energy, sets the standards for efficiency throughout the HVAC industry and monitors consumption of energy sources.

DOWNFLOW

A term used to describe the direction of airflow through a furnace. A downflow furnace takes return air from the top, heats it, and then delivers the warm air from the bottom.

DUCT/DUCTWORK/DUCTING

A central heating and air conditioning system uses many components to heat or cool air. This warm or cool air is then transferred to different registers throughout the house via special, flexible, large-diameter pipes or ducts. The system of ducts throughout your house is often referred to as ductwork or ducting.

EER

Energy Efficiency Ratio. The ratio of the cooling capacity of the air conditioner in BTUs per hour to the total electrical input in watts. This measure is determined by comparing test units to the Air Conditioning and Refrigeration Institute specifications.

EFFICIENCY

A general term used to describe how effectively a heat pump, air conditioning system, or furnace converts incoming energy to outgoing energy. The higher the number, the more efficient the unit, and the lower the operating costs.

EVAPORATOR COIL/EVAPORATOR

An integral part of the indoor unit of a heat pump or air conditioning system. So called because when warm air passes over a coil filled with liquid refrigerant, the refrigerant itself evaporates and absorbs some of the heat. This gas refrigerant is then pumped to the outdoor coil, where it releases heat into the surrounding air and returns to its liquid state.

HEAT EXCHANGER

Responsible for transferring heat from furnace burners to the blower. Rheem uses some of the finest heat exchangers in the industry with limited lifetime warranties on some models.

HORIZONTAL FLOW

A term used to describe the direction of airflow through a furnace. A horizontal flow furnace takes return air from one side, heats it, and then delivers the warm air from the other side.

HSPF

Heating Seasonal Performance Factor. It measures the efficiency of the heating portion of your heat pump. The Department of Energy minimum is 6.8. (Similar to SEER.)

HUMIDIFIER

Usually available as an optional accessory, a humidifier is used to inject water vapor into the dry, heated air expelled from a furnace/air handler. The benefits can be improved efficiency and a more comfortable living environment.

HVAC

Heating, Ventilating and Air Conditioning. Used to refer to the industry at large, particularly dealers of heating and air conditioning equipment.

INDOOR COILS

Split-system home comfort systems use two main components to deliver air for a comfortable living environment. The indoor coil is the device responsible for transferring heat from indoors to the outdoors (or the reverse in the case of a heat pump in heating mode). Most modern systems are designed to achieve maximum efficiency when the indoor unit (coils and blower) is properly matched with the outdoor unit (air conditioner or heat pump). For best results, be sure to replace both the indoor and outdoor units at the same time.

KILOWATT

A unit used to express 1,000 Watts. Denoted as “kW.” Note that the “W” in “kW” is always capitalized because the Watt unit was named after a person.

KWH

If a unit uses 1,000 Watts in 1 hour, it is said to have an energy rating of 1kWh.

MODULATING FURNACES

Furnaces are designed to deliver maximum heat for comfort on the coldest of days. In most cases, those days account for fewer than three percent of winter days. The rest of the time, your furnace is providing more heat than necessary.

Because conventional furnaces are either providing no heat, or at full capacity, the temperature in your house goes up and down by several degrees, adversely affecting your comfort and your energy bills.

Modulating furnaces solve this problem by varying the amount and temperature of air delivered between different capacities, so that the air flowing out of the registers is always at the temperature you determine. This results in lower operating costs, more comfortable temperatures throughout the house and quieter operation.

PACKAGE UNIT

Equipment in which all heating and cooling components are located in one cabinet. Installed either beside or on top of a home or business.

REFRIGERANT

The liquid used to absorb and transfer heat from one part of the home comfort system to another.

REFRIGERANT LINES

Copper lines used to transfer the refrigerant between the outdoor unit and the indoor unit.

SEER

Seasonal Energy Efficiency Rating. Used to express the efficiency of an air conditioning unit, or a heat pump in cooling mode. The higher the SEER rating, the more efficient the unit. The Department of Energy minimum is 13 SEER.

SPLIT SYSTEM

A home comfort system that uses an indoor and an outdoor component to deliver comfortable air to a living environment.

SRN

The Air Conditioning and Refrigeration Institute performs tests and assigns a Sound Rating Number (SRN) to units. A lower SRN rating indicates a quieter unit with average SRNs of between 74dB and 80dB..

THERMOSTAT

A temperature-measuring device used to control the operation of home comfort systems to maintain a comfortable temperature within the house. Programmable thermostats allow you to program different temperatures for different times of the day.

TON

The ton ratings you see here have nothing to do with the weight of the unit. In fact a ton is simply 12,000 BTUs (see BTU definition on this page). A typical home cooling/heating system uses heat pumps or air conditioners with a capacity of between 1.5 and 5 tons.

UPFLOW

A term used to describe the direction of airflow through a furnace. An upflow furnace takes return air from the bottom, heats it, and then delivers the warm air from the top.

WATT/WATTS

Electrical power also expressed as ‘W’. For example, a 100W globe consumes 100 Watts of electrical power. The W in Watt is always uppercased because it is named after a person.

ZONE/ZONING

A home may be divided into several different areas, or zones, to better control the temperatures throughout the house. The process of dividing your home into different zones is called zoning.

Emergency Service

Sidebar

Serving Springfield, VA &
the Surrounding Areas
See All
Why Choose NICE?
24 Hour Phone Availability
100% Satisfaction Guaranteed
Nice, Neat & Knowledgeable Technicians
On-Time Arrival
Angie’s List Award Winner – 7 Years Straight!
Join Our Cozy Club
Maintenance Plan!
It’s the NICEST way to gain comfort.

Customers With a NICE Experience

Customers With a NICE Experience

Carlos.

“Service was outstanding from the time of arrival which you could track arrival time live on a website link they send you so you know when they will arrive. Technical knowledge was very high, quick and efficient Kyle and his partner both handled the install of a Sensi Predict as if it was a walk in the park. I highly recommend Kyle from Nice Heating & Air for all HVAC issues and for new installs, him and his team are an amazing company and will think of them first if any issues arise in the future for sure....”

Andrew Baker.

“Professional and polite. Excellent communication throughout the maintenance visit. Definitely recommend.”

Khadeeja.

“Rolando Medrano was very professional and followed the CDC protocol of 6 feet social distance and had a mask and put disposable shoe covers before entering the house. He made sure to address all of our issues and provided answers for all our questions. He came on time and called before he came to update on timing and his status! He was a great help!”

Mike Richardson.

“Highly recommend Nice Home Services for your HVAC needs. Have been member of their annual maintenance plan for three years now and been extremely pleased with their approach to business. They are professional, knowledgeable, and relatable. The service specialists take their time to fully diagnose the issue and explain the situation in a way that is easy to understand. Never had an instance where they try to push product and instead look for ways to recommend how to save you money. Need anything done on your home's HVAC, call the folks at Nice Home Services and know you're making the right choice.”

Zora G.

“Love , Love the NICE Heating & Air company for their kind & trustworthy technicians, their unbeatable price & overall knowledge they’ve amazed me every time with their fabulous job on my house, I’ll recommend them without hesitations, try this company you won’t regret for sure.”

Richard Nowinski.

“Dionte and his helper (Josh) did a superb job with the installation. The result is both functional and as cosmetically pleasing as the ideal water heater installation can be. They were VERY careful moving the old one out and the new one in so as to assure no damage was initiated neither to the heater nor to our dwelling. He explained his intended design prior to execution and executed it flawlessly. This was followed by a comprehensive explanation of the functional options available through the control panel and Ipad app. Cleanup at conclusion of the install was appropriate and comprehensive. This team represented both Nice Heating and Rheem VERY positively!”

Kimberly Mason.

“I had the pleasure of meeting another NICE Heating and Air Service Technician today, Mr. Jeremy Castellon. Jeremy, thank you again for addressing my questions and concerns regarding my gas fireplace. I appreciate your patience and knowledgeability about gas fireplaces. Jeremy was very professional and competent.”

Terence Lartey.

“The technician was very professional and took his time to explain the issue and how he will about to fix it. He also offered means to save by signing on their maintenance program. He was polite, careful to keep the carpet clean. I will recommend this company to friends and family.”

Roberta Massiah.

“Loves me some NICE Home Services! I’ve been part of their maintenance plan for almost 9 years now & they're great. Reliable, professional, & friendly; they take care of all my HVAC & gas fireplace needs m, including a spring & fall tuneup. Highly recommend!”

Barb N.

“I purchased my HVAC unit a year ago along with a Cozy Club maintenance plan. It's been running great and the customer service team is always quick to respond to questions. Today Rolando M. came by for the maintenance check and, as usual, he was neat, professional and maintained the COVID rules. He was also very nice, living up to the company name. I'm very happy with my experience with Nice.”

N. England.

“I can't speak highly enough of this company. I requested an appointment, and it was scheduled for the next day. The technician was polite, honest, and a pure delight to work with. He didn't try to overcharge or tell me to replace something I didn't need to. He made service recommendations that were in line with industry standard prices so I could make an informed decision as he went about his service visit. Would recommend and will be using them again in the future. ”

Lucas W.

“My technician arrived promptly at our appointed hour. He repaired a dirty and non-working gas fireplace. In addition, he found a small gas leak on our furnace line. Overall, exceptional service and quality work. I highly recommend their HVAC service.”

Rona G.

“Very impressive company! Nice responded to my call for a heating issue on very short notice. My tech, was right on time, extremely polite, and very hardworking. Customer service and satisfaction are clearly a priority.”

Kenny D.

“They treat customers like a valuable asset, not like a number. Business the old-fashioned way, that will never go out of style.”

Lois S.

“Superb customer service. Before a service appointment, you receive a text message notification with photo of the tech that will be at your residence followed by a phone call. During a service appointment you'll updated and educated. If there is a concern, management will contact you promptly and follow up until issue resolved. Awesome and attentive team!!”