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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

Wilson Moores
Wilson Moores

just left us a 5 star review

on
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9 months ago  
Wilson Moores
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Wilson Moores

I have been extremely pleased with the work performed and customer service.

Melanie Kettle
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Melanie Kettle

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

A.K. Powell
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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

Chase H
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Chase H

Quick service, fair price, and very thorough with explaining different options. Jonathan was straight and to the point without any sort of pushy sales talk which is rare in the HVAC industry today. Highly recommend!

Erica Harris
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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.

Amanda Horsley
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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.

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!!

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!

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.

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.

Nae Nae
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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.

Pat Turner
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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.

Mark Hamblen
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Mark Hamblen

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

Cassandra Moore
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Cassandra Moore

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

Robby Brumberg
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Robby Brumberg
SteelCityScreenPrint
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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!

Amy Graham
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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!

lee lee
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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."

Katherine Marshall
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Katherine Marshall

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

Jon Hinds
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Jon Hinds

On time, explained everything very well. Came up with come options to repair my system rather than replace. Thank you.

Charles Reynolds
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Charles Reynolds

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

Kyle & Joanna Baker
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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!

John DiOrio
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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.

Brian L
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Brian L

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

Monti Pres
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Monti Pres

Wonderful

Martha Neighbors
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Martha Neighbors

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

Adam Myers
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Adam Myers

One of our AC units decided to give up, or so we thought. We had several companies come out and give us a quote to replace our unit, all exceeding $13k. Paradise came out, and instead of just giving a price to replace it, they asked if they could tinker with the equipment. They had it fixed within 10 minutes!!! Paradise gave us a quote so we have an idea of the cost for when this ancient unit ACTUALLY dies, and it was $3k-$8k cheaper than our other quotes!!! They could have easily just given us a price for a new unit like everyone else. I appreciate that Paradise put forth the effort to figure out the problem, and saved us THOUSANDS!!!

Chris Holland
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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!

Kyndall Alexander
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Kyndall Alexander

I would definitely recommend this company they were very knowledgeable and a decent price!

Alvin Hardy
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Alvin Hardy

Staff operated in true professionalism and integrity. It's such a relief to know there are still honest people out there. There level of customer service is rarely seen today. Thank you!

Pam Cain
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Pam Cain

Great, fast and professional service always!!

Rachel Knight
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Rachel Knight

Perfectly on time and very quick! They were able to diagnose the problem and fix it within 30 minutes. No BS and very well priced! I was very impressed!

Nancy Hollaway
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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.

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

J Harrell
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J Harrell
Rachael Cowan
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Rachael Cowan

Jonathan has always been very respectful and helpful when he comes to service our HVAC! They are prompt to get you on the schedule, have fair pricing, and he is great about explaining what he did to fix your problems. This is an honest company that makes you feel valued.

Natalia Nagorneac
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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.

Joshua Bergeron
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Joshua Bergeron

Paradise Heating and Air fixed out upstairs unit by cleaning out the condenser coil and replacing the capacitor. Didn’t no over charge or try to up sell me on anything. Very trustworthy company.

B. Keith Putt
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B. Keith Putt

Excellent company! Jonathan and Matt were professional, friendly, and extremely efficient. They had my HVAC system replaced in 4 hours! If my other unit ever bites the dust, they will be the ones I call for a new one!! I highly recommend them.

James Coco
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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!

Rgrs Vncnt
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Rgrs Vncnt

Great service... Speedy and Fairly priced too!

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!!!

DIONDRA ROBINSON
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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.

akash ahmed
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akash ahmed

Good service.

Rory Chrane
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Rory Chrane

From the first phone call, I was impressed, I spoke to Jennifer and on a follow up call, I spoke to Gracie. Both are related to the owner Jonathan who came out today and gave me a breakdown and an idea of what is needed and proposed how to go about doing a mini split, which I’m excited to get done, so much so that I wanted to give a review, even before the work begins which I’m sure will be excellent. He recommended a good brand Mitsubishi and explained why he chooses them, giving a very detailed explanation. Jonathan was very personable and efficient and I look forward to the job being completed and future business with this company.

Zeke Fason
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Zeke Fason
Cynthia Gillantine
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Cynthia Gillantine

Very professional, courtesy and helpful. We needed a part but no pressure to buy it. We will use them again.

Misty Hughes
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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

samuel wilson
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samuel wilson

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

Pam Bennett
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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!

(205) 326-7268

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