Combining HRVs/ERVs and Heating/Cooling
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....
Frost Prevention in HRVs and ERVs in North America
There are several options for preventing frost in HRVs/ERVs, and the following is a sampling of the most popular options. It is important to have adequate frost prevention, and depending on your climate, there are best practices available. If you have questions about...
Understanding the Summer Bypass Function
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,...ASHRAE Standard 62.2-2010
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...