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HVAC Financing Birmingham AL
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(205) 326-7268
Paradise Heating and Air | HVAC Birmingham Alabama

HVAC Financing Available | HVAC Repair Birmingham AL

Refrigerant lines

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Copper pipes that connect the outdoor condenser unit to the indoor evaporator coil in an HVAC system. These lines consist of two separate pipes: a larger one called the suction line, which carries low-pressure refrigerant gas back to the outdoor unit, and a smaller one called the liquid line, which carries high-pressure liquid refrigerant to the indoor coil. Together, these lines enable the transfer of heat, allowing the system to cool or heat your home effectively.

Related Articles:
  • Glossary: Gauge Pressure
  • Glossary: Leak Detector
  • Glossary: Nitrogen
  • Glossary: Orifice
  • Glossary: PSIG
« Back to Glossary Index

© 2026 HVAC Birmingham, AL | Paradise Heating and Air | Website and Marketing by Cahaba Digital | AL License 22158

Brian Motley
Brian Motley

just left us a 5 star review

on
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7 months ago  
Brian Motley
google
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.

Eddie Dawson
google
Eddie Dawson

Fast on time & courteous

Amy Graham
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Amy Graham

Has spring service. Right on time, got it in good shape. Professional. Highly recommend!

Cynthia Belyeu
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Cynthia Belyeu

We have had Jonathan and his capable team working on our A/c and Heating for several years. They are punctual, well mannered and reasonably priced. The work they have done including an A/C replacement has always been outstanding. Plus, we have appreciated their problem solving skills in helping our remaining old units get along from year to year. We are so grateful to have them a phone call away!

Kevin
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Kevin

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

Dana Gaudet
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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!!

glophers hicks
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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.

Kerry Coleman
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Kerry Coleman

Jonathan was nothing more than stellar. Very engaging as well as very knowledgeable at his profession. I would highly recommend to anyone looking for HVAC services.

Lauren E Means
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Lauren E Means

Paradise Heating and Air was great to work with—professional, on time, and very thorough. They communicated clearly throughout the entire process and were upfront about pricing and exactly what they discovered was wrong. I’m very pleased with their service and will definitely use them again. Being on time was a huge plus as well!

Amanda Horsley
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Amanda Horsley

I had to leave another review for this company because we continue to be very impressed. Jonathan is an absolute pleasure to work with.

D. C. Smith
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D. C. Smith

Replaced a furnace vent pipe and roof cap, Jonathan and Matt were competent technicians and explained everything to me clearly and the quote and the final price were the same. comparing quotes, they were very competitive and provided a high degree of professionalism on the job. Thank you very much.!

Donna Butler
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Donna Butler

On time. Responsive. Seemed confident with expertise. Explained issues well. Serviced and repaired older ac system and did not try to sell me a new one. Kept everyone cool for Mothers Day.

Rex Murphy
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Rex Murphy

Excellent service, on a Sunday, highly recommend :)

Sandy Hicks
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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 Wills
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John Wills

Great company to work with AGAIN! The minor issues found were carefully explained and resolved. We setup a biannual service plan to keep this 20 yr old house in tip top shape. This is the company you need to handle your HVAC needs.

Mary Cavett
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Mary Cavett

Paradise has become our go-to HVAC company. We have used them for several smaller repairs and they always provides a reasonable price and didn’t try to upsell replacing our 30 year old unit before we were ready. Then, when we were finally ready to replace our unit we got quotes from Paradise and several other companies. Paradise was by far the best value not only in terms of price but also unit brand and warranty. We even ran all of the quotes through AI and his came in 1st in terms of value, price and ROI! Great company overall - can always trust them to provide great, high quality work and reasonable prices.

Katherine Marshall
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Katherine Marshall

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

Ruthie McNeil
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Ruthie McNeil

I was fortunately able to get an appointment for the next day. Jonathan & Austin were prompt and kept me advised of their arrival. They quickly found the problem with my "heat" and were able to fix it without problems. They were very friendly and professional, and I felt that their pricing was fair and reasonable. Thanks again, Guys! UPDATE: I once again had a very good visit from Paradise Heating & Air - they are very prompt and reliable and do an efficient job - thanks once again! I definitely recommend these nice guys!!!

Steve S
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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!

Christopher Lee
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Christopher Lee

Jonathan was very knowledgeable and friendly. Appreciated his candor and non-salesy guidance. We will be using them again.

M Sewall
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M Sewall

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

john DiOrio
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john DiOrio

Jonathan and the Paradise team are the best. In my 50 yrs of home ownership, I haven't had anyone I've trusted more. My wife and I downsized recently, and Jonathan helped us upgrade old to new heating & air units, including thermostats and attic insulation. Paradise Heating & Air is a great company... glad we found them years ago.

Monti Pres
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Monti Pres

Wonderful

Tom Brady
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Tom Brady

Paradise Heating and Air are the BEST in the area! They’re very responsive and adapted quickly to our needs. Highly Recommend!!

Mark Hamblen
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Mark Hamblen

Did a very thorough job of servicing my system. Will use again.

J. Chapman
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J. Chapman

Jonathan was great to work with. He came within a couple of hours after I called at around 4pm. and had us operational around 12 the next day (because he didn’t have a motor for my condensor and had to get one the next day). Will definitely use him again.

Karen
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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!

Jessica Ahrabli
google
Jessica Ahrabli

Johnathan and his son were excellent in installing a new hvac system in our home we had to have redone. They also fixed our upstairs unit and blew new insulation in our attic. They kept our home cleaned up as well. Great communication, very prompt and super friendly. We are so happy we found them!

Michael Robinson
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Michael Robinson

Jonathon and Christian did an excellent job! We would recommend them highly!

Christine Wilcox
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Christine Wilcox

They were great. Came out on a Thursday and looked at my system. Went over all of my options of repairs or replacements. Explained both the advantages and disadvantages of both options in detail so I could make an informed decision. Came back out the following Monday to do the work. Very friendly and knowledgeable staff.

Brian L
google
Brian L

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

Ken Little
google
Ken Little

Awesome Work! Great Experience with Jonathan and Paradise Heating and Cooling Great experience from Jonathan and Christian! Job: Disassemble and remove old attic ductwork and install new ductwork and runs. Install Accuclean air filter in both attic and main floor systems. Install new smart thermostat and attic insulation infill. 1. Honest assessment of what is needed and more importantly, what is not needed. And not just trying to sell the most expensive option. 2. Competitive and reasonable quote. 3. I asked about radiant heat treatment as an add on, but he said while they could do it, it would not have efficient results and not worth the investment since I had a high hip roof and large attic area. 4. Great work ethic and work product. Duct system, filtering system and thermostat expertly installed, set up and running effectively. 5. All interactions cordial, efficient and polite. 6. Punctual in accordance with automated notices about arrival and appointment reminders 7. Clean work - brought coverings to reduce tracking of insulation through house areas traversed. Cleaned any evidence of insulation. 8. Works relatively quietly. No loud talk or music. 9. Small footprint on street. One van. I expected van and trailer. New materials brought in, unloaded and installed while old duct system all loaded up and removed. Very efficient. Overall, fantastic experience and is highly recommended.

Blake
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Blake

We recently bought a home and right away one of the AC units failed. Of course it was after hours (do AC units ever fail not after hours?). I called Paradise Heating and Air and they dispatched quickly, diagnosed the problem, and had us cool and running again before the kids were even in bed. Jonathan figured out the issue fast, and the quality of work and the cleanup afterward were truly noticeable. They've become our go-to HVAC company, always a notch above on service and workmanship. If you need emergency AC repair or any HVAC work in Vestavia Hills or anywhere in the Birmingham area, don't hesitate to reach out to this team. Love working with them!

Chris Holland
google
Chris Holland

Jonathan and the whole Paradise staff are professional, courteous, and fast. I had a system failure, and they were able to get to me quickly and diagnose the problem. Through Jonathan's research he discovered my system had a warrantied part needing replacement and saved me $1600. I would HIGHLY recommend Jonathan and the Paradise crew and will be using again!

Misty Hughes
google
Misty Hughes

I had my new unit installed about a week ago. Johnathan was the best. It was effortless , perfect workmanship , on time. Explained everything! Thank you Paradise !! FIRST RATE. TOOK CARE OF ME ASAP. WILL USE IN FUTURE FOR NEW UNIT

Melanie Authement
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Melanie Authement

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

PARTHA GHOSAL
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PARTHA GHOSAL

Very professional and knowledgeable. No need to look over their shoulder. Very satisfied with their work.

Polly Norris
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Polly Norris

I honestly cannot tell you just how highly I recommend these folks. Five stars are not enough! They are friendly, professional, very competitively priced and a real pleasure to work with. I've had them out twice, once for a split unit in my sunroom and then today for my main unit and both times they did an exceptional job.

Perry Koonce
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Perry Koonce

Jonathan provided another on-time, courteous and professional annual maintenance service call. Paradise Heating and Air provides great service at a great value.

mohannad azzam
google
mohannad azzam

Great service, assessed the issue in no time. Discussed all available options, extremely professional and friendly . Appreciated the help. Provided the best price .

Bryan Sutton
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Bryan Sutton
Irv Fietz
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Irv Fietz

Jonathon provides excellent service! Shows up on time, no mess, good at explaining the problem and does high quality work.

samuel wilson
google
samuel wilson

Tech was on time, very professional, courteous, knowledgeable addressed my concerns about the system. Will definitely be recommending Paradise Heating and Air.

Cassandra Moore
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Cassandra Moore

Always on time and very well please explain everything that they did

SL Hansen
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SL Hansen

Very HONEST! Very knowledgable, an expert. patient, very polite. I got 3 quotes on repairing two small open cracks in the furnace vent pipe. His assessment was identical to another long-standing HVAC company. I have great confidence in Paradise HVAC company!!! I got 3 different companies for quotes on repairing two small open cracks in the furnace vent pipe. The 1st company who quoted said I might need to change my whole furnace and hot water heater system to electric!!!. And also was gonna hire a chimney sweep (at my expense!) to assess my chimney!!! Jonathan of Paradise HVAC just climbed up on the roof three times (necessary) himself and said the chimney flue was in good shape. I trust Paradise completely, but I got the same diagnosis and a much lower estimate from another company. That’s the only reason I didn’t use paradise.

Naseem Akhtar
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Naseem Akhtar

Paradise company is very reliable and trusted. Jonathan is very knowledgeable and understanding. He replaced A C Unit in my home and since then it's working efficiently. I want to recommend this company for everyone

Hector Orozco
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Hector Orozco
Joshua Woodall
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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!

Audray Jones
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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

SteelCityScreenPrint
google
SteelCityScreenPrint

Paradise answered my call late at night and made me an appointment for first thing in the morning and even showed up early. They crawled under my rental house through the dirt and mud to inform me that my landlord had me living in a dangerous environment. He was upfront and honest about everything and let me know the steps I needed to do to get my family out of this situation. No bandaid fixes from these guys, they do things in a professional manner and I couldn’t be more appreciative. Top notch customer service. Highly recommend!

(205) 326-7268

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