Though something of a misnomer, VRF and mini split heat pumps are commonly referred to as “ductless units.” These systems are much more versatile today than they were just five years ago. It’s hard to ...

This article first appeared in Engineered Systems. View the original post in its entirety here. Variable refrigerant flow (VRF) systems were first introduced to the HVAC community in Japan in 1980 as ...

Several factors are driving the popularity of this versatile technology in the selection of HVAC for student housing retrofits and group-up projects. Student comfort, system management and sound ...

Seeking increased business opportunities, contractors can look to variable refrigerant flow (VRF), a growing segment in the HVAC marketplace, as an added piece to their business arsenal. Why VRF? “If ...

Johnson Controls-Hitachi Air Conditioning has launched a new residential heat pump system combining an air source heat pump (ASHP) and a gas furnace. “When temperatures are extremely low, most heat ...

Heat exchange efficiency has long been a bottleneck in VRF system design. The V9 breaks through this limitation with its 310° G-type heat exchanger that maximizes heat exchange efficiency under the ...

Choosing an appropriate cooling solution for one’s space, whether residential or commercial, involves both technical ...

HONG KONG, March 23, 2026 /PRNewswire/ -- As cities push toward net-zero emissions, Hong Kong is tightening building regulations and accelerating retrofits under the BEAM Plus framework. Higher ...