AVweb Tanis engine preheaters are available for a wide range of piston and turbine applications. Ohio-based Hartzell Propeller has acquired the assets of Minnesota’s Tanis Aircraft Products, which is best known for its engine preheat systems for light airplanes and helicopters. The new acquisition will operate under the umbrella of Hartzell’s heating products, which will now include not only propeller de-icing systems, but preheating technology for piston and turbine engines, helicopters, batteries, avionics and cabins. Hartzell Propeller President JJ Frigge said, “We continue to look for opportunities to make direct, long-term investments in value-added manufacturing companies that complement our existing portfolio or leverage core competencies.”