Plumbing & Mechanical Contractor

RSS

The very first installation of the Mikrofill 3 hydronic pressurization unit in North America took place recently in a mechanical room of an assisted- and independent-living community in Southwest-suburban Chicago. You might say the flower of this innovation grew from the soil of an old industry friendship.

Have you ever started your day thinking, “Ahh, coffee!” only to have it turn into “ouch!” as the steaming hot beverage hits the roof of your mouth? If so, you have experienced scalding. Luckily, the scald you experienced was (most likely) mild and, while quite painful, healed quickly and without the need for hospitalization or the prolonged medical treatment that is required for the nearly half a million people who experience scalding each year.

When you talk about water scarcity and the lack of clean drinking water, most people think about third-world countries. They don’t realize that there’s a growing threat to clean water right here at home in the United States. Look at the February train derailment in East Palestine, Ohio, where a fire forced the controlled release and burn of toxic chemicals to avoid an explosion. The resulting contamination killed thousands of fish in nearby streams and ignited concerns over soil and water quality.

Last month, the Biden-Harris Administration announced it is proposing the first-ever national drinking water standard for six per- and polyfluoroalkyl substances (PFAS). The proposal, if finalized, would regulate PFOA and PFOS as individual contaminants, and will regulate four other PFAS — PFNA, PFHxS, PFBS and GenX Chemicals — as a mixture.

Can you spot at least six design or installation details that are going to create problems?

In 1885, when you could still buy a milk cow for $29.70, Albert Butz, a Swiss immigrant living in St. Paul, Minnesota, invented what he called the damper-flapper. He patented it the following year. The flapper opened a damper that allowed outside air to enter a coal-fired home furnace. This increased the oxygen in the furnace and made the fire burn hotter. When the temperature rose to a desired point, the damper closed.

More and more hydronic heating and cooling systems are being designed around air-to-water and water-to-water (geothermal) heat pumps. When the heating distribution system is extensively zoned, a buffer tank is typically installed between the heat pump and that distribution system.

Are you an ace troubleshooter? We pose a question to you, our readers, to review a system’s schematic layout and discover its faults, flaws and defects.

Late last year, LIXIL made headlines when it announced the acquisition of Basco, a U.S.-based shower door manufacturing company.

Concealed attic spaces combine some of the most difficult aspects of fire protection design and require carefully tailored fire sprinkler solutions for effectiveness.