One way is to group them into "ducted" or "ductless" heat pumps. "A ductless system is one that has no duct attached," said Edison Dika, a senior energy consultant at the Center for EcoTechnology.

Columnist Dana Wilde details a multi-year journey of figuring out how best to heat his home, from a 'Frankenstein monster' ...

--(BUSINESS WIRE)--Mitsubishi Electric Trane HVAC US LLC (METUS), a leading supplier of Ductless and Ducted Mini-split and Variable Refrigerant Flow (VRF) heat pump and air-conditioning ...