All factors being equal, warm and sunny days produce the greatest “Btu harvest” from any solar-thermal collectors supplying a domestic water heating system. The more intense the sunlight, the greater the heat input. The warmer the ambient air, the lower the heat losses from the collector enclosure.
When IAPMO switched in the 1990s to the consensus process for the development of the Uniform Plumbing Code, it knew it gave up some control of its document.
We’ve seen this collision before in the last year or so when two indicators of nonresidential construction industry activity are released virtually at the same time, with each moving in a different direction. The divergent reports support comments I’ve been hearing from engineers, contractors and manufacturers that the road to economic recovery remains a bumpy one.
The Reduction of Lead in Drinking Water Act redefines the term “lead-free” in the Safe Drinking Water Act of 1974 down from a maximum 8% on a weighted average basis to the new level.
The Reduction of Lead in Drinking Water Act redefines the term “lead-free” in the Safe Drinking Water Act of 1974 down from a maximum 8% on a weighted average basis to the new level.
A heated debate ensued regarding flush volumes and flow rates. There was a change to require the water closet flush volume to be lowered to 1.3 gpf — the rounding up of a 1.28-gpf water closet.
These alloys work best in potable water products and applications.
April 24, 2013
In 2003, Milwaukee Valve became the first U.S. valve company to offer a bronze valve that met the requirements of NSF 61. Later that same year, multiple lines of brass plumbing valves also meeting this standard were introduced.
Steam systems have the reputation of being the “bad boy” of the industry and I believe it may be unfounded. Many will suggest replacing the steam system with a new system but it may be fiscally unrealistic to do so.
I love the odd years because they contain ISH Frankfurt. This was my 12th consecutive visit to that enormous hydronic feast. Which is not to say ISH is only about hydronics.
Last month, the American Society of Civil Engineers issued its Report Card for America’s Infrastructure, which it does every four years. The cumulative grade-point average, across 16 infrastructure categories is D+. This actually represents an improvement from 2009.