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

HVAC Financing Available | HVAC Repair Birmingham AL

Variable Frequency Drive

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A Variable Frequency Drive (VFD) is a device used to control the speed and torque of an electric motor by adjusting the frequency and voltage of the electricity supplied to it. In HVAC systems, VFDs are commonly used to optimize energy efficiency by allowing fans, pumps, and compressors to run at variable speeds rather than a fixed speed, matching the system’s output to the actual demand. This not only reduces energy consumption but also helps in prolonging equipment life by minimizing wear and tear.

Related Articles:
  • Glossary: ECM (Electronically Commutated Motor)
  • Glossary: VFD
  • Glossary: Variable Frequency Drive
  • Glossary: VFD
Alternative Meanings:
  • Variable Frequency Drive
    A Variable Frequency Drive (VFD) is a device used in HVAC systems to control the speed and power of an electric motor. By adjusting the frequency and voltage supplied to the motor, the VFD allows the motor to run at varying speeds instead of being either fully on or off. This not only improves energy efficiency by using only the amount of power needed for the specific task but also reduces wear and tear on the motor and other components, extending the lifespan of the equipment.
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© 2026 HVAC Birmingham, AL | Paradise Heating and Air | Website and Marketing by Cahaba Digital | AL License 22158

Deborah Atchison
Deborah Atchison

just left us a 5 star review

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1 year ago  
Deborah Atchison
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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!

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.

Danna Jones
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Danna Jones

Great service - always on time and very professional.

Kyndall Alexander
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Kyndall Alexander

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

Jerry Smith
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Jerry Smith

On time. Made excellent recommendations. Work performed quickly and reasonably.

Mary Cavett
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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!

Martha Neighbors
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Martha Neighbors

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

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.

Yan Zhu
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Yan Zhu

Jonathan came by and discussed my problem with me. He was professional and gave me helpful suggestions. He did not even charge me for his time. It was a pleasure to work with them, please give the company a try.

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!

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!

Gayle Wroclawski
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Gayle Wroclawski

We've been doing a complete renovation of our family home of 30 years to sell and retire. We also needed to make sure we had adequate insulation and have the ductwork inspected. I called Paradise Heating and Air, and found that this was a service they could provide. They were very responsive. I had an estimate within a few days and the job completed the following week. They fixed anything that could become a problem and blew in the amount of insulation to meet the current Hoover building code. Jonathan was so friendly, explained everything that was done and the cost was very reasonable. In fact he talked me out of insulating an area that wasn't really needed!!! I couldn't be happier with the service, and feel good that everything is secure and to code. I highly recommend Jonathan and Paradise Heating and Air!!

Ashley Ponter
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Ashley Ponter

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

Marianne Herman
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Marianne Herman

Exactly what I needed!

Malachi Ray
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Malachi Ray

Great honest and helpful people.

Printella Thomas
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Printella Thomas

Wonder job Persistent and thorough in evaluating the problem and correcting the problem

Wilson Moores
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Wilson Moores

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

Dave Meyer
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Dave Meyer

I was extremely impressed with Paradise Air and am very glad I found them. I have a very old HVAC system they needed some ducts and a condensate pump replaced. They were extremely thorough and clearly explained everything they planned on doing. The price was excellent given how much work they had to do in the crawlspace and the extra time they spent with me advising me on how to get as much out of my old system as I could. They weren’t there to try to sell me a new system. They were there to repair what I asked them to at a reasonable price and help me extend the life of my current system. I won’t even think of calling anyone else from now on.

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.

Cassandra Moore
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Cassandra Moore

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

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!

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.

Cheryl Kruse
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Cheryl Kruse

I highly recommend Paradise Heating and Air. I contacted them to give me an estimate on adding more insulation to my attic. They were super responsive. They came out, gave me an estimate that I felt was very reasonable. In a very short time I was on their schedule. They showed up at the time they told me they would and they did a great job!! They even took care of the areas that were leaking heat. They are very personable, great to deal with. I am super pleased.

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!

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.

Hector Orozco
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Hector Orozco
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.

Tom Marvin
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Tom Marvin

Jonathan and his crew are always quick to respond and on time. They always help me to understand what is going on with our AC and heating units. I get a concise explanation of what needs to be done. I have always gotten an honest answer about my current units and I have never gotten any pressure to replace the equipment that did not need replacing. It feels great to be able to trust the information you get from the people looking after your HVAC equipment, and that is what we get from Paradise. T. Marvin

Andrea Martin
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Andrea Martin

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

David Brainerd
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David Brainerd

Jonathan did a great job. Highly recommended.

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.

Robert Dasenbrock
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Robert Dasenbrock
Ralph Ozley
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Ralph Ozley

Jon showed up as planned and committed to. A big plus was that he had the components on his truck to fix the broken part. Had my heat running after a 1 hour service call. Yes, I would recommend Paradise Heating and Air ...5 Star rec.

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.

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!

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.

Monti Pres
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Monti Pres

Wonderful

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.

Cory Wynn
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Cory Wynn
Katherine Marshall
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Katherine Marshall

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

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.

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!

Blake Driskill
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Blake Driskill

Excellent experience!

Charles Reynolds
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Charles Reynolds

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

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

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!

Brian Motley
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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.

Mary Williams
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Mary Williams

Great experience!

Chris Mauck
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Chris Mauck

Came out same day and explained the problem I was having and how best to fix it, and also what to look for to get ahead of any future issues before they get too bad

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.

(205) 326-7268

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