A. O. Smith launches its newest hybrid electric water heater, the Voltex 50-gal. heat pump as an extension of the existing Voltex line.

The Energy Star program was restricted to residential water heaters but has expanded its scope this year to include larger units.

Colorado is introducing a category for Home Energy Rating System-rated homes into its multiple listing service.

Denmark-based water pump manufacturer Grundfos broke ground April 16 on the site of its new North American headquarters in Downers Grove, Ill., a Chicago suburb.