Ductless systems vs. central HVAC
The term Ductless Systems means these comfort systems do not utilize duct to deliver/distribute conditioned air. For perfect climate control one needs a unit in every room. Ductless systems allow to achieve unmatched energy savings, and as mentioned before – perfect temperature control. A central system that uses ducts has so many cons, that having a “machine” on a wall is not so bad. Now about a typical central system:
- Ductwork collects dust and dust mites, then “spills” the same in the air we breathe. It is costly to clean the ductwork, and it will never be as clean as we all wish (it is like sleeping on a pillow case that was laundered a year ago)
- Normally a central blower is installed in the basement, so the main duct goes vertically up to the first and maybe 2nd floor of the house, right? When the system is off, warmer air rises within the duct to the top of the house, so it is always hotter on top floors, thus creating uneven temperatures throughout the house
- A central ductwork distributes air to several rooms at once, with no regard if a particular room does not need to be cooled or heated. Why condition a space that you do not need to condition?
- Any ductwork is built with a resistance to airflow (to maintain pressure, otherwise it will not work). So the fan must work harder to overcome that resistance, this means more powerful motor, and wasted energy
- This list can go on…
A ductless system takes air from a particular room, and discharges conditioned air into the same room! No resistance to air flow (no loss), slows down if the room does not need much conditioning (heating or cooling), no duct, and no mites, no air leakage. Every unit is computer-controlled (just do not forget to clean filters once in a while). Ductless systems are taking over the world’s HVAC industry, because it is the best thing since sliced bread.