Norm Hall
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November 21, 2022
The United States Department of Energy (DOE) has some minimum efficiency standards which go into effect on January 10, 2023, for Commercial Packaged Boilers. What... READ MORE
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Many heat pumps used in Ohio and Michigan are water source for comfort heating and cooling. Today, we want to look at the opportunity to... READ MORE
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Many heat pumps used in Ohio and Michigan are water sources for comfort heating and cooling. Today, we want to look at the water source... READ MORE
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The owner of a local engineering firm recently said to me, “First cost and space are key discussion points in any building design.” First cost... READ MORE
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Sump and Sewage Pump Flow Rate & Minimum Run Time
Norm Hall
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October 24, 2022
The minimum run time in a sump, effluent, or sewage pump is determined by the flow rate and the volume of water in the basin... READ MORE
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We are saddened to share that our friend and past R.L. Deppmann employee, Chuck Kaiser, was lost while hiking in the Wyoming Rockies. After extensive... READ MORE
Your client is interested in a commercial R-744 refrigerant heat pump water heater solution. The example system I used in this blog is an apartment... READ MORE
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Air source heat pumps are beginning to get attention in conversations among engineers in the northern climates. I appreciate everyone’s patience as you opened this... READ MORE
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How will the weather in a northern climate affect the selection of the heat pump water heater with R-744 refrigerant? What about the Coefficient of... READ MORE
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Hot water availability in many commercial and institutional buildings is critical. Engineers also know that these service water systems are generously sized for the peak... READ MORE
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