For many years, R-22 was the refrigerant of choice for commercial and residential air conditioning and heat pump systems. Supermarket refrigeration systems, industrial centrifugal chillers, and ...

As mentioned earlier, most new systems will be manufactured with R-410A. However, the question of what is the best retrofit refrigerant blend for existing R-22 systems is often asked by technicians ...

After the Northridge earthquake in 1994, significant steps were taken to upgrade building codes. Many of those put in place a couple of years after the quake. Nearly two decades later, the City of Los ...

Vehicle idling, worksite noise conditions and emissions regulations are some of the most pressing challenges the work truck industry is navigating today. Sustainability and community comfort are some ...

After decades of false starts and stumbling progress, California cities’ efforts to strengthen buildings that could collapse in a massive earthquake may take a leap forward in coming weeks, as Gov.

NEWPORT, UNITED KINGDOM - APRIL 21: The roof tops of houses in residential streets can be seen on April 21, 2008 in Newport, Wales. A poll by researchers Fitch has revealed 10 "sub-prime" blackspots ...

Homeowners in the East Bay are getting a chance to learn how they can do retrofitting work on their residence themselves while taking advantage of state grants available to help cover the cost of ...