FAIRBANKS — To begin 2015, we are running a series on heat recovery ventilators (HRV) in this column. Indoor air quality is a perpetual concern in cold climate housing, and has become more so in ...

Q How can I install a heat recovery ventilator (HRV) in my home when I have no existing ducts? I’m told I need ducts for the system to work. Besides being expensive and massively disruptive, I can’t ...

In this case, go for an HRV installation. For more information about the best ventilation system for you, contact an experienced HVAC professional. — Laura Firszt writes for networx.com.

Potential savings on energy bills will only partially offset the installation cost. — Standard HRV or ERV equipment won’t function well in extreme cold.