Schedule an Appointment

Send Message

Subscribe to our RSS Feed Articles & Tips

Can Ductless Systems Be Used as a Whole-House Heating and Cooling Solution?

Ductless mini-split systems, developed by Mitsubishi Electric during the 1970s, have long filled the bill of home and business owners in need of energy-efficient and versatile air conditioning solutions, providing supplemental heating and cooling for reconfigurations and new additions.

Now, with the advent of high-efficiency components and advanced features, the ability for ductless systems to meet the demand of whole-house heating and cooling projects using modular multi-split systems is increasing their use in new energy-efficient homes. If you are reconfiguring your home or undertaking new-home design, find out if a ductless configuration can be installed as your whole-house heating and cooling solution.

Why Ductless Heating and Cooling Makes Energy Sense

The cost of heating and cooling the average Virginia home accounts for nearly half of household energy expenditures. So, it comes as no surprise that homeowners are increasingly using energy-efficiency and energy-conservation measures to help reduce their energy budgets. However, the typical whole-house HVAC system consists of many components that are prone to wasting energy, and may compromise efficiency efforts, including:

  • Energy losses in the ductwork system from air leaks, poor design and inadequate insulation.
  • Unbalanced airflow from supply outlets to return grilles create hot/cold spots, hinder system function and contribute to poor indoor air quality.
  • Over-sized cooling systems, heat pumps and furnaces produce uncomfortable, inefficient and noisy quick-cycling.

With the performance and efficiency flaws inherent in forced-air HVAC systems, more homeowners are seeking practical alternatives. By design and expert installation,Mitsubishi Electric ductless systems with high-efficiency components eliminate most of the efficiency flaws of forced-air systems, while delivering ample heating and cooling with the following benefits: 

  • In addition to desirable SEER and HSPF (cooling and heating efficiency ratings), there are no energy dollars wasted on potentially inefficient ductwork.
  • Zoned heating and coolingis not affected by closed doors or other airflow obstructions in order to provide comfortable temperatures throughout the home.
  • Ductless systems with variable-speed inverter compressors continuously adjust heating and cooling output to match heating and cooling load. Over-sizing a ductless system, common with central HVAC systems, does not occur with expert installation by a licensed and trained Mitsubishi Electric Contractor.
  • Advanced onboard indoor air quality components keep components clean and operating more efficiently, in addition to providing indoor-air filtration and purification.

Whole-House Heating and Cooling Solution

Since their introduction decades ago, ductless systems have proved time and again that energy-efficient operation while offering a host of practical heating and cooling applications can go hand in hand. Now, in more recent years, the development of high-efficiency components with superior performance have made ductless whole-house heating and cooling an attractive option.

Ductless multi-splits are available in four-ton capacity systems with as many as eight indoor air handlers for each outside compressor/condenser unit. If more heating and cooling capacity is required, you may configure a modular multi-split system with two or more compressor/condenser units, and multiple indoor air handlers to meet all your needs efficiently and comfortably. These are just a few of the possibilities of high-performance ductless systems:

  • Ductless systems offer the flexibility to extend to areas outside the living spaces, such as a workshop, guest house or pool house outbuilding.
  • You may opt to heat and cool a garage for extended comfort and to protect stored household items.
  • Providing heating and cooling to sun rooms, home offices, retrofitted attic and basement space is a one- or two-day project with a ductless system, rather than a multi-step process spanning several days for extending ductwork.
  • Mix and match the size of evaporator coils to precisely match heating and cooling load in each zone of your home.

Home Preparation, System Sizing

One of the surest ways to maximize performance of your new whole-house ductless system (and any other HVAC system) is to button up your home by sealing cracks and other air leaks, and installing adequate insulation in all the right places. A “leaky” home invites drafts and higher energy bills. Air infiltration through leaks around windows, doors, piping and even the attic hatch can play havoc for occupants with respiratory issues.

Versatile component sizing to match heating and cooling requirements for each zone delivers maximum home comfort and energy efficiency. For best results, your Mitsubishi Electric Contractor should perform an energy audit of your home to identify flaws and inefficiencies in the home's shell and insulation barrier. Follow up with efficiency upgrades, and you'll be ready for the new whole-house ductless installation.

If you would like more information about whole-house heating and cooling with ductless systems, contact us to speak with your local Virginia Mitsubishi Electric Contractor today.

Back to Articles