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The PRH Series plenum-rated heaters from Marley will be sold under the Berko and QMark brands. The heaters are designed for concealed and plenum space applications, such as those found in high-rise buildings, lobbies and bathrooms and in between suspended ceilings in garage locations, as well as for use in pre-heating outside air.
The heaters offer a blower-delay feature and multiple heat-rise selections, with heating ratings from 3 to 15 kW. The maximum outlet air temperature is 200°F at a static pressure of 0.2 in. The heaters are also designed for quiet, uniform heating with steel-finned heating elements, acoustic fiberglass insulation and efficient, forward-curved centrifugal blower. Available voltages are 208, 240, 277 and 480.