Older homes are part of what gives Belleville, Illinois, its character. But homes built long before modern central heating and cooling became standard can also present unique HVAC challenges.
Some older homes have little or no existing ductwork. Others have additions, upstairs bedrooms, converted spaces, or rooms that are consistently difficult to keep comfortable.
For these situations, a ductless mini-split may provide an effective way to add heating and cooling without installing an extensive new duct system.
A ductless mini-split is a heating and cooling system that doesn’t rely on traditional ductwork to distribute conditioned air.
A typical system includes an outdoor unit connected to one or more indoor units. The indoor units deliver heated or cooled air directly into the rooms or zones where they’re installed.
Depending on the system, indoor units may be mounted on a wall, ceiling, or in another appropriate location.
Because mini-splits don’t require a traditional network of supply and return ducts, they’re particularly useful in homes and spaces where adding conventional ductwork would be difficult.
Many older Belleville homes were constructed before central air conditioning became common.
Retrofitting these homes with traditional ductwork can sometimes require modifications to walls, ceilings, closets, or other parts of the structure.
A ductless mini-split installation can provide another option.
Rather than routing large ducts throughout the house, the indoor and outdoor equipment is connected through a much smaller opening for the necessary refrigerant lines, electrical connections, and condensate drainage.
That can make ductless equipment particularly attractive when homeowners want modern heating and cooling while minimizing major changes to an older home.
The most obvious advantage is right in the name: ductless.
If your home doesn’t already have suitable ductwork, a mini-split can eliminate the need to add an entire traditional duct system simply to provide air conditioning or supplemental heating.
This can also make mini-splits useful for:
Even homes that already have central HVAC may use a mini-split to address a particular area that isn’t adequately served by the existing system.
One of the most useful features of a mini-split system is the ability to create separate comfort zones.
With a multi-zone system, different indoor units can serve different areas of the home. This allows homeowners to adjust temperatures based on how those spaces are used rather than relying entirely on a single thermostat.
That can be particularly helpful in older homes where upstairs rooms, additions, or rooms with different sun exposure don’t stay at the same temperature.
Ductless systems avoid the energy losses associated with distributing conditioned air through traditional ductwork.
Many modern mini-splits also use variable-speed inverter technology that allows the system to adjust its output based on the heating or cooling demand rather than operating only at full capacity.
Actual energy savings depend on the home, existing HVAC equipment, system selection, installation, temperature settings, and how the equipment is used.
Efficiency is an important benefit to consider, but proper equipment selection and installation remain essential.
Many ductless mini-splits are heat pumps, which means the same system can provide both cooling and heating.
During summer, the system transfers heat out of the home. During cooler weather, the process reverses to provide heat indoors.
This makes mini-splits a versatile option for homeowners who want year-round temperature control in a particular room, addition, or larger portion of the home.
Ehret also installs and services other heat pump systems for homeowners interested in electric heating and cooling options.
Modern ductless systems are designed to operate relatively quietly, which can make them appealing for bedrooms, home offices, living rooms, and other frequently occupied spaces.
Actual sound levels vary by equipment and operating conditions, so homeowners who prioritize quiet operation should compare specifications when selecting a system.
Installing traditional ductwork in an existing house can be a substantial project, particularly when the home’s original design didn’t account for it.
Mini-splits generally require much less space to connect indoor and outdoor equipment.
Installation still requires professional planning. The contractor needs to consider equipment sizing, indoor-unit placement, outdoor-unit location, condensate drainage, electrical requirements, and other factors.
But for the right home, a ductless system can provide heating and cooling without the extensive ductwork associated with a conventional forced-air system.
Ductless mini-splits include filtration designed for their particular equipment, but they shouldn’t automatically be viewed as a complete indoor air quality solution.
Filters need to be cleaned or replaced according to the manufacturer’s recommendations to maintain proper airflow and system performance.
If dust, humidity, odors, filtration, or other air concerns are a priority, Ehret can also discuss dedicated indoor air quality solutions that may complement your HVAC system.
Mini-splits offer several advantages, but they aren’t automatically the best solution for every house.
A professional HVAC evaluation can help determine whether ductless equipment makes sense based on:
Some homes may benefit from a single-zone mini-split, while others may need multiple indoor units or be better served by another HVAC configuration.
You don’t necessarily need to replace your entire HVAC system to benefit from ductless equipment.
Mini-splits can be especially useful when one area of the home consistently causes comfort problems.
For example, a finished attic that becomes extremely warm during summer or an addition that never seems to match the rest of the house may be a candidate for its own ductless system.
Instead of continually adjusting the thermostat for the entire home, a dedicated zone can address the comfort needs of that particular space.
If you’re trying to improve comfort in an older Belleville home, adding heating and cooling to a space without ductwork, or looking for an alternative to a traditional HVAC system, a ductless mini-split may be worth considering.
Ehret Inc. provides professional mini-split installation in Belleville and throughout the Metro East. Our HVAC team can evaluate your home, determine the appropriate system size and configuration, and help you decide whether ductless heating and cooling fits your needs.
Schedule a mini-split consultation with Ehret Inc. or call (618) 233-1018 to get started.
