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What Is a Heat Exchanger & How Does It Work?

Ever had an HVAC contractor come to your home for furnace repair and tell you what’s wrong, but you’re still in the dark? If we just said “Hey, your warm air plenum is leaking,” you probably would have no idea what’s going on. We might as well have just told you the gibble is floundering for all the sense it makes.

Well, here at Signature HVAC, we like to make sense. Our goal is to always bring you the hands-down best service in West Chester. But we also want you to understand what exactly is going on with your system, and why it needs to be fixed! And that’s what we’re going to do today—we’re going to clue you in on what a heat exchanger is, how it works, and what can go wrong with it.

Looking for furnace repairs that are guaranteed to provide fast, effective solutions? Contact Signature HVAC online today to get the quality service you deserve!

What Is a Heat Exchanger?

It is extremely easy to make heat exchangers confusing, which is funny, since the component and its functions are actually fairly simple. So in a bare-bones explanation, a heat exchanger transfers heat between two substances without those substances interacting directly. An exchanger is a network of tubes or coils that allows the movement of two fluids (fun fact: the term fluid can mean either liquids or gasses; in the case of your exchanger, it can mean either or, depending on the model and brand) through them.

Put simply, these fluids are generating and exchanging heat, all the while your blower fan is blowing air across the exchanger system. This air grabs up all of that heat from the exchanger assembly and makes its way into your ducts, where warmth is delivered into your home.

It’s…still a bit confusing, isn’t it? Let’s look at it this way: When something you want to eat is too hot, you blow on it to cool it off. In the case of an exchanger, it’s the hot food and that air blowing over it is transferring heat from the exchanger and into your home. So essentially, the exchanger is the assembly in your furnace, whether it be gas or electric, that actually does the heating part.

What Can Go Wrong with a Heat Exchanger?

As you might expect, a damaged heat exchanger basically means you’re not getting any heating at all until it’s fixed. The most common issue you’ll find with these is that they may crack when they become too old, or aren’t getting proper maintenance. A cracked heat exchanger is not only going to keep you from staying comfortable, but it can be a health and safety risk in your home, too, since a crack will allow gas or liquid leakage.

Comprehensive Furnace Repair Services in West Chester

So, now you know! Is the furnace in your home acting up and causing trouble? If so, you can rely on the professionals at Signature HVAC to meet all of your furnace repair needs! We carry extensive experience and knowledge when it comes to rooting out your furnace problems, be it an exchanger, or anything else. Don’t wait, give our team a call at 484-401-7337 or contact us online today!

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Real Reviews
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"I highly recommend Signature for HVAC service. The entires experience with Signature has been exceptional. The process was very customer focused starting from Scott McHale's engagement to organize the project to replace our old A/C, to an professional job John & Matt had done in installation, and Bob Seeger'r post installation service to troubleshoot the air flow damper, great job."

-Hosum Li

"Very confidant! Our technician Bob Seegar was great."

-Debbie Kaba

"Joe has been servicing our geothermal from Signature since the initial instalation. He is by far the best. When they call to schedule our bi yearly maintenance they know to send Joe. Not only is great at his job he has become a friend. Thanks Joe!!!"

-jim paolella

"I would highly recommend Signature for all HVAC needs."

-jim paolella

"Bob Seeger was our technician this time around. His level of professionalism was exceptional - it really stood out! Overall we are very happy that we switched to Signature several years ago!"

-Mark Kenney

"The Signature techs who come out to our house are always top-notch professionals. Very courteous, careful, and thorough. They always provide great explanations of the work that they are doing. I never feel like I am being pressured into unnecessary work or equipment replacement (like I used to feel with Service Experts). Today, Wade was the tech who came out. He was here exactly on time at 8am, and was done within an hour. Great work and another great service experience from Signature! Update 9/27/2016 - Today Bob Seeger came out to service our system in preparation for the winter. I was extremely impressed by his professionalism and courtesy. Before he started, we sat down and he clearly explained what he would be doing as part of the maintenance, and we agreed upon the need to replace the filter on the main unit, and also to perform humidifier maintenance as part of the work. After the work was complete he made recommendations for overall system enhancements that we should consider. Signature really has top-notch people working for them, and I continue to be extremely happy that we switched over to them several years ago."

-Mark Kenney

"Bob Seeger was our person to service our furnace and water heater. He showed me a problem with our water heater that could have been a major problem. He was very honest, great and so efficient! He fixed the problem. I am kind of hoping he will be the one to work with in the spring."

-Debbie Kaba

"Always feel confident with the work performed by Danny from Signature."

-William Stolting

"Bob was quite knowledgeable of the type of geothermal system that I have in my house. Before completing the annual maintenance/tune-up that I had requested, he asked relevant questions about my geothermal system (e.g., date of installation, last service, temperature preference, electric usage, etc.). After inspecting and servicing my system, Bob explain service that my system needed now and recommendations that would benefit my system. He explained the options in a non-pressured approach, as well as, the benefit in joining Signature HVAC's service plan which was helpful. Throughout the service visit, Bob was courteous, friendly and respectful. My wife and I were very satisfied and we plan to continue to use Signature HVAC in the future."

-John Schmitt

"Bob did an excellent job. He showed up on time, was courteous, and respectful. I recommend using Bob S from Signature Heating and Air-conditioning."

-Dennis Carlson

"Great service as always. Always prompt and knowledgeable."

-Adam Lusk

"Bob was very professional and informative on the heating & air condition job at my house. He is a very nice and caring person! Thank you!"

-Colleen Esgro

"Your whole team is outstanding."

-John price

"Daniel Cross (Signature) completed a thorough and quick fall service on my heating systems. What I liked best about Danny is that he spoke to me as a knowledgeable customer rather than treating me like a clueless homeowner. So refreshing to be treated with respect by an HVAC provider! He had an opportunity to "upsell" me on a service, but was honest and told me that it wasn't valuable in my situation. I would certainly trust him to service my equipment again, and would definitely recommend him to a friend."

-Susan Wentz

"Thanks again for walking me through the process and pointing out what was going on in my system. Mold be gone! Professional and friendly service. Thanks for your help."

-Mia Bosna

"Travis is another courteous, fine professional working for you!"

-John price

"We have a by-annual cleaning/tune-up contract with Signature for care and maintenance of our heater/air conditioning units. We have found this company to be excellent in their service and their very knowledgeable , friendly technicians. We highly recommend ."

-Ric DeAngelis

"We are very pleased with Signature and their very knowledgeable Technicians. We will be continuing our By-Annual service/tune-up with them...."

-Ric DeAngelis

"I have used Signature for about 10 years now. They provide excellent service. Bob Seeger was my most recent technician and he was on time, polite, informative, and technically proficient. I highly recommend signature for your HVAC needs. I have geothermal, and they are excellent at this technology."

-Charlie Phillips

"Mike B came out for the biannual check of the upstairs system--we had replaced the downstairs system in June---we are very satisfied. Mike was thorough, very professional, answered all my (sometimes inane) questions and kept the house clean. Good job Mike and thanks."

-sylvan hurewitz
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