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Please research the appropriate unit size for your area before purchasing. Above's suggestion of square footage is based on ideal situations where minimal heat is transferred. If the area contains many electrical appliances, windows, or non-insulated areas, your sizing may need to increase above the recommended square footage. Please ask an expert technician for ideal size before purchasing.

  1. How Often Should a Mini Split Defrost?

    How Often Should a Mini Split Defrost?

    You take a chicken breast out to defrost before cooking it for dinner, but you’ve never thought your ductless mini split has to defrost the same way. Do you really have to defrost your mini split and if so, how often?

    We’ll answer those questions and more in today’s blog post!

    Why Do Ductless Mini Splits Have to Defrost?

    Ductless mini split systems are capable of both heating and cooling. This is part of what saves you so much money in owning a mini split, as you don’t have to buy nor maintain separate air conditioning and heating units anymore.

    Your mini split system runs on refrigerant either way, but how that refrigerant behaves depends on whether the unit is cooling versus heating your home. For example, when providing cooling, the refrigerant meets warm air and becomes warm as a result. The refrigerant will change state from a liquid to gas during the cooling process, allowing the air to cool down as well. Then the vapor returns to a li

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  2. Why Use a VRF System?

    Why Use a VRF System?

    There’s never a bad time to start budgeting, and so that’s just what you’ve decided to do. Yet upon reviewing your household spending, you’re surprised to see how much money you lose each month to your energy bills. It’s not like you can stop using electricity, but something has to give.

    You’re thinking of replacing your faulty old air conditioner or rickety heater, but you’re not sure with what. A neighbor recommended a variable refrigerant flow or VRF system, which uses an outdoor condenser and indoor units that spread temperate air throughout the house.

    A VRF system certainly sounds like an appealing option, but is it right for you? Here are some benefits of using a VRF system that will help you decide.

    Heating and Cooling in One Unit

    Right now, if you want to blow cool air throughout your home, you turn on your air conditioner. When you want hot air, you use your heater or furnace. You certainly wouldn’t touch your AC in the winte

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  3. Does a Mini Split Dehumidify?

    Does a Mini Split Dehumidify?

    Humidity is a careful balancing act. If there’s too little, your skin and nasal passages dry out. Yet when your home or commercial office has too much humidity, the hot environment creates the perfect breeding ground for mold or mildew.

    You’re trying to better regulate the surrounding humidity, using a dehumidifier here and there. If you run your ductless mini split system, do the indoor air-handling units also act as a dehumidifier or do they add more humidity to the air?

    Ductless mini split systems can dehumidify to a degree, especially if your ductless mini split has a dry mode. However, mini splits do the most dehumidifying in the summer and the least in the winter. If you wanted to reduce your home’s relative humidity in the cooler months, you’d need a separate dehumidifying unit.

    Understanding Relative Humidity

    What is relative humidity anyway? Well, to explain that, we have to look at absolute humidity first. And before that, w

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  4. Can You Run a Mini Split on a Generator?

    Can You Run a Mini Split on a Generator?

    It’s been a particularly rough winter, and with the whipping winds and endless mountains of snow, you’ve had a lot of power outages. After the third time your home lost power in a month, you decided enough was enough and that you needed a generator.

    You have a pretty good generator, and though it can’t power every last electronic and appliance throughout your home, it suffices for the important things like your laptop so you can continue working even in an outage.

    Well, actually, it’s hard to work when your fingers are freezing cold (and the rest of you is too). You’d love to have some heat even if your house is in the dark, but you’re not sure if you can run your mini split on a generator? Can you?

    Yes, you can! Here’s what you need to know.

    Running a Mini Split on a Generator — The Importance of Wattage

    While running a mini split on a generator is something that others have done and thus you can too, we want to stress there ar

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  5. Split AC Is Making Noise

    Split AC Is Making Noise

    The first time you heard that horrible sound, you were justifiably unnerved. You searched all over your house trying to figure out what the source could have been. You’ve since unplugged the fridge, the oven, and the living room TV, but none of those appliances and electronics seem to be responsible for the noise, as it persists.

    Ruling out your options is good, as now you can say with more confidence that it may be an HVAC unit, even your split AC. The problem is your air conditioner can make all sorts of noises depending on the issue. Let’s take a closer look at the sounds you might hear from your split AC.


    This noise is almost like a bubbling. During some moments, the sound is pretty distinct, but in other cases, it almost blends into the background. Even still, if your split AC gurgles, it’s because the unit has collected too much moisture. The b

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  6. Split AC is leaking water

    Split AC is leaking water

    This morning, when you left the house for work, all was well. Your split AC was on and humming away and the house felt cool. When you came home, you walked into a nightmare. Your living room or another part of your house was covered in water. You connected the dots and attributed the leak to your split AC. What is going on here?

    The cause of a split AC leak can be one of many things. Let’s go over these issues now so you can quickly get the problem patched up!

    Lack of Refrigerant

    If it’s been a while since you’ve added refrigerant to your split AC, you could have indirectly caused the water leakage. How, you ask? Well, without enough refrigerant (usually caused by a refrigerant leak), the evaporator coil gets cold, sometimes to the point of freezing. The coil will eventually thaw, sending a lot more water than expected to your drain pan. This water leaks

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  7. How Is VRF Calculated?

    How Is VRF Calculated?

    An air conditioning unit like a ductless mini split system has a variable refrigerant flow or VRF. The criteria for a unit to be a VRF is having several indoor air-handling units and one outdoor condenser or compressor. In VRF systems they call it diversity factor.  That means that if you have a 10 ton condenser unit with 13 indoor units each 1 ton, then your diversity factor is 130%.  That means that you have 30% more capacity in evaporation than condensation. VRF systems can use water cooling or include a three-piped heat recovery system or a two-piped heat pump.

    No matter the VRF system, understanding your refrigerant flow allows you to gauge how effectively your air conditioner or heater uses the refrigerant that travels to the evaporators in each indoor air-handling unit. The better the VRF, the more control you have over each cooling zone, allowing you to set your home

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  8. How Does Heat Recovery VRF Work?

    How Does Heat Recovery VRF Work?

    In our last post, we discussed variable refrigerant flow or VRF in relation to air conditioners, but heat recovery systems can be VRF systems as well. With the proper flow of refrigerant, a heat recovery system can send heat towards the rooms in a home or commercial building that need it most. For more open spaces especially, this method of heating is appreciated, as from corner to corner, the area is evenly warmed.

    Heat recovery VRF systems can also sometimes heat and cool a space at the same time, and all from one condensing unit. We’ve discussed this on the blog before, but it never gets less amazing. Instead of having a separate air conditioner and heater, you can get all your cooling needs from the heat recovery VRF system. You could save on the cost of the unit as well as maintenance, as you only need to take care of the VRF system, not two units.

    There’s a difference between heat recovery VRF and heat pump VRF systems, so we wanted to take the time to discuss the

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  9. Does Mini Split AC save electricity?

    Does Mini Split AC save electricity?

    You try to budget for your bills ahead of time so you can effectively manage your finances every month. The water bill and phone bill are about the same from month to month, but your electric bill is always a wildcard. It’s either high or really high and you’re sick of it.

    You decided to be more efficient in your electricity usage around the house. That helped reduce the bill to a degree, but not as much as you would have wanted. You had the thought recently that perhaps your HVAC units are driving up your electricity too much.

    You’ve been meaning to replace your rickety old air conditioner anyway. A friend has had a lot of good to say about a split AC system, but you’re not too familiar with this method of cooling. If you switch to a mini split AC, will you really reduce electricity and thus lower your monthly bills?

    Absolutely! As long as your increasing your SEER efficiency as well, more info here: energy savings

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  10. Are VRF Systems Reliable?

    Are VRF Systems Reliable?

    Your current heating or cooling system (or perhaps it’s even both) has gotten far too expensive. Not only are you paying a lot in energy bills because your HVAC just isn’t energy-efficient, but the units break down often too. The repairs are getting costlier since the unit’s parts have become harder to come by. Even maintenance isn’t cheap.

    It sounds like you could benefit from a new heating and cooling solution. One option you’re looking at is a variable refrigerant flow or VRF system. You’ve heard some good things, but you’re still undecided. Are VRF systems all that reliable?

    Most definitely, and they’re certainly more reliable than your current tired air conditioner or heater. Here are some ways that you can rely on a VRF system going forward.

    Temperature Control

    Your HVAC units lack precise temperature control. Even if you can tip the thermos

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