•M&G DuraVent(Vacaville, Calif.) announced its PolyPro single-wall, concentric, and flex has gained approval fromBradford White(Ambler, Pa.) for all Power Direct Vent tank-type water heaters that accept PVC, CPVC, or ABS venting.

• Testo Inc. (Sparta, N.J.) appointed Emily Ruffing as marketing communications specialist, portables products division.

Eric Bratton• CosaTron (Tampa, Fla.) named Eric Bratton (right) president, effective immediately.

• Mainstream Engineering Corp. (Rockledge, Fla.) has been awarded a contract from the Defense Advanced Research Projects Agency (DARPA) to develop a new, high-efficiency refrigeration compressor for compact thermal control and refrigeration applications.

• Viessmann Mfg. Co. Inc. (Waterloo, Ontario, Canada) secured North American sales support, installation, and service for NextEnergy Inc.’s (Elmira, Ontario, Canada) high-temperature output KWT heat pumps.

Sharon RobertsRuth KingJeffery Gitomer• Nordyne (O’Fallon, Mo.) introduced NordyneU, an on-demand, online video-training option featuring HVAC trainers Jeffery Gitomer (left), Ruth King (center), and Sharon Roberts (right).

Publication date: 3/18/2013