Return Air With Vaulted Ceiling

I am having a modular frame home with a walkout basement built and met with one HVAC contractor about design with ERV in Zone 7B. There are 3 modules, 1526… I am having a modular frame home with a walkout basement built and met with one HVAC contractor about design with ERV in Zone 7B. There are 3 modules, 1526…Read MoreGreenBuildingAdvisor