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Heat Pumps: Their Construction and Function

heat pumps Los Angeles If your Eagle Rock home has a heat pump and you don't know how it operates, understanding the function of heat pumps is a good idea. Don't completely rely on your air conditioning company for knowledge regarding heat pumps because both small and large problems with your HVAC system can go unnoticed if you aren't aware of a heat pump's proper function.

Heat Pump Components

  • Outdoor Unit – Resembles an air conditioner
  • Indoor Air Handler – Works to disperse warm or cool air in the home
  • Ductwork – Distributes air within the home through a tunnel system
  • Control Board – Manages the cooling, heating, and defrosting modes of the heat pump
  • Refrigerant – Circulates through the indoor and outdoor units
  • Refrigeration Lines and Pipes – Serve as the connection between the indoor and outdoor units
  • Accumulator – Changes the refrigerant according to seasonal requirements
  • Compressor – Forces refrigerant through the heat pump system
  • Thermostatic Expansion Valves – Control the flow of refrigerant
  • Condenser and Evaporating Coils – Cool or heat air according to the flow of refrigerant
  • Reversing Valves – Alter the flow of refrigerant depending on whether the heat pump system is in heating or cooling mode
  • Heat Strips – Function as additional electrical heating components during very low temperatures

How Do Heat Pumps Work?

Heat pumps transfer heat instead of generating it. The mechanical-compression cycle refrigeration system in a heat pump either heats or cools a home depending on the directional flow of refrigerant. An air conditioning company adds an indoor and an outdoor unit when installing a heat pump in a home. During the summer, your heat pump forces out the warm air inside your home, and during the winter, it transfers heat from outdoors to the inside of your home.

A lot of Eagle Rock homeowners hire an air conditioning company to install heat pumps in their homes because a heat pump involves an all-in-one heating and cooling system. If you have questions about your heat pump or if you require repairs, contact a reputable air conditioning company like Home Comfort Heating & Air Conditioning for assistance.

For more information on heat pumps in Eagle Rock call 323-308-5670 or complete our online request form.

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Air Conditioning & Heating Installation
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"Just high quality work at reasonable rates that you'll be happy to tell your neighbors about"

John Farrugia

HVAC Contractor

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For one thing, we make it a point to thoroughly screen our employees. Each hand-picked member of our team endures a rigorous interview process, thorough background check and drug testing.

Plus, we specialize in HVAC installation for older homes – the type of service most new companies on the scene can't and won't touch. We even offer free second opinions on condemned units. If your usual go-to air conditioning company tells you that replacement is your only option, call us for a second opinion and get the straight facts for FREE.

If you take a look at some of our testimonials, you’ll find that our customers say we are on time, on budget, and that we go the extra mile. We take the time to listen to you, and we work hard to plan out the most cost-effective, energy-efficient, and environmentally-friendly system that will perfectly fit your needs.

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Pasadena, CA


Fabulous! John’s estimate was great, detailed, and the work went smoothly. John really looked at our house thoroughly before giving us the estimate and doing the work, so there were no “surprises”.

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Eagle Rock, CA


We had gotten many estimates from the likes of home Sears, Lowes, and quite a few others. Then a friend of ours recommended Home Comfort. Home Comfort was priced about in the middle but came highly recommended so we decided to go with them. The installation went exactly as planned. We had the heater/AC and duct work installed in the attic and it was done in the estimated time and with the utmost care and cleanliness (and it was during one of our heat waves). John was awesome, a professional and a total pleasure to deal with. He had great ideas for efficiency and esthetic appeal. John was also very honest, selling us only what was most efficient and needed for the size of our home. We would definitely hire John and Home Comfort again and would absolutely recommend there services. I would give John and Company a 5 star rating!

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Altadena, CA


We had a great experience working with this company. John is professional, prompt, and responsive. The job went exactly as planned- no unexpected costs or delays.

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Los Angeles, CA


We first reached out to John at Home Comfort in 2013 and had to wait on a new HVAC install, but when we were finally ready to pull the trigger this spring, he was ready and eager to go. He was responsive, his turnaround was great, and our system + Nest work like a charm. Highly recommend for quality, accountability, and price (based on other estimates from companies that took a week or more to respond to questions); and last but not least, friendliness.

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