Thermal Zone Mini Split Heat Pump User Manual

How much does a mini-split AC cost? What’s the price of a mini-split heat pump? What’s the best brand in the U.S. market? These are the questions answered in this ductless AC and heat pump buying guide. Our goal is to give you accurate information you can use to plan the budget for your air conditioning and heating purchase.

  1. Thermal Zone Mini Split Reviews
  2. Thermal Zone Mini Split Parts

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In this mini-split AC and heat pump guide we cover:

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  • Mini-split Prices by Brands

We provide the detail you don’t find elsewhere, and that’s why homeowners come here to plan their project.

What is a Mini-split AC or Heat Pump?

Here’s an overview for those just starting to research these efficient systems that continue to grow in popularity.

  • Mini: This term refers to the fact that the outside unit of a mini-split system, technically called a condensing unit or condenser, is smaller than a standard split system outside unit. Maximum capacity of a mini split system is less than the capacity of a standard split system. It’s more compact, and it can be installed on the ground, an outside wall or the roof.
  • Split: This term means the system has an outside unit, the condensing unit, and an indoor unit called the evaporator or air handler. This differs from a package unit where the heat source and air handler are combined in one large cabinet. Each mini-split condenser works with up to eight air handlers in separate rooms or zones. Evaporators are installed in the ceiling (small), high on a wall (small and medium) or on the floor (large) based on project requirements.
  • Ductless: Mini-split systems are also called ductless systems because no ductwork is required. Refrigerant carries heat from the condenser to the evaporator when heating (heat pumps only) and from the evaporator to the condenser when cooling (AC-only and heat pump models) through separate lines installed through the wall (preferred) or roof (some commercial installations). An electrical power line runs between the two. A drain line from the evaporator runs to the outside to drain condensation when the unit is air conditioning and dehumidifying the space.

Some mini-split systems are AC-only models for warm climates; others are heat pumps that heat and air condition in cool climates.

Mini-Split vs. Traditional HVAC

Aspect

The price above is based on installing a new mini-split AC for a 1700-2200 sf house. In order to offer an equal comparison between each brand. The mini-split system includes the same: 2 x 20 SEER 18K BTU Outdoor Units and 6-7 Indoor Wall mounted Air Handlers

Thermal Zone Mini Split Reviews

Mini-split Heat Pump Prices By Brands

Ductless or Mini-SplitTraditional HVAC
Very quiet. Compressor unit placed outdoors. Internal units contain quiet fans.Zone Heating and CoolingYou can add zone control for traditional HVAC with extra $1500-$3000.
No ducts, so changTraditionaltake filters and cleaning ducts are not an issue.Ductwork consumes significant internal space. Not an issue for homes designed around ductwork, but possibly a considerable disadvantage when retrofitting older buildings.
Each head or cassette is visible in any room where mounted. While they can be placed with discretion, they cannot be completely hidden. Refrigerant lines must run to each zone inside or outside the building, but often are unsightly unless hidden inside walls.Wos92ec0as manual.

Now, the warmer your climate is, the more BTUs of air conditioning you’ll need. It’s the reverse for heating in cool climates. Mini-split systems are not a good choice as the only heat source in climates where temperatures are regularly below freezing.

  • Zones 1 & 2 (hot): 22-30 Btu/sq. ft.
  • Zone 3 (warm): 20-24 Btu/sq. ft.
  • Zone 4 (moderate): 18-22 Btu/sq. ft.
  • Zone 5 (cool): 16-20 Btu/sq. ft.
  • Zone 6 (cold): 14-18 Btu/sq. ft.
  • Zone 7 (very cold): 12-16 Btu/sq. ft.

Air Conditioning: Now, let’s translate those numbers into space. Consider total space of 1,000 square feet which might be one very large space or several smaller zones, such as four 250 square foot rooms or zones, each served by an evaporator. Here’s the size of the system you would need in each climate zone to cool the space:

  • Zones 1 & 2 (hot): 1,000 x 24-30 = a 22,000 to 30,000 Btu mini-split AC or heat pump
  • Zone 3 (warm): 1,000 x 20-24 = a 20,000 to 24,000 Btu mini-split AC or heat pump
  • Zone 4 (moderate): 1,000 x 18-22 = a 18,000 to 22,000 Btu mini-split AC or heat pump
  • Zone 5 (cool): 1,000 x 16-20 = 16,000 to 20,000 Btu mini-split AC or heat pump
  • Zone 6 (cold): 1,000 x 14-18 = 14,000 to 18,000 Btu mini-split AC or heat pump
  • Zone 7 (very cold): 1,000 x 12-16 = a 12,000 to 16,000 mini-split AC or heat pump

Heating: The chart must be flipped for heating because the cooler your climate is, the larger the heat pump needs to be. It looks like this:

  • Zones 7 (very cold): 1,000 x 24-30 = a 22,000 to 30,000 Btu mini-split heat pump
  • Zone 6 (cold): 1,000 x 20-24 = a 20,000 to 24,000 Btu mini-split heat pump
  • Zone 5 (cool): 1,000 x 18-22 = a 18,000 to 22,000 Btu mini-split heat pump
  • Zone 4 (moderate): 1,000 x 16-20 = 16,000 to 20,000 Btu mini- heat pump
  • Zone 3 (warm): 1,000 x 14-18 = 14,000 to 18,000 Btu mini-split heat pump
  • Zone 1 & 2 (hot): 1,000 x 12-16 = a 12,000 to 16,000 mini-split heat pump

How to Choose Right Efficiency

There are several general rules to guide your choice, and most are just common sense:

  • Space in a cool climate requires a smaller air conditioner than the same space would need in a hot climate
  • Space in a cooler climate requires a larger heat pump than the same space would need in a hot climate
  • A replacement mini-split/ductless system needs less capacity if the space’s insulation has been upgraded or other energy-efficiency modifications have been made
  • The longer you intend to live in your current home or use your current commercial space (and pay monthly energy bills), the more sense it makes to choose a high-efficiency system
  • If you plan to sell soon, then it might not make sense to pay extra for greater efficiency, though listing a very efficient HVAC system on your sales sheet will attract energy-conscious buyers

How efficient should your ductless mini split system be? There are a couple ways to approach it.

By climate: For air conditioning, the hotter/longer/more humid your climate is, the more cost-effective it is to pay more for an efficient system. The same is true for heating in cold climates. The extra cost of it will be paid back in lower utility bills long before the system is retired, and you’ll be saving money every month past that point. Here’s what that looks like using the efficiency of the units available:

  • Zones 1 & 2 (hot): 24 SEER and more efficient air conditioning
  • Zone 3 (very warm): Minimum 21 SEER air conditioning
  • Zone 4 (warm): Minimum 18 SEER air conditioning
  • Zone 5 (moderate): Minimum 9.0 HSPF heating
  • Zone 6 (cool): Minimum 11.0 HSPF heating
  • Zone 7 (cold): Minimum 12.0 HSPF heating

By priorities: Many of our readers put eco-friendly sustainability at the top of their criteria list when choosing how to air condition and heat their space. If that reflects your values, then buying the most efficient mini-split system you can afford will give you peace of mind.

Thank you for using this information to research your mini-split HVAC system purchase. Perhaps your friends and followers on social media would appreciate reading about these ductless systems if you post a link to the information on Facebook, Twitter or other social media.

Mini-split Brand Reviews

Japanese Brands

Chinese Brands

Korean Brands

Mini-split Prices by Brands

Here are ductless split system prices for Standard and Premium brands in four categories. Keep in mind the factors listed above that affect price including air conditioning/heating capacities from 9,000 to 42,000 BTU.

Standard Brands:

  • AC-only single zone and one evaporator: $500 to $2,600
  • AC-only multiple zones and evaporators: $750 to $3,900
  • Heat pump single zone and one evaporator: $900 to $3,200
  • Heat pump multiple zones and evaporators: $1,100-$5,500

Premium Brands:

  • AC-only single zone and one evaporator: $950 to $3,500
  • AC-only multiple zones and evaporators: $1,200 to $5,400
  • Heat pump single zone and one evaporator: $1,550 to $5,700
  • Heat pump multiple zones and evaporators: $1,900 to $7,500

Mini-split AC Prices By Brands

Brands
System Installed
Fujitsu$5,200
LG$4,045
$5,250
Mitsubishi$5,820
Daikin$4,230
$5,450
Samsung$4,030
Pioneer$4,430
$5,750
Gree$3,530
Average$4,520$6,025
Brands
System Installed
Fujitsu$6,040
LG$5,145
$6,200
Mitsubishi$7,450
Daikin$5,690
$6,950
Samsung$5,290
Pioneer$5,490
$6,550
Gree$4,390
Average$5,400$6,790

The price above is based on installing a new mini-split heat pump for a 1700-2200 sf house. In order to offer an equal comparison between each brand. The mini-split system includes the same: 2 * 20 SEER 18K BTU Outdoor Units and 6-7 Indoor Wall mounted Air Handlers.

Mini-split Installation Cost and Extras

How much does it cost to install a ductless AC or heat pump? Here are ductless mini split installation costs and the costs of extras you might need for the project.

Basic mini-split system installation: This step involves installing the outdoor unit, indoor unit or units and connecting the system’s wiring and refrigerant lines and running the drain line.

$1,700 to $2,300 Installation of a single-zone mini-split system

$2,000 to $3,400 Installation of a multi-zone mini-split system

Installation materials: These include insulated refrigerant lines, drain line and wall sleeve:

$130 to $375 Installation materials are sold in kits with lines from about 25’ to about 100’

System inspection: You might have to pull a permit for your new ductless split system if the building department in your community requires one

$0-$125 New mini-split system inspection

Controls including Thermostats: There’s a wide range of controls available to suit your preferences. Depending on the system, your options might include a handheld remote, the wall-mounted wired thermostat in non-programmable and programmable models, a wireless Wi-Fi programmable control and smartphone app that works with a Wi-Fi control to allow you to monitor and adjust your system from anywhere.

Free Smartphone app

$20-$50 Handheld remote, if not included with the system

$15-$100 Non-programmable wall-mounted thermostat

$25-$124 Basic programmable thermostat

$135-$375 Wi-Fi programmable thermostat

For more info about installation cost, read our Ductless Air Conditioner Installation Cost

Submitted Prices and Reviews From Visitors

Brand & Model & Size
Home Size
$3,200Pioneer Wall-Mounted ACFort Worth, Texas2550 sqft
Last summer, our mini-split AC unit proved useless against the sweltering heat, which is why we decided to upgrade to the more powerful Pioneer 12000 BTU 230V mini-split system a few months ago. The unit is notably more industrious than the one we had although this comes at a cost: the whirring of the fan is a bit louder. Also, I noted a few accuracy issues with the inverter. The system keeps lowering the temperature of the room beyond the preset value (I had set it at 75 before I left for work. A few hours later my wife called complaining that the thermostat read 73). I intend to make calls to rectify this since I read that it is a common issue that stems from a faulty motherboard. Despite this minor hiccup, however, the unit runs well with noise levels that are bearable and smooth functionality. Once my problem is fixed, I would definitely recommend this to my friends.
$5,500Friedrich MC12Y3JMBoston, Massachusetts2800 sqft
I simply can’t say enough good things about the Friedrich MC12Y3JM Ductless mini-split AC. The lower price tag came with a lower BTU (12,000) but that was a sacrifice worth making in my opinion since it’s more than enough for my small condominium. The highlights of this unit are that it offers 4-way cooling and air flows that feel very natural (you won’t feel like you’re being blasted by air from an open window). Installation was swift, highly efficient, and very professional going by how excellently my unit is still running 6 months after installation. This is a purchase I am not likely to regret in the near future and I would totally recommend this unit for other small-apartment dwellers.
$6,950Senville Wall-Mounted ACLong Island, New York2340 sqft
I bought the Senville SENL-12CD mini-split AC about a year ago and it is still running well as new save for a few parts that have needed replacement over the past few months. One thing I and other buyers of this unit love are how quiet it is. We decided to go with professional installation mainly because the instructions provided in the manual are very unhelpful. Everything is vaguely described and surprisingly, the customer support will only get you more confused. Once properly installed, however, there is little we can complain about. Great unit overall!
$7,950MRCOOLGreen Bay, Wisconsin3,000 sqft
Immediately we found out that the MRCOOL 24,000 BTU ductless mini-split heat pump came with Wi-Fi connectivity that allowed us to easily control it via our smartphones, we were sold! The unit is touted as one of the easiest to install in the market but we’re the farthest thing from DIYers. Our busy schedules only allowed us a few hours to supervise the installation of the unit by professionals one afternoon, which was fairly straightforward. Since the installation was completed 3 months ago, we haven’t had any hiccups with what we think is an excellent ductless heat pump system that is well worth the buy.
$6,550MRCOOLAspen, Colorado3,400 sqft
Initially, we had wanted to go for the 24,000 BTU MRCOOL but my brother (who is admittedly more tech-savvy) talked me down to the 18,000 BTU unit, which he thinks is more than enough for my quaint little bungalow. Installation was an absolute breeze (I would have done it myself but I was offered free installation by the store I bought it from) and done fairly well, save for a few missing screws which I replaced as soon as the technician left. The ductless heat pump does exactly what it says it will, something I can attribute to the refrigerant it uses. I also enjoy how easy it is to set the temperature on the go via an app on my phone. The future really is here, guys, and this is the ductless mini-split heat pump you should be looking at.
$7,800DaikinEssex, Vermont2,200 sqft
I needed a powerful mini-split heat pump for my home in Essex and the 24,000 BTU Conair unit came highly recommended. The noise levels are bearable when the unit runs on medium to high speeds but once the speed is lowered, it is ghostly-quiet. The air system keeps my house warm enough on frigid nights and is delightfully easy to adjust during hot afternoons. The installation job was also very professional and the unit looks like it will last a few more years without any tinkering or repair jobs necessary.

How to Get the Best Mini-Split AC/Heat Pump Prices?

  • Firstly, keep in mind that installation quality is always the most important thing for residential HVAC project. So never sacrifice contractor quality for lower price.
  • Secondly, remember to look up the latest tax credit and rebates.
  • Thirdly, ask for at least 3 bids before you make the decision. You can click here to get 3 free estimates for your local contractor, and this estimate already takes rebates and tax credit into consideration and filter unqualified contractors automatically.

At last, once you chose the right contractor, remember to use the tactics from this guide: Homeowners Tactics When Negotiating with HVAC Dealer to get the final best price.

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Finding a Ductless Heat Pump Contractor

Finding a good contractor to install a ductless heat pump is a bit more difficult than finding someone to install or service a forced air HVAC system, but it’s well worth it. Proper installation can mean the difference between cost savings and energy waste. This is especially for the refrigerant lines, where proper insulation is critical.

Probably the best way to find a certified contractor is searching from the website of the manufacturer of your preferred ductless heat pump. Fujitsu and Mitsubishi are the major manufacturers, and both companies have contractor search engines available. Some states and utilities also have a list of contractors certified to these systems, so check with your utility company.

As with any home improvement project, due diligence is always good practice before hiring a ductless heat pump installation contractor.

More Words About New Ducted Mini-Split

Mini split is a term that has been synonymous with ductless for decades, but now mini splits are produced for ducted use too. Most of the brands are making ducted systems. This includes LG, Mitsubishi Electric, Daikin, Pioneer, Panasonic, Gree and Fujitsu.

Ducted mini split systems are preferred by home and business owners that don’t want a conspicuous wall, ceiling or floor unit competing with their décor.

These systems can be installed as retrofits in homes and businesses, making use of the ductwork.

Ducted Mini Split Options

As with ductless systems, ducted mini splits are available in single and multi-zone systems.

Single ducted mini-split system: A single indoor unit is served by one outdoor unit. There are two common installation options. First, the indoor unit can be installed in a wall between studs and covered with a grill made by the manufacturer for the purpose. The second option is to install the unit in the wall or floor ductwork near an air grate.

Multi-zone ducted mini-split system: These systems feature one large outdoor unit and two to eight indoor units. The indoor air handlers are installed in the wall or in existing ductwork near existing grates, so air is pushed a very short distance. Far less airflow is required with this type of installation than in a standard split system that forces air from one central location to multiple grates.

The benefit of using a very efficient ducted mini-split system vs. a low-efficiency standard mini-split system is that the unit can be smaller.

Matthew Lacey, the senior product manager for Daikin North America, says “With a ducted system, it may be possible to reduce the size of [a 4-ton] system to a 3-ton multi-zone system with one condensing unit outside connected via copper tubing to individual [indoor units] that serve each of the rooms.”

Thermal Zone Mini Split Parts

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