Water Source Heat Pumps

Recently, we attended a seminar on Water Source Heat Pumps (WSHPs). It seems that the HVAC industry is pushing the installation of WSHPs, in commercial buildings, in order to help reduce green house gas emissions. In effect, WSHPs are taking the place of gas fired furnaces and boilers. Why should the insurance industry be concerned? As shown in the diagrams below, WSHPs use a water loop, much like a chilled water cooling system, to transfer heat to or from the space to be cooled or heated. The amount of piping used in these systems indicates that the volume of water can amount to hundreds of gallons, depending on the size of the building. If a leak occurs, the cost to repair can extend into the hundreds if not thousands of dollars. Similary, the cost to repair or replace property can extend into the hundreds of thousands of dollars. Possible causes of water leakage can include faulty workmanship by the installing contractor and defective materials used during installation.

Water loop used in water source heat pump systems

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About R.J. Hill, P.E.
R. J. Hill is the author of two blogs: R.J. Hill Consulting and the Descendants of James Alexander Hill. Mr. Hill is a registered professional (mechanical) engineer with 42 years of experience, 37 years in private practice. Please visit www.rjhill.com to see the kinds of forensic investigations that Mr. Hill performs.

2 Responses to Water Source Heat Pumps

  1. Carmen Elia says:

    I believe in climate change. I’ve witnessed it. If there is no better solution to help with climate change in converting these buildings then it is imperative that a stringent inspection of the installation. Including quality materials, and well trained technicians are employed. Periodic inspection also. That’s if that is the only option.

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    • Ms. Ella, I agree with you. Unfortunately, our technology has not progressed to the point where electric power can be produced in large quantities and stored without having to produce harmful gases or nuclear waste. Energy produced using photovoltaic panels or wind turbines would be ideal solutions if only large quantities of energy could be stored for use when the sun wasn’t shining or the wind wasn’t blowing.

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