Novus 300 HRV

Credit: Zehnder America, Inc.

What makes this product green?

  • Energy-conserving equipment
  • Prevents moisture or air quality problems
  • Improves air quality


The Novus 300 HRV(HRV). Balanced ventilation system in which most of the heat from outgoing exhaust air is transferred to incoming fresh air via an air-to-air heat exchanger; a similar device, an energy-recovery ventilator, also transfers water vapor. HRVs recover 50% to 80% of the heat in exhausted air. In hot climates, the function is reversed so that the cooler inside air reduces the temperature of the incoming hot air. , from Zehnder America, is a high-efficiency, PassivhausA residential building construction standard requiring very low levels of air leakage, very high levels of insulation, and windows with a very low U-factor. Developed in the early 1990s by Bo Adamson and Wolfgang Feist, the standard is now promoted by the Passivhaus Institut in Darmstadt, Germany. To meet the standard, a home must have an infiltration rate no greater than 0.60 AC/H @ 50 pascals, a maximum annual heating energy use of 15 kWh per square meter (4,755 Btu per square foot), a maximum annual cooling energy use of 15 kWh per square meter (1.39 kWh per square foot), and maximum source energy use for all purposes of 120 kWh per square meter (11.1 kWh per square foot). The standard recommends, but does not require, a maximum design heating load of 10 W per square meter and windows with a maximum U-factor of 0.14. The Passivhaus standard was developed for buildings in central and northern Europe; efforts are underway to clarify the best techniques to achieve the standard for buildings in hot climates.-certified heat-recovery ventilator (HRV). Based on HVI test methods, it achieves an ASEF of 94%–96% and an SRE of 90%–91%, making it the highest performing HRV in the HVI Certified Products Database. The efficiency is thanks in part to an ECM motor. The Novus 300 can move up to 177 cfm, and comes standard with a MERV 7/8 filter, but an optional MERV 13 filter is available. An optional humidity heat exchangerDevice that transfers heat from one material or medium to another. An air-to-air heat exchanger, or heat-recovery ventilator, transfers heat from one airstream to another. A copper-pipe heat exchanger in a solar water-heater tank transfers heat from the heat-transfer fluid circulating through a solar collector to the potable water in the storage tank. is also available. The Novus 300 comes with a two-year warranty.

Manufacturer Information

Zehnder America, Inc.
540 Portsmouth Ave.
Greenland, NH 03840
Phone: 603-422-6700
Fax: 603-422-9611
Toll-free: 888-778-6701

Listed in: Air-to-Air Energy Recovery Ventilation