CHICAGO — Rooftop heating and cooling equipment is a well-established and widely used technology, but that doesn’t mean the sector is standing still. Rooftop units, like most HVAC equipment, are constantly evolving to be more reliable, more efficient, and easier to control than ever before.
Cambridge Engineering Inc. introduced the Cambridge SA-Series of Blow-Thru® direct gas-fired space heaters at the show. The new line uses the same technology as the larger, high-efficiency Cambridge S-Series, but is sized for smaller applications. Utilizing 100 percent outside air for efficient, direct gas-fired heating, these heaters employ a proprietary stainless steel burner mounted downstream of the blower. The high-velocity blower achieves a 10:1 induction mixing ratio that minimizes stratification and increases throw. The SA-Series achieves 100 percent combustion efficiency and provides 160°F maximum allowable output temperatures. The units can be mounted thru-wall, under roof, or on a rooftop.