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Heat Pump Water Heaters: Chilled Water Source (Part 13)

Norm Hall November 14, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

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 …

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ASHRAENorm HallWater Heaterswater quality

Heat Pump Water Heaters: Water Source Units (Part 12)

Norm Hall November 7, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

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 …

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Delta Tflow rateHydronicsNorm HallWater Heaters

Heat Pump Water Heaters: Drive Down First Cost Using Hybrid Solutions (Part 11)

Norm Hall October 31, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

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 …

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hydronic systemhydronic systemsHydronicspumpsWater Heaters
elephant in room
elephant in room

Heat Pump Water Heaters: Example Apartment Building Costs (Part 10)

Norm Hall October 10, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

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 …

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ASHRAENorm HallWater Heaters
elephant in room
elephant in room

Heat Pump Water Heaters: Example Apartment Building (Part 9)

Norm Hall October 3, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

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 …

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Domestic Hot Water Recirculation Systemshot water recirculationNorm HallPVI-Water HeatersTanksWater Heaters

Heat Pump Water Heaters: Capacity, COP, and Weather (Part 8)

Norm Hall September 26, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

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 …

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heatingWater Heaterswater pump water heaters
frozen ice
frozen ice

Heat Pump Water Heaters: Standby Capacity (Part 7)

Norm Hall September 19, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

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 …

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Domestic Hot Water Recirculation Systemshot water recirculationhydronic systemHydronicsNorm HallWater Heaters
commercial pump water heater
commercial pump water heater

Heat Pump Water Heaters: Hot Water Recirculation (Part 6)

Norm Hall September 12, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

How does the commercial heat pump water heater, using the preferred R-744 refrigerant, handle the domestic hot water recirculation load? The R-744 (carbon dioxide) heat …

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Domestic Hot Water Recirculation Systemshydronic systemsHydronicsNorm HallWater Heaters

Heat Pump Water Heaters: Parts and Pieces and Storage (Part 5)

Norm Hall September 5, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

What does a commercial air source heat pump water heater look like? Where will it be located and what are the major components that the …

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heat pumpsstorage tanksWater heaterwater heater parts
temperatures
temperatures

Heat Pump Water Heaters: Temperatures & Storage (Part 4)

Norm Hall August 22, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

Commercial heat pump water heaters using R-744 (CO2) refrigerant operate best when attention is paid to the piping and storage tank arrangement. Today, in part …

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Expansion TanksNorm HallPipingpumpsTanksWater Heaters
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  • Products
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    • Variable Frequency Drives (VFDs)
    • Glycol Installation
    • Snowmelt Designs
  • System Design
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    • Overview
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