Description: This product was designed as a low-cost alternative to zoning. It manually directs more airflow to where it’s needed so that the upstairs and downstairs spaces are cooled or heated at the ...

Why balance matters: Even airflow prevents hot and cold spots, reduces strain on your HVAC system, and can lower energy costs. Tools of the trade: Registers, grilles, diffusers, and dampers work ...

With so many damper options on the market, choosing the right one can be tricky for the uninitiated contractor. Luckily, Greenheck, a leading manufacturer of a variety of dampers, gave us access to ...