Attic Heat Recovery System

Heat recovery ventilators reclaim energy from exhausted stale indoor air to temper incoming fresh air heat is retained during cooler seasons and removed during warmer seasons.

Attic heat recovery system.

The result is better indoor air quality and lower energy use than in standard homes. The reason to use ventilation system with heat recovery is so you minimize heat gain or loss so putting it into unconditioned space kind of defeats the purpose. In a nutshell warmspring is basically the combination of an attic ventilation fan with a compact air to water heat exchanger. One of the most visible and perhaps even iconic features of a super energy efficient home is the heat recovery ventilator hrv.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. A heat recovery system works also called hrv or mvhr via a heat recovery ventilation unit which is usually located in the attic roof space or plant room of a building. The patent pending warmspring attic heat recovery system takes a more practical approach to exploiting low grade heat from a seasonally hot attic. These systems capture about 70 percent of the energy already expended to temper incoming air.

A strong ventilation system was the answer and its secret weapon was a heat recovery ventilator aka an air to air heat exchanger. Intake vents located at the lowest part of the roof under the eaves allow cool. The goal was to rid the house of its stale moist air while keeping as much of that air s heat as possible.