HRV vs ERV

HRV vs ERV

by | Aug 28, 2012 | Uncategorized

We are often asked, “Should I use an HRV or an ERV?” Building professionals sometimes assume that the use of an HRV versus an ERV can be determined by geography, but it is often not that simple. Much of the country uses an HRV and one could generalize that ERVs are...
Combining HRVs/ERVs and Heating/Cooling

Combining HRVs/ERVs and Heating/Cooling

by | Sep 12, 2012 | Uncategorized

Zehnder has been dealing with this issue across the country, and newly collected data confirms our recommendation that you do not mix the two. There are two aspects of this practice that have had negative impacts on comfort, efficiency and healthy environments....
ASHRAE Standard 62.2-2010

ASHRAE Standard 62.2-2010

by | Nov 6, 2012 | Uncategorized

So much talk in the building industry these days seems to be about ventilation, specifically, ASHRAE 62.2-2010. This is the standard that is being adopted by many states for code compliance, as well as by weatherization programs across the country. With the new...
Understanding the Summer Bypass Function

Understanding the Summer Bypass Function

by | Mar 27, 2013 | Uncategorized

As the season approaches for cooling in North America, we want to share some information on Summer Bypass, or Night Cooling. Most of our units provide for automatic Summer Bypass and utilize programming that senses when the inside temperature is warmer than desired,...