HVAC Terminology Guide for Homeowners in Birmingham AL

GAMA

The Gas Appliance Manufacturers Association (GAMA) was a trade organization representing manufacturers of gas-powered appliances, including furnaces, boilers, and water heaters. It provided standards, certifications, and support to ensure the safety, efficiency, and quality of gas appliances. In 2008, GAMA merged with other organizations to form the Air-Conditioning, Heating, and Refrigeration Institute (AHRI), which now...

Garage Heaters

Garage heaters are heating devices designed to provide warmth to garages or similar spaces, especially during colder months. They can be powered by natural gas, propane, or electricity, and are typically used to maintain a comfortable temperature in spaces that may not be connected to a central heating system. Some models, such as separated combustion...

Gas furnace heat exchanger

A component located within a gas furnace that is responsible for transferring heat generated by the combustion of fuel (such as natural gas or propane) to the air that circulates through your home. The heat exchanger keeps the combustion gases separate from the indoor air, ensuring that harmful byproducts like carbon monoxide do not enter...

Gas Furnaces

A gas furnace is a component of an HVAC system that burns natural gas or propane to produce heat. This heat is then transferred to the air, typically using a heat exchanger. A blower fan circulates the warmed air through the ductwork and into the living spaces in your home. Gas furnaces are commonly used...

Gas Package

A gas package unit is a type of "all-in-one" HVAC system that combines a gas furnace for heating and an electric air conditioner for cooling in a single outdoor cabinet. This system is typically installed outside your home, with the only indoor component being the thermostat. Gas package units save indoor space since there's no...

Gas Valve

A gas valve is a device used in HVAC systems to control the flow of natural gas or propane to equipment like furnaces, boilers, or water heaters. It is responsible for starting, stopping, or adjusting the amount of gas reaching the burner. This ensures the correct level of fuel is delivered for safe and efficient...

Gauge Pressure

Pressure measured relative to the surrounding atmospheric pressure. It is the difference between the absolute pressure of a system and the atmospheric pressure. If the gauge pressure is positive, the pressure in the system is higher than atmospheric pressure; if it is negative, the system pressure is below atmospheric pressure. Gauge pressure is commonly used...

Grid-Tie Inverter Solar System

A grid-tie inverter solar system is a type of solar power setup that connects directly to the electrical grid. It uses a special inverter to convert the direct current (DC) electricity produced by solar panels into alternating current (AC), which is the type of electricity used in homes and businesses. This system allows homeowners to...

Grille

A grille is a vent cover with openings designed to allow air to flow into or out of an HVAC duct system. It is typically fixed in place and serves as a protective barrier while also directing the airflow. Grilles are often located on walls, ceilings, or floors and do not usually include adjustable dampers...

GWP (Global Warming Potential)

GWP stands for Global Warming Potential, a scale used to measure how much heat a specific greenhouse gas traps in the atmosphere over a set period of time, typically 20, 100, or 500 years, compared to carbon dioxide (CO2). CO2 is used as the baseline with a GWP of 1. For example, a gas with...

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Karen

Johnathan was great! We had a moisture problem in our kitchen cabinets that were on an interior wall. He spent a good amount of time figuring out what was going on, gave us a solution and answered all of our questions. A very good experience!

Amanda Horsley

These guys did great work for us! Installed a new HVAC system at a competitive price, were very respectful in my home, neat, and incredibly helpful. All around just a great experience.

John Wright

The only company I'll use for HVAC. Jon and his team explain everything, do meticulous work, and clean up after the job is done. What more could you ask for? Thanks guys!

Pam Bennett

I can not say enough amazing things about my experience with Paradise - most importantly, about JONATHAN PERKINSON! He is super knowledgeable about any and all HVAC systems, and he answered all my questions - he actually went above and beyond my expectations. I am excited about this company bc I have tried SEVERAL in the Birmingham area - and I’m telling you - this is the company to use and Jonathan is the one specifically that I will be calling again and again!

Kellie L

I can not say enough great things about Jonathon and Paradise Heating and Air. From the moment they answered the phone I knew I made the right choice. This team is top notch! I called on Monday for attic insulation, Tuesday Jonathon came out and spent time showing me what I needed and Thursday the job is done! Clean, professional and treated me and my home like family. I will be using them for EVERYTHING they specialize in. You CAN NOT GO WRONG with this company! 1000% satisfied and never have been so happy to spend money on insulation 🥰.

Melanie Kettle

They scheduled me in a timely manner. The technician (Jonathan)was very professional, explained the system, and answered all my questions.

Steve

Always polite. They were at my house at 8:30 pm making sure we had cool air.

Hector Orozco

Pam Cain

Great, fast and professional service always!!

Peter Wald

Routine service plus setting changes plus education plus rec's for the future. Spent much more time than normal to satisfy my real needs.

Natalia Nagorneac

We were in dire situation last last summer when our AC system went off with no repair really feasible. We took some time to shop around despite of awful heat in the house. Johnatan from Paradise Heating and Air is honest, articulate, skillful professional. He offered the best value and cost, the easiest ways to pay, and great service plan. I would recommend everyone to contact Johnatan and Paradise Heating and Air for the AC service.

Charles Reynolds

Jonathon, as always, provided great service! He is very efficient and honest. Thanks Jonathon, Charles

Brian Motley

My unit for upstairs had a major leak in the evaporation coils. Jonathan and Matthew came over and spent an hour here investigating and giving me my options. I decided to replace the whole unit and they were here on a Saturday replacing the unit. The knowledge that Jonathan possessed was second to none. The experience was excellent I will be using them again and I highly recommend them.

Kevin

Thank you Paradise Heating and Air for your quick response, great customer service and fair price!

Steve S

I had paradise come out to get me started with their paradise maintenance package, and had them take a look at my attic because we had concerns with our insulation not being adequate. They didn’t try to over sell work I didn’t need, and were honest with what exactly was needed to get us back on track. Techs Jonathan and Matthew came out for the initial inspection and service and came back to do the attic insulation. They were patient and knowledgeable (I ask a lot of questions) and took their time. They found all the places that my system was leaking (out and in) air, fixed them, and then filled the attic. They kept the house clean and were respectful and had great attitudes the entire time. They have definitely earned my business, and I would recommend them to anyone looking for HVAC work. They are AWESOME!

J Harrell

lee lee

2025 UPDATE: I needed Jonathan service on Friday, April 3rd. I called his office at 6:40. Jonathan arrived at my home by 2 o’clock that afternoon. Got my unit back up and running in less than an hour. The team at Paradise heating and cooling. Always provide exceptional, customer service and expertise. As long as Jonathan is in business, I will continue to do business with him. "I was so impressed with Mr. Jonathan from Paradise Heating & Air! They were incredibly respectful of my home, even wearing shoe covers. They were punctual and kept me informed every step of the way. Mr. Jonathan took the time to explain the issue clearly and simply, without any confusing technical terms. They offered several options and let me decide what was best for me and my budget. I really appreciated that they didn't try to oversell me on something I didn't need. It's clear that Mr. Jonathan is knowledgeable and truly cares about their customers. I highly recommend Mr. Jonathan and Paradise Heating & Air to anyone looking for reliable and honest HVAC service. It's refreshing to find a company you can trust."

Linda Thompson

Jonathan and his helper were awesome. Keeping us informed as to what they were doing as they replaced our heating and air units. They were pleasant to have around and did a great job. They not only left the areas clean they hauled off all the old equipment. We would highly recommended them to everyone.

Martha Neighbors

Paradise Heating & Air was conscientious about scheduling and doing a thorough job in installation and servicing.

A.K. Powell

Scheduling was super easy and they were able to work me in quickly. Jonathan was so nice and explained things to me in a way I understood. They were also very quick but thorough

Pat Turner

If only all of our consumer needs were met like the service provided by the team at Paradise Heating and Air. From the very cordial and helpful Paradise employee who answered our after-hours, weekend phone call to the technical service provided by Jonathan and Matthew on Monday - we couldn’t be more pleased. We were informed every step of the way via text of all pertinent information including: scheduled appointment time, tech arrival time with the id’s of technicians who would be performing the work. Jonathan and Matthew arrived five minutes earlier than the one hour scheduled window (no no-shows here), did what they had to do and didn’t use weaponry to determine labor costs. In a land where customers have seemingly been disregarded and led to die, the folks of Paradise have obviously seen themselves and decided to do things a different and better way.

Deborah Atchison

Had what I thought was an issue with my furnace at MIDNIGHT and was in a panic trying to decipher what I thought was an error code. Called numerous places advertising 24/7 assistance and no one could/would help. Jonathan Perkinson with Paradise actually called me back, explained it all to me and kept me from shutting it all down on a cold night. So kind and helpful!!! Highly recommended!

M Sewall

Paradise was very responsive and was able to come same day. Very professional, nice and honest - would recommend to anyone!

Brian L

Love their service. They are very prompt and courteous. They get any issues resolved immediately and are amazing to work with!

Marianne Herman

Exactly what I needed!

DIONDRA ROBINSON

If you are having any HVAC issues please do not hesitate to call Paradise Heating and Air. Mr. Jonathan and his team were quick and provided answers to all my questions. I appreciate how quick they came out and fixed my issue being that we have had some extremely hot temperatures lately. I look forward to working with them in the future. I will be recommending them to anyone who has an issue. Thanks again to Paradise Heating and Air.

Melanie Authement

Honest and kind. Gave incredible price for work completed. Called and was able to come earlier than expected! Cannot recommend enough

Kofi Creme

My unit was not working and they were working with my relatives. I asked if they would take a look at mine and they did with no problem. They told me what the problem was an within 2 days they had my unit up and running!

akash ahmed

Good service.

Audray Jones

First of all they are very courteous people. Secondly they gave me an appointment asap and was there right on time in which I was able to keep track of the arrival by text messages. They diagnosed the problem and it was resolved in less than 30mins. I am truly grateful for Paradise Heating and Air. Thank you for your service. Side note: they chose the best name for the company. I was in Paradise after the repair lol

Erica Harris

Highly recommend Jonathan and Matthew. They were able to come same day when my air stopped blowing cool air none other than the first week of consistent upper 80s weather. They were on time and from the brief description I shared over the phone they knew right where to start. They had the part that needed to be replaced and I had cool air flowing in less than an hour! Thanks guys will use you again.

Nae Nae

I’ve used them several times now and they are always quick to respond, very polite and honest. I would highly recommend them.

Joshua Woodall

Jonathan provided excellent service and was extremely knowledgeable. He had our heat up and going in no time and also helped us with setting up functions on our thermostat while he was here!

Dana Gaudet

I recently had this company come out to my home because my unit wasn’t working, they had someone out the same day. Jonathan was extremely professional and knowledgeable, definitely recommend this company!!

Amy Graham

Jonathan was highly recommended and came by to look at a situation I had. He spent time looking all over my attic and my system. Had recommendation, seemed knowledgeable about my problem. Very courteous!

Robert Dasenbrock

Monti Pres

Wonderful

Dwight McPeak

Quick response for broken AC. Found the problem quickly and was able to fix on the same visit. They also recommended some improvements based on another issue I was having. Overall great experience.

Nancy Hollaway

Our AC was struggling a bit. Had another HVCA company come check it out first. Their recommendation was a whole new replacement unit. Bare minimum a $6000 repair job. Got a second opinion from Jonathan’s company, Paradise. All the unit needed was refrigerant. Saved us thousands !! We would recommend Paradise every day of the week and twice on Sunday.

Katherine Marshall

Extremely nice, on time, helpful and explanatory. Very professional. Thank you

Kyle & Joanna Baker

Jonathan was fantastic to work with! We had multiple quotes and opinions on some work we needed to get done and his recommendations and quote came in best and he had some recommendations others did not make that make us feel like he really cared about doing the right thing and really inspected our hvac situation. Jennifer and Gracie were also stellar! Will call them back and recommend to our friends!

James Coco

Jonathan to the rescue! A quick response saved us from a miserable night. Jonathan had us fixed in a matter of minutes! Highly recommend!

Andrea Martin

5 stars! Look nowhere else for all of heating and cooling needs. Jonathan is amazing - experienced, reasonable and reliable. Look nowhere else!

Daniel Maddox

Jonathan and the guys did a fast and efficient job fixing our ac. Always a worry when it goes out at the start of summer in Alabama. I highly recommend paradise heating and air to fix your ac problem. Communicated arrival time, explained the issue thoroughly, also didn't break the bank! Thanks again paradise!

Mary Cavett

Jonathan was great - AC suddenly went out and he was able to get over in 30 min and get it working again! Very knowledgeable and nice!

Ashley Ponter

We were very pleased with the service we received! The men were knowledgeable, honest, and timely. We would HIGHLY recommend this service!

Sandy Hicks

Being a first time customer I was extremely impressed with how punctual and professional the technicians are. I highly recommend Paradise Heating and Air

John DiOrio

Jon and his team have renewed my faith in the HVAC industry. They service two homes with aging Heating & Cooling systems, and they've gone above & beyond in both cases. From surveying the attics for proper insulation, to accessing the basements and crawl space for any issues that might need to be addressed, I'm confident I'm in good hands with Paradise Heating & Air.

Robby Brumberg

glophers hicks

Jonathan was very professional and knowledgeable, with a great personality. I will be doing business in the future with his company. I immediately signed up with the company’s annual service plan.

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