For all of its technology, the UltraSaver90Plus is surprisingly easy to operate. The built-in control panel lets you operate the wall furnace manually or set the temperature so the system maintains the desired temperature using its built-in thermostat. Thanks to its super-high efficiency the US90 uses widely available 2-inch PVC pipe or Empire approved Poly pipe for venting. Using PVC requires just a fraction of the material cost and labor involved in steel vent pipe. PVC pipe fits easily inside a standard stud wall, eliminating the additional framing and clearances required for metal vent pipe. Because the US90 has a power vent, the 2-inch PVC pipe can run up to 50 feet to terminate vertically through the roof or horizontally through an exterior wall{inside the UltraSaver90Plus Creating Heat The power-vent blower draws in an ideal charge of air to support combustion. The high-efficient in-shot burners generate the heat. The two-stage heat exchanger consists of a large-diameter tube and multiple small-diameter stainless steel finned tubes. Each transfers progressively more heat. Cooled exhaust exists the heater via PVC (or Empire approved Poly vent pipe) at 110 to 120 degress. Circulating Heat The blower pulls room air (Blue Arrows) into the top of the heater and forces it across the heat exchanger. The warm air exists throught the bottom louvers at the front of the heater. {Features The most efficient wall furnace available Exceeds 90% efficiency Clean, Modern cabinet fits your decor Cool-Touch cabinet prevents accidental burns Vents with low-cost PVC or PolyPro venting Simple control system is easy to learn and easy to use Works with most programmable thermostats Works at high altitude Whisper quiet operation Made in U.S.A. {Safety Features Sealed two-stage heat exchanger protects indoor air quality Electronic hot-surface ignition eliminates the standing pilot light PVC (or Empire approved Poly) venting system stays cool to touch, passes all high-wind test protocols Microprocessor continuously monitors a
