Allmand Brothers has upgraded its Max-Heat portable heater with higher static pressure and longer ducting. The Maxi-Heat features twin heater units capable of producing a maximum of 1,010,000 BTU and can be operated independently. The new fan-motor combination increases the static pressure from .5 wg to 1.5 wg, able to accommodate up to 110 feet of 16-inch ducting, up from 40 feet of ducting on the previous model. The improvements increase the efficiency and productivity of the heater when used for cement curing, equipment pre-heating and general heating applications.