Air recirculation in ventilation systems is essentially the mixing of a certain amount of exhaust air into the supply air. This process provides a reduction in energy consumption when heating fresh ...

Description: Greenheck has added three new models to its line of high-performance residential energy recovery ventilators (ERVs). Assure-140SC is a cost-effective, cold weather-certified ERV with a 30 ...

In our modern semi-dystopia, it seems like most companies add automation features to their products to lock them down and get consumers to buy even more proprietary, locked-down components. The few ...

Airtight and super-insulated, a passive house uses around 90% less energy. When the Canadian engineer Harold Orr and his colleagues began designing an ultra-efficient home in Saskatchewan in the late ...

We have no idea whether [Nick Goodey] is a trained engineer or not. But given the detailed design of this DIY energy recovery ventilator for his home HVAC system, we’re going to go out on a limb and ...