Plan Your Ductless Split System Project

Plan How to Upgrade to Ductless Split System Carefully

Generally, GreenHomes recommends improving your home’s insulation levels and reducing your home’s air leakage rate prior to installing high-efficiency heating/cooling (HVAC) equipment. Why does this order make a difference. First and foremost, improving insulation and reducing air leaks results in a tighter home. As a result, this helps more accurately match the ductless split (or any HVAC) system size with heating/cooling demands.

Frequently homeowners plan for the installation of an upgraded ductless split system. Conversely, typically many homeowners do not plan a swap out of the system. Additionally, as noted, always consider properly air sealing and insulating you home. This results in lower heating and air conditioning costs following a completed ductless split system installation.

When installing a new ductless split heating/cooling system in your home, GreenHomes recommends the following steps:

  1. Air seal and insulate your home whenever possible as part of the heating/cooling unit install.
  2. Ensure the technician follows the manufacturer’s sizing calculation procedure during the installation. Additionally, following ACCA Manual J heating/cooling load calculations helps determine both the heating and cooling loads of the room(s). Select select the size of the ductless split system based on the heating/cooling load estimates.
  3. Select a high-efficiency heat pump (15 SEER minimum for cooling and an 8.5 HSPF minimum for heating) as part of your upgrade.
  4. Don’t forget - Proper maintenance of your new ductless split system is important!