Plumbing & Mechanical Engineer

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In 2012 the price of #2 fuel oil in upstate New York was approaching a previously unheard of $4 per gallon. This spurred many pending heating system projects to consider the use of cordwood or wood pellets.

Many of the topics I have discussed in my column to this point have been about temperature considerations within the supply and return system based on recommendations in the community and right-sizing domestic water piping to reduce the overall volume of water in the building’s piping system.

In last month’s column, I touched on air-to-water heat pumps because they are rapidly becoming very saleable to consumers. In some areas of the U.S., electric heating, cooling and production of DHW are no longer an option and fossil fuels have been outlawed.

Almost 80% of all water consumption comes from two groups: No. 1, thermoelectric power, and No. 2, irrigation (farming). Public supply, which includes industrial buildings, commercial buildings and residences, accounts for only 10%.

As with most things hydronic, there are multiple approaches, and the “best” approach for each installation has to consider cost, aesthetics, access to the existing piping, available wall space and the goal of how the overall system will operate based on existing or newly created zones.

Most plumbing professionals in residential construction know PEX. They have either used it themselves or know other designers or installers that are using it. That’s because PEX is the piping product used in more new-home construction than copper and CPVC combined.

“Governmental members” may desire a public perception of having “no vested financial interest in” the development process. But there is no requirement or mandate for them to be transparent in avoiding conflicts of interest.

Taco Comfort Solutions wins the AHR 2023 Innovation award for Sustainable Solutions with its System M. I fully expect to see a virtual explosion in the number of air-to-water heat pumps on display at the upcoming AHR Expo in February.

What characteristic do solar thermal collectors, hydronic heat pumps and thermal storage tanks supplied by biomass boilers have in common?

Pressure relief valves protect fire sprinkler system components by relieving excess system pressure from supply surges or temperature changes. Since the 2010 edition, NFPA 13: “Standard for the Installation of Sprinkler Systems” has required pressure relief valves to be installed on all wet pipe fire sprinkler systems. But picking the correct relief valve for a specific system does need a little preplanning.