A ductless heat pump, also known as a ductless mini-split system or ductless air conditioning, is a HVAC system that, as its name suggests, does not require the use of ducts to operate.

The mini split system relies on a complex heat exchange process involving the cyclical condensation and vaporization of the hot air that the indoor unit removes from the living space.

Mini-split systems have been gaining in popularity in recent years because of their energy efficiency, size, ease of installation and the ability to zone the different areas of the house.

The Oak Ridge National Laboratory (ORNL) High-Ambient-Temperature Evaluation Program for low-global warming potential (GWP) refrigerants aims to develop an understanding of the performance of low-GWP ...

At the forefront of our new mini split launch 2025 is the R-454B multi zone mini split, offering unmatched flexibility for large homes and unique layouts. Custom climates, five zones at a time.

In this troubleshooting situation a technician has responded to a complaint of “not cooling” on a six-year-old R-410A split system that employs an upflow gas furnace indoor air handler and a ...

The refrigerant is piped to condenser/evaporators in each room, allowing greater control over temperature in each room. Because it requires more condenser/evaporators, mini-split systems are ...

Della Day is the annual tradition of unveiling innovation and comfort. With so many innovations on the horizon, home comfort will be better than ever.