Ductless Mini Split Systems

Mitsubishi Electric’s technologically advanced mini-split air conditioners and heat pumps can provide superior comfort, lower energy costs, zero emissions, and ultra-quiet heating and air conditioning in any climate. Learn more about our home heating and cooling solutions below.

What is a Ductless Heat Pump?

A ductless heat pump is an energy-efficient cooling and heating system that is installed outside of your home and connected to an indoor mini-split unit. It cycles hot and cold air where you want it depending on the season. Learn more about how these residential HVAC systems provide personalized comfort throughout your home year-round.

How a Ductless Mini Split System Works

Curious why there has been such a buzz around mini splits lately? It is the combination of efficiency and versatility. A mini split utilizes heat pump technology, which moves heat from one place to another. This method is much more efficient than creating the heat used in a traditional St. Louis furnace, and even uses less energy than a conventional air conditioner.

This movement of heat works two ways: removing heat from your St. Louis home in the summer, and bringing in heat from the outside air in the winter (even in sub freezing temperatures, a mini split can find ambient heat outside). This is done through two units, the indoor air handler and the outdoor compressor unit. They are connected via an airtight refrigerant line that virtually eliminates any loss of energy in St. Louis.

7 Benefits of Ductless Mini-Split Installation

A Single Room or the Whole House Solution

A ductless Mitsubishi unit is installed directly in the room that requires additional heating and cooling power in St. Louis. This makes mini splits great for recently added rooms, bonus rooms above the garage, or other areas that are not included in the ductwork of your central air conditioning system. 

However, SmartHouse can also connect multiple indoor air handling units to a single outdoor compressor in for a whole home heating and cooling solution in St. Louis. This makes mini splits a great supplement to your existing HVAC system.

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Financing and Rebate Options

Keeping a comfortable home is important, which is why we offer flexible financing options for your heating repair and replacement, to ensure you don’t have to go a single night without heat. Through our financing options, you can spread out your payments with 6 and 12 months, no interest options!

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Ductless or Ducted?

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Ducted HVAC Systems

Our all-electric ducted indoor air handlers can replace older, less efficient central units and furnaces while using existing ductwork. The horizontal-ducted units take up less space and allow you to more efficiently manage smaller comfort zones with compact duct runs.

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Ductless HVAC Systems

Ductless indoor units are ideal for adding cooling and heating to uncomfortable spaces or new space additions like sunrooms, bonus rooms and garages. They’re an ideal, zero-emission option to air-condition or heat older homes without ducts.

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Floor-Mounted Systems

Quickly warms a space to the desired temperature and a multi-flow vane distributing airflow throughout the room, preventing uneven temperatures.

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Wall Mounted Systems

Wall-mounted heating and air conditioning units independently manage the comfort of a single room and can maintain the precise temperature you set.

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Jennifer AdamsJennifer Adams
14:40 16 Jun 22
SmartHouse: SmartServiceman! I contacted SmartHouse about servicing my AC unit only to learn it would be a week before they had an opening on the calendar for me. The next day, I received a call... letting me know that due to a cancellation, they could have someone at my home that afternoon. Marcus called me when he was 15 minutes out, and when he arrived, he immediately got to work. He explained a few things to me, made some helpful suggestions, made sure I had a clean filter, he even sprayed a wasp nest lurking around the window next to my front door, and he witnessed my Rottweiler repeatedly opening the door trying to see why we were standing outside of his garage. Marcus did what he needed to do to get the job done, and was on his way within about 35 minutes; he was very professional, knowledgeable and personable. I appreciated how informative and polite Marcus was with me, and I will personally request him as my serviceman each time I need to contact SmartHouse.Thank You, Jennifer!read more
Scottie PriesmeyerScottie Priesmeyer
20:06 31 Mar 22
Dave Essner is the BEST! He's been my technician for the past nine years, is efficient and friendly. I highly recommend Dave.
Melissa PostenMelissa Posten
14:43 23 Mar 22
We originally found SmartHouse several years back when we were looking for a company to do an energy audit of our 120-year-old home. Because of the audit they did, we hired them to do the recommended... work, and saw a near-immediate change for the better in our energy bills. We've used them as our seasonal HVAC company ever since. This week they installed a new a/c unit, furnace, and two programmable thermostats in our house, fixing some not-up-to-code stuff they found along the way and generally just making everything work so much better. Their employees are also always on time, friendly and funny, and give good, honest advice about your system. We highly, highly recommend them!read more
Mary Ann KondroMary Ann Kondro
15:46 12 Nov 21
I was very satisfied with the installation of a new furnace performed by Smart House. The installation was done in the attic, and included some tricky maneuvers to first remove the old unit. I... witnessed the crews' problem solving and their ease and confidence and use of additional manpower called in, to be successful with it.The installation of the new furnace was done efficiently, communication with me on their progress was consistent, and the prep work and clean up involved with keeping my main floor hardwoods and carpeting protected up three flights of stairs was appreciated!!Overall, the crew did an excellent job. They had a great work ethic, were on time for the appointment, and were professional and yet pleasant in their interactions with me. I would hire SmartHouse again in an instant.(I should add that the company owner actually came to my house months before the installation and must have spent 45 minutes helping me to understand my options about what seemed to be my failing furnace. This was free of charge but definitely aided me in making the decision to use their services.)read more
Jeff BarwickJeff Barwick
00:32 17 Sep 21
Matt Gunn is the best. Competent , personable and professional.
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