Heat pumps are a great, energy-efficient alternative if you are considering switching from a furnace or air conditioning unit. Since these systems move heat instead of generating it, they can also cool your home in the warmer months. So, how do they work? Keep reading to find out everything you need to know about heat pumps!
What is a Heat Pump?
A heat pump is a component of your HVAC that heats or cools your home, depending on the season. Heat pumps are a conscious choice, as they do not burn fossil fuels. They are typically quiet, extremely efficient, and cost-effective.
Two Main Types of Heat Pumps
There are two main types of heat pumps – air source heat pumps and geothermal heat pumps.
An air-source heat pump (ASHP) uses outside air as an energy source to generate the preferred indoor temperature. Air-source heat pumps can be ducted or ductless. Air-source systems are more affordable, easily repaired, and have a lifespan of around 15 years. A mini-split system is a type of ASHP system and can be used in areas of your home that do not have ductwork. Ductless systems require less construction.
A geothermal heat pump is an underground system that uses the Earth’s temperature to exchange heat and air conditioning with your home. Because the soil is typically a consistent temperature, this system is extremely energy efficient. Geothermal heat pumps require a large amount of space to bury the system, but they are environmentally friendly, have low running costs, and can last more than 20 years.
How Does a Heat Pump Work?
A heat pump transports heat from the source to your home, no matter what your system type. Heat is taken from either the air outdoors or the air in the ground and pumped into areas of your home. When it is time to switch to air conditioning, the reversing valve changes the flow of the refrigerant, allowing your home to be cooled.
What are the components?
A heat pump has many components, and understanding what each one does is important for operating the system and understanding how the heat or air conditioning is distributed throughout your home.
The components include:
- Outdoor Unit – This unit operates the coil and fan and facilitates the heat exchange.
- Indoor Unit – This unit, also called the air handler, contains a coil and fan that enables air movement through the home.
- Refrigerant – This substance absorbs heat as it circulates and turns it cold in the summer.
- Compressor – This component pressurizes/heats up the refrigerant in the winter.
- Reversing Valve: This valve reverses the flow of the refrigerant, allowing the heat pump to switch between heating and cooling.
- Expansion Valve – This device regulates the flow of the refrigerant, reducing the pressure and temperature.
Advance Mechanical proudly offers heating and air conditioning services across Eastern NC. We pride ourselves on quality services and dedication to our customers. When choosing a heat pump, you should consider things like the size of the unit you will need, the brand, environmental friendliness, your duct system, maintenance, and servicing. If you’d like more information on a heat pump or need help deciding which system is right for you, one of our friendly team members can evaluate your home and help you decide what is best for you. Schedule an appointment with us today, at 252-355-9191.