After World War II, air conditioning manufacturers in the U.S. were excited to cash in on Japan’s sweltering summers. That’s when air conditioners were first introduced to Japan.

The Japanese absolutely loved the idea of Air Conditioning, but...

Home and building owners in Japan were deeply disappointed. Mitsubishi’s early A/C systems could not be used in Japan for a few interesting reasons.

Japanese homes were famously small, thin walled and tightly clustered together. Not a good match for loud, droning AC’s and their massive, bulky duct work.

Also, Japan’s energy costs were sky high then. That alone meant doom for the earlier, energy hogging AC’s.

Japan’s response? Revolutionize the Air Conditioner

Again, the Japanese adored the idea of AC’s, so their manufacturing engineers quietly went to work.

In 1959, Mitsubishi finally succeeded in reinventing air conditioning. They introduced the Ductless Mini Split Heating and Cooling System.

(Almost) All the world loved it

Mitsubishi’s “split” technology enabled each room to have its own temperature zone, eliminated bulky duct work, ran quieter and was much more energy efficient.

In time, the popularity of these unique systems spread across Europe and other parts of the world...but not here in the United States. Distributors said no.

Mitsubishi mini splits finally make it in America

Decades later, Mitsubishi’s AC marketers became savvier at directly educating U.S. consumers. The response was dramatic. Now, hundreds of thousands of ductless mini splits are sold in the U.S. every year.

Continuous improvement

Manufacturers continuously advanced their ductless technologies - with Mitsubishi leading the pack. The latest systems are far more energy efficient. They’re quieter still, run cleaner and they meticulously filter out allergens.

When reviewed, HVAC contractors and homeowners consistently give high marks to Mitsubishi’s ductless systems.

Total Comfort Mechanical has installed over 1,000 Mitsubishi mini splits

...and requests continue to surge because Mitsubishi systems

• Run quietly
• Conserve space
• Use less energy
• Save money
• Are highly reliable

Best uses for ductless mini splits

• Older homes without space for duct systems
• New additions
• Underutilized rooms
• Garages, basements and attics

Picture your home with quiet, ductless, zoned heating and cooling

If that looks good to you, we’ll pass along financing and tax credit information to help you save money. We’ll expertly plan and affordably price custom solutions for your home or business.

Our expertise increases with every installation. You’ll love experiencing our team’s expert workmanship, but not as much as you’ll love the quiet and air quality of your state-of-art system. 

Contact us at totalcomfort@live.com or call (781) 697-9016 

What is a Ductless Mini-Split air conditioning system?  Only one of the hottest-selling cooling systems in the country - Massachusetts included!  A trend that took Europe by storm and is now heading westward, these modern, energy-efficient and stylish air conditioners have become such fast sellers that Mitsubishi is challenged to keep up with the growing demand. 

Mitsubishi, the world’s top-selling brand of ductless cooling and heating systems, experienced a complete sell-out of its 2013 U.S. inventory well before the end of last year.  This caused limited availability and back-orders with Mitsubishi Diamond HVAC specialists throughout the United States.

Nearly six weeks ago, the out-of-stock inventory was made available again and has been flying off the shelves ever since. “Heating and air conditioning specialists” Total Comfort Mechanical of Burlington, MA happily announced the new 2014 mini-split systems were back in stock and contacted their customers to arrange installation to those that had been anxiously awaiting their new Mitsubishi ductless mini-split systems. 

The ductless mini-split wave is keeping HVAC contractors extremely busy. "We can hardly keep up with the demand", said Total Comfort Mechanical owner Wendell DePaiva. "We've had so many requests for ductless installs that we completely wiped out our inventory in just a few weeks," DePaiva said, "but we have already restocked and are ready to install."  

It seems Massachusetts residents are some of the most energy-conscious the country - the U.S. Green Building Council recently ranked the state #4 in the top 10 list of states leading the nation in green building.

How Ductless Mini-Split Air Conditioners Work

Like central air conditioners, ductless units have a split design and don't require a complicated system of ducts. The split system (also called a mini-split, ductless split, or duct-free system) has at least one indoor unit in the home or office (this is the evaporator) and one outdoor unit (the condenser).  Line sets, which are copper tubes of refrigerant, are run to the indoor unit from the outdoor unit.

The indoor component can be mounted on the ceiling or the wall and are extremely quiet when in operation. Read more about ductless ac systems here.

With the booming popularity of ductless systems, the product selection is getting wider - many electronics manufacturers now offer their versions of ductless appliances. Considering that many smaller brand names typically don't specialize in heating and cooling solutions, it's important to note that it can be a challenge to find qualified technicians to install and service them. 

The specialists at Total Comfort Mechanical recommend sticking with a trusted, industry leader that provides a solid warranty on their product and has a network of certified and trained Diamond Contractors to perform the installation and service.  "It's smart to get a few estimates from qualified and certified HVAC contractors before making the investment," DePaiva advises.  

Check with your local Better Business Bureau or other local chamber organizations to learn about the reputation of the heating and air conditioning contractors in your area. Burlington MA residents and neighboring MA cities can request a quote or more information on ductless AC solutions here or the following link:

How to keep your central air conditioning system running efficiently

Our customers and subscribers have asked for suggestions on how to reduce the energy costs associated with home cooling during the summer months. To help, we’ve compiled this list for easy reference, and to easily share with friends and family, too!

Looking for ways to beat the heat? July has been a scorcher in Burlington, and neighboring Massachusetts areas it looks like August will bring more of the same.

Try these tips to keep your air conditioning system running efficiently:

1. Replace filters regularly! This is one of the easiest things to do yet one of the most commonly overlooked. Filters should be replaced monthly, so make it a habit by keeping a supply of filters on hand.
2. Set your thermostat and leave it. Pick a temperature that you are comfortable with (perhaps 75°) and keep it at a constant setting. Turning the thermostat down doesn’t affect the temperature of the air blowing out of your vents. It makes the system run longer, not colder.
3. Keep curtains, drapes and blinds closed, especially on the west-facing side of your house.
4. Shade your air conditioner. Your unit works harder if it is in an area that receives full sun.
5. Don’t block the AC unit. Keep air flow free from obstructions.
6. Keep household appliances that produce heat far away from your thermostat. You don’t want an adjacent TV or water heater to contribute to a false thermostat temperature.
7. Caulk around window frames to seal any leaks and check weather stripping.
8. Invest in a few good ceiling fans or some smaller portable fans. Fans provide evaporative cooling as you sweat. If you buy a ceiling fan with lights, opt for those with Compact Fluorescent Lamps (pin-type) CFL’s, which last up to 15 times as long as incandescent bulbs.
9. If your home has a fireplace, don’t send cool air up the chimney – close the damper and shut glass doors.
10. Schedule regular service on your air conditioning system. Your system’s refrigerant charge needs to be checked annually, and the AC unit needs to be cleaned professionally. A/C Maintenance ensures your system is running at peak efficiency.

If you are concerned about obtaining optimal efficiency from your Air Conditioning system, be sure to schedule an A/C system maintenance check with your HVAC contractor. A professional will check multiple factors to ensure all air conditioning system components are operating properly, and that the system is meeting the manufacturer’s expectations for efficiency.

Mr. Slim Ductless Mini Split AC installed

Ductless air conditioning is quickly gaining popularity in the US, as it is in Europe and Asia over recent years – for many reasons. A Ductless (mini-split) AC unit is an efficient and affordable alternative to the traditional central heating and air conditioning systems that require a network of duct lines to circulate air.

In older homes that have no ducts or a newly-built home that doesn’t use forced-air heat (with no ductwork), installing a central A/C system can be extremely costly. Opting for a ductless air conditioner or even multiple units to cool different zones in the home is a more affordable solution.

Multi-zone outdoor units connect more than two indoor units, providing individualized comfort control to different areas within the home. For example, the Mitsubishi Ductless outdoor multi-zone units can be configured for as many as four or more individual ductless air conditioning units. Mini-split systems also are excellent for sun rooms and homes with hydronic heating.

Ductless indoor units (also known as ductless mini-splits) can also be controlled with convenient remote controls – both wireless and wall-mounted programmable touch-screen thermostat controls and WI-FI.

7 benefits of Ductless Air Conditioning:

A multi-zone ductless AC installation in Lexington, MA

1. Energy- efficient technology, Environmentally-friendly
2. Easy to install & operate
3. Compact in size
4. Quiet Operation
5. Allergen Filtration
6. Precise and total Comfort Control

And number 7, they save money. Ductless air conditioning uses less energy than traditional air conditioning systems, which can dramatically reduce your energy usage. For zoned systems, you can control individual room temperature and only use energy where and when you need it!

Consult with an HVAC professional to determine if a ductless air conditioning system is a viable option for your home and to get recommendations on which product options are right for you. Diamond Contractors that specialize in ductless A/C system installation and trained experts like those at Total Comfort Mechanical in Massachusetts can give you a quick estimate and also find out if any other rebates and tax credits are available.