Security Seal Facebook Twitter GooglePlus Pinterest Newsletter Sign-up

Mark C. Honeywell's Patent for a New Type of Tee

Info

Published
July 27, 2009
Download PDF Subscribe to RSS feed

In a gravity hot water system, the hottest water is near the top of the horizontal main and tends to travel first to the upper-floor radiators. Mr. Honeywell, in 1909, patented this invention to help balance these systems.