A-Team Heating and Cooling





What Is a Heat Pump and How Does a Heat Pump Work?

heat pump work

What Is a Heat Pump? Simply put, a heat pump moves heat from one place to another. Get Maintenance Benefits. A heat pump is an HVAC system that transfers heat from one place to another. By understanding the basics of how a heat pump works, you can better decide if this is the right option for your home. Additionally, regular maintenance of your heat pump can provide several advantages.

Q: Looking to upgrade your HVAC system?

Consider investing in a heat pump instead of a traditional air conditioner and furnace. A heat pump operates by transferring heat from one location to another, utilizing energy to extract heat from the outdoors and transfer it indoors. This innovative system goes through a cycle of compression and exchange to increase or decrease the air’s temperature, providing your home with efficient heating and cooling capabilities. Upgrade to a heat pump today and enjoy the benefits of sustainable and cost-effective comfort. A heat pump is a part of a heating and cooling system and is installed outside the home.

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Heat Pumps: Heating and Cooling in One System

Heat pumps are versatile HVAC systems that can both heat and cool your home. They work by transferring heat instead of creating it, making them more energy-efficient than traditional furnaces and air conditioners. Here’s how they work:

Types of Heat Pumps:

There are a few different types of heat pumps on the market, each with its own benefits and drawbacks:

Split ductless heat pump

split ductless heat pump

• Split-ductless: This is the most common type of heat pump. It has a larger outdoor unit and a smaller indoor unit that is mounted on the wall or ceiling.

• Single-duct: This type of heat pump has only one outdoor unit and uses ductwork to distribute air throughout the home.

• Geothermal: This type of heat pump uses the earth’s natural warmth to heat and cool your home. It requires loops of pipe to be buried underground, making it the most expensive option.

Geothermal heat pump

How Heat Pumps Work:

Heat pumps work by using a refrigerant to transfer heat from one place to another. In heating mode, the system:

1. Collects heat: The heat pump gathers heat from the air or ground outside, even when the temperature is cold.

2. Compresses the refrigerant: The pump compresses the refrigerant, which increases its temperature.

3. Transfers heat indoors: The hot refrigerant then flows through coils inside the home, transferring heat to the air.

In cooling mode, the system works in reverse:

1. Collects heat indoors: The heat pump pulls heat from the air inside the home.

2. Transfers heat outdoors: The heat is then transferred to the refrigerant and released outside.

Benefits of Heat Pumps:

• Energy-efficient: Heat pumps can be up to three times more efficient than traditional furnaces and air conditioners.

• Environmentally friendly: Heat pumps do not produce any emissions, making them a more eco-friendly option.

• Year-round comfort: Heat pumps can provide both heating and cooling, eliminating the need for two separate systems.

Drawbacks of Heat Pumps:

• Higher upfront cost: Heat pumps are typically more expensive than traditional furnaces and air conditioners.

• Limited efficiency in extreme temperatures: Heat pumps may not be as efficient in very cold or hot climates.

• Backup system needed in some cases: In some climates, a backup heating system may be needed for very cold days.


Heat pumps are a great option for homeowners who are looking for an energy-efficient and environmentally friendly way to heat and cool their homes. However, it is important to consider the upfront cost and potential need for a backup system before making a decision.

Two Common Types of Heat Pumps: Air-Source and Ground-Source

Heat pumps offer a versatile and energy-efficient way to heat and cool your home. They work by transferring heat, rather than generating it, making them a more sustainable option compared to traditional furnaces and air conditioners. Here’s a breakdown of the two most common types of heat pumps:

1. Air-Source Heat Pumps:

air source heat pumps

Airsource heat pump

• Heat Source: Outdoor air

• Components:
o Outdoor unit
o Indoor piping system
o Optional air-source hot water heat pump

• Pros:
o Easy to install.
o Less expensive than ground-source pumps
o Can be paired with an air-source hot water heat pump for hot water.

• Cons:
o Less efficient than ground-source pumps in extreme temperatures
o Limited by outdoor air temperature

• Ideal for: Homes in mild climates with limited space

2. Ground-Source (Geothermal) Heat Pumps:

• Heat Source: Ground temperature (approximately 50°F)

• Components:
o Outdoor unit
o Buried looped pipe system.
o Indoor piping system

• Pros:
o More efficient than air-source pumps, especially in extreme temperatures
o Consistent performance year-round
o Longer lifespan

• Cons:
o Higher upfront cost
o Requires more space for installation of the buried pipe system.

• Ideal for: Homes in any climate with enough space for the pipe system

Like with any part of a heating and cooling system, heat pumps need regular maintenance.

Dirty heat pump components, like coils, filters, and fans, can alter the air quality inside the home. It’s crucial to maintain a clean heat pump and ensure all parts are running correctly. If the pump does not get regular maintenance, the system can become damaged and eventually stop working properly, resulting in homeowners replacing it.


Washtenaw County:

Ann Arbor, Chelsea, Dexter, Manchester, Milan, Saline, Superior Twp, Ypsilanti

Livingston County:

Brighton, Gregory, Hamburg, Howell, Pinckney, Stockbridge

Wayne County:

Belleville, Canton, Plymouth, Romulus, Sumpter, Van Buren, Willis

Always call a professional if you are experiencing issues with your heat pump.

Sometimes an issue may arise inside piping, under the ground, or inside a unit that a homeowner may not be able to see or diagnose. It’s essential to contact a professional who knows the inside and out of the system to help find the issue. Once found, they will be able to provide a solution and may also have advice for preventing it from happening again in the future
Liz Ward-Fader
Liz Ward-Fader
Can't recommend this place enough. We had our old furnace go down over night (right as it got cold of course) and had the honorable Harry out in a few hours. We had been told by a different company, it was the most expensive part that needed to be replaced. He tried every avenue to make sure it wasn't that first, to try and help a struggling family of 3, with one on the way, during the holidays. Turns out it was more than one thing, and the humble Harry came out the very next day and fixed the other piece that went down that morning. The prices were very fair, fairest I had been quoted between multiple companies, and he really went out of the way so we wouldn't go a day without heat. Customers for life. Thank you A Team, and Harry.
Todd Irgang
Todd Irgang
I read all the reviews on heating and cooling companies in the area (and had already been using an overpriced, less highly rated company for repairs in the past). Vince, the owner, gave me an estimate quickly without even looking at my system, based on information I provided him, which was significantly lower than the other estimates I received. He made sure everything was good to go when he came out for the deposit check (same day), and then completed the work 2 days later (during the hottest days this year). System is better than the one it replaced, and really cooled the house down faster than ever. They installed the system in about 3 hours, and did a fantastic job. Highly recommend them!
Wafa Mohessin
Wafa Mohessin
Great service and honest people!!!! The technician came on time, diagnosed the A/C, told us what was the problem and how to fix it. He checked the pressure of the A/C, gave some advices and told us how much will cost us to repair. We preferred to buy the parts and repair the A/C by ourselves and he didn’t charge us any penny.
J Morrison
J Morrison
Had our AC go out after hours but they were able to squeeze us in at the last moment. Vince was professional and took pride in the work he did to repair our unit. Took the time to show me how to clean off the unit and didn’t try to upsell or mislead me for sales at all. Overall 10/10 experience and we will be using them for any future hvac needs!
Jamie Pringle
Jamie Pringle
TLDR: A-Team is great, worked quickly and got my HVAC working for a very reasonable price. They've made a new lifelong customer! My house started to feel warm Sunday evening and ice was appearing on the AC coils outside. I called A-Team, they took my information and told me to turn off the AC and would be out first thing in the morning. Harry from A-Team showed up right around 9AM, he took measurements, asked questions and told me that since the AC is about 27 years old that it is probably a refrigerant leak and he would recommend replacing the unit but could also try to refill the refrigerant that could hopefully get me a by another year or two. He told me if an issue with it came up in the next year to give them a call and they'd take off the price of this visit. Harry left about an hour later and the house was feeling nice and cold. About 10 hours later the house started to feel warm again and I got the feeling Harry was right and the refrigerant was leaking more. Tuesday morning I called them, Harry came out by 1PM and said that the refrigerant was leaking even faster now and would recommend a new unit. He also noted that my furnace which was also 27 years old was undersized for my ducts and said replacing it would be good for my power bills & get better heating & cooling throughout the house. He said his brother Vince would send over a quote in a few hours. About an hour later Vince sent over two very reasonable quotes to replace my AC & furnace and had also reduced the cost by the entire Monday visit. I accepted the quote for a new 3 ton 13 SEER AC unit and 5 ton 96% efficiency furnace and got it scheduled for Thursday morning. I told them to let me know if Wednesday opened up as an option because it was supposed to get hot Wednesday. A few hours later I got a message from Vince that they could fit me in on Wednesday and would be there around 8:30AM. By 12:30PM they were done and I had a brand new HVAC system that is keeping the house very cool and I'm getting better airflow upstairs than I have in the 9 years I've been at the house! Thanks Vince, Harry, and the entire A-Team for all your help! You all have made a lifelong customer.
Joe Hasley
Joe Hasley
Called and Harry was here within the hour. Very professional and showed me what was wrong as l watch. They were the only company that picked up the phone. Will use them from now on.
Regan Parker
Regan Parker
They were available on the weekend, reasonably priced, treated us more than fair, and best of all, they’re local to Ypsilanti. Highly recommend.
Melissa Waterbury
Melissa Waterbury
Friendly knowledgeable came out same day great business.
AC made horrendous noise middle of night and had to shut off during this long heat spell. Called 5 places on Google no one could come to even inspect till the next week, others never even called back. A-Team sent someone to look at it end of same day I called and were able to fix the next day. Henry fixed my system and explained some items on my system since I’m a new homeowner. Highly recommend them! Reasonable pricing, just be aware it’s $70 fee to have them come look at system. I figured there would be a fee since others do same, just think the scheduler should mention it when booking so people aren’t caught off guard.
Jessica Lowes
Jessica Lowes
Kelly and Vince are amazing and thanks to them after my furnace went out it was repaired in just an hour after I called in middle of night very sweet understanding people and am very thankful for them. They are the ones to call when you have a spur of the moment emergency they don't give you run around they get right to it! Thanks again