Air Mechanical, Inc. Blog: Archive for the ‘Heat Pumps’ Category

How a Heat Pump Cools and Heats Your Home

Monday, August 7th, 2017

Heat-pump-ac-unitWhile you may not know it by looking at the name, a heat pump is, by design, a refrigeration system. As you know, refrigeration is used to keep spaces cool, so it may seem odd to use refrigeration as part of the heating process. And yet, a heat pump continues to use refrigerant to operate well into the heating season. There are no burners lighting up to keep you warm—just the same components as are in a conventional air conditioner and a few extra.

Contact a local technician to find out whether a heat pump is the right choice for your home, or read on for a primer on heat pump operations and the basics of why people choose a heat pump in Minnesota homes.

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What’s So Special About Heat Pumps?

Tuesday, October 1st, 2013

You may have heard about heat pumps as an option for retro-fitting the heating system in your home, or as an option for a new home. If you’ve spent most of your life getting warmth from furnaces or boilers during the winter, you may feel hesitant about making the heat pump a serious option. However, they are growing in popularity in modern homes, so if heater installation is on the horizon for you, you should definitely consider the advantages of installing a heat pump.

Air Mechanical Inc. can handle any of your concerns about heat pumps in Andover, MN, and we perform expert installation and maintenance on them as well.

So why do we recommend a heat pump?

The simplest reason is that a heat pump can act as both a heater and an air conditioner, packaged into one system. If you are familiar with the workings of central air conditioning, then you already know a great deal about how a heat pump operates. The unit moves refrigerant through tubes and coils to shift heat from one spot to another. In cooling mode, the refrigerant absorbs heat from the indoor evaporator coil, and releases it from the outdoor condensing coil. In heating mode, the direction of the refrigerant reverses and the two coils exchange jobs. Now the indoor coil is a condenser that releases heat, and the outdoor coil is an evaporator that absorbs heat. To achieve this double function, a heat pump uses a reversing valve and a second compressor.

If you already have an air conditioner or a forced air system like a furnace installed in your home, heat pumps can be hooked up to the existing ductwork, which makes installation easier.

Heat pump models 15 years ago were not terribly energy efficient, but the new models have improved: they must have a minimum AFUE (annual fuel utilization efficiency) rating of 80% to receive the U.S. government’s Energy Star label—and many rate higher than this.

This all sounds fantastic—and it is! But heat pumps won’t work for every home. Their heating power is not as strong as their cooling power, so depending on the conditions in your house, a heat pump may not be ideal for keeping you warm. This is why you should get expert advice before making a choice. Trained HVAC technicians can perform a heat load calculation to determine the specific heating requirements of your house so you will get the best system to keep you cozy through the winter.

For heat pumps in Andover, MN, trust on the reliable name of Air Mechanical Inc. Installation, repairs, maintenance—when it comes to heat pumps, we do it all!

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How Heat Pumps Provide Cooling in your Home

Friday, June 21st, 2013

Heat pumps are a great way to get efficient cooling in your home. Here at Air Mechanical Inc we offer complete Blaine, MN heat pump repair, installation and maintenance services for all different kinds of heat pumps. We wanted to help our customers be able to recognize when they need repairs by putting together a quick explanation of how a heat pump producing cooling for your home.

How Heat Pumps Work

If you’ve ever used a can of compressed air to dust your computer then you’ve likely noticed how the outside of the can gets cold. This is because as you release gas from the can, the remaining gas in the can has to expand in order to fill the space left. In order to expand, the gas sucks in heat energy from the space around it. Your heat pump uses the exact same principle of physics to cool your home except that they use a compressed refrigerant.

Your heat pump has two units: an indoor unit and an outdoor one. In the outdoor unit is a compressor that compresses the refrigerant. It then circulates that compressed refrigerant inside to the evaporator coil where the refrigerant gets released. A fan inside the unit blows warm air over the cool coils and absorbs heat out of the air. The cool air gets pushed through into your home and the refrigerant continues to the outdoor unit once again where the heat is exhausted.

If you’re interested in Blaine, MN heat pump installation or if your current system isn’t working well, the experts at Air Mechanical can help you with any services that you need.

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