Modine’s new Model BTP gas-fired, power-vented unit heater features the same functionality as its PTP unit and has been upgraded with factory installed blower assemblies, the company says. The BTP is 82% thermally efficient, available in seven sizes ranging from 150,000-400,000 Btu/h, has a standard 409 stainless steel primary heat exchanger and is ELT certified for commercial and industrial use in the U.S. and Canada.