Attic Heat Recovery System

Hrv systems are designed to be ducted whole house solutions.

Attic heat recovery system.

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. 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 patent pending warmspring attic heat recovery system takes a more practical approach to exploiting low grade heat from a seasonally hot attic. 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 result is better indoor air quality and lower energy use than in standard homes.

The goal was to rid the house of its stale moist air while keeping as much of that air s heat as possible. These systems capture about 70 percent of the energy already expended to temper incoming air. If you put this system in unconditioned space say a vented attic the outdoor air being delivered to the house will pick up or lose heat on its way.