The Heat Pump Store installing a Mitsubishi heat pump

After reading through our blog post on finding the right Mitsubishi heat pump for your home, you’ll learn:

    • The basic set-up and components of Mitsubishi heat pump systems
    • The primary benefits of Mitsubishi systems
    • The factors you need to consider when choosing a system

Heat pump systems have grown in popularity throughout the Pacific Northwest due to their efficient operations and minimal maintenance. Among the various brands offering heat pump systems, Mitsubishi is a reliable producer, and several of their models would rank among the best for heating and cooling your home.

However, picking a heat pump system isn’t as easy as just heading to a retail store and plucking one off the shelf. You need to find the right model for your home. If you don’t, you may find that system working overtime to heat or cool a home that’s too big or too small for your zone. You may also find that you’re missing out on features that you failed to realize weren’t included in the system you chose.

Choosing the Right Mitsubishi Heat Pump for Your Home

There are various things you need to consider when choosing the ideal Mitsubishi heat pump for your home. Of course, it also helps to understand some of the basics of the system, including its various components, why people prefer heat pumps over conventional HVAC systems, and the difference between single and multi-zone systems.

Mitsubishi Mini Split Basics

Heat pumps work differently than conventional HVAC systems. The primary difference is that heat pumps don’t use ducts to push conditioned air throughout your home. Instead, they use refrigerant lines that help trap heat and move it where it’s needed. During the winter months, that means any heat from outside (even during very low temperatures) is trapped and brought inside. During the summer months, the reverse occurs.

Heat pump systems use several basic parts to make this occur:

    • The outdoor unit, sometimes referred to as the condensing unit, cools the refrigerant and pumps the liquid where it’s needed.
    • The indoor unit, sometimes called the air handler, can be mounted to your wall, floor, or ceiling and dispenses cool or hot air throughout your home.
    • Refrigerant lines that hold the refrigerant liquid and connect the outdoor unit to the indoor one.
    • The remote control allows you to access the system’s settings or turn it on or off.

Mitsubishi Mini Split Benefits

Since heat pumps don’t use ducts, their operation is far more efficient than typical HVAC systems and is easier to scale as needed. Ducts are often leaky, which causes typical HVAC systems to work even harder to push conditioned air throughout the home. Ducted systems also require you to heat or cool the entire home, whereas a multi-zone heat pump system allows you only to heat or cool a specific room. In total, Mitsubishi heat pump systems can be up to 40% more efficient than conventional systems.

Also, the lack of ducts makes it easier to add air conditioning to heating throughout your home as you build additions or convert storage rooms to offices or bedrooms. You won’t have to pay to build out more ducts or replace existing equipment. Your contractor will only need to create a small hole to pass refrigerant lines through walls with a heat pump.

Things to Consider

Now that the basics are out of the way, it’s time to discuss what you need to consider when making your purchase. With assistance from a contractor you’ll need to decide whether you need a single or multi-zone system, how many BTUs your home requires, and what additional features you’d like the system to include.

Single-Zone Vs. Multi-Zone

A single-zone heat pump system uses only one indoor unit. As the Pacific Northwest has a fairly moderate climate, a small, single-family home may only need one unit to heat or cool the entire home.

A multi-zone heat pump system uses multiple indoor units. You can decide where you’d like the units to be placed within the home, such as the bedrooms, family rooms, or home office. This customizability ensures you’re only heating or cooling rooms someone is in, which further improves the system’s overall efficiency.


One of the most basic considerations for finding the right Mitsubishi heat pump is the size of the space it’s heating and cooling. The best way to determine whether the system you chose is powerful enough for your home is by checking its BTUs. NOTE: The nominal capacity does not always equate to BTU capacity range.

To determine how many BTUs your home needs, you should look at its square footage. An area of only 150 to 250 square feet would need a system of at least 6000 BTUs. Each additional 50 square feet typically requires another 1000 BTUs. Remember, these are very basic rules of thumb and can be greatly impacted by insulation levels, windows, leakiness of the home, and other factors. Be sure to consult your contractor for sizing assistance.

    • 150 to 250 sq. ft. requires 6,000 BTUs
    • 250 to 300 sq. ft. requires 7,000 BTUs
    • 300 to 350 sq. ft. requires 8,000 BTUs
    • 350 to 400 sq. ft. requires 9,000 BTUs
    • 400 to 450 sq. ft. requires 10,000 BTUs
    • 450 to 550 sq. ft. requires 12,000 BTUs
    • 550 to 700 sq. ft. requires 14,000 BTUs
    • 700 to 1,000 sq. ft. requires 18,000 BTUs
    • 1,000 to 1,200 sq. ft. requires 21,000 BTUs
    • 1,200 to 1,400 sq. ft. requires 23,000 BTUs


Many Mitsubishi heat pump systems can be integrated into your home’s smart control system. That gives you the ability to adjust the heat pump via voice control, through an app on your phone or tablet, or anywhere you have an internet connection. Smart home integration also makes it easier to create a schedule for when the heat pump should be turned on and to what temperature. You’ll often gain additional insights into the system’s power consumption through the system’s smart app, too.

Some units have a self-cleaning mode that dramatically reduces the need for maintenance. While you’ll still want to remove and clean the air filter from the indoor unit about once a month, the self-cleaning feature should reduce the need for additional cleaning.

Many people may shy away from bulky air conditioning units like those installed directly into a window. Luckily, Mitsubishi offers a variety of heat pump systems that contain modern design touches and effortlessly fit into the design scheme of almost any room.

Find the Right Mitsubishi Heat Pump System for Your Needs at The Heat Pump Store

It’s easy to be overwhelmed with all this information. That’s why The Heat Pump Store makes it easy to purchase a Mitsubishi heat pump system and get it installed with the help of our professional technicians. If you prefer a DIY installation and have moderate DIY home improvement experience, we can also give you the tools to tackle the job yourself.

So, if you’re thinking of purchasing a heat pump system, give us a call today at 877-509-2961. We’ll work with you to understand your needs and offer a system that best fits them.


Featured Image: Mike Fig Photo/Shutterstock