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

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

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 TWater HeatersHydronicsNorm Hallflow rate
elephant in room
elephant in room

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

Norm Hall October 10, 2022Plumbing System Design, Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, 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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Water HeatersNorm HallASHRAE
elephant in room
elephant in room

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

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

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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hot water recirculationPVI-Water HeatersWater HeatersTanksNorm HallDomestic Hot Water Recirculation Systems
frozen ice
frozen ice

Heat Pump Water Heaters: Standby Capacity (Part 7)

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

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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hot water recirculationWater HeatersHydronicsNorm HallDomestic Hot Water Recirculation Systemshydronic system
commercial pump water heater
commercial pump water heater

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

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

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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Water HeatersHydronicsNorm Hallhydronic systemsDomestic Hot Water Recirculation Systems
temperatures
temperatures

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

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

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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Water HeatersPipingPumpsTanksNorm HallExpansion Tanks
Lemonade Stand
Lemonade Stand

Heat Pump Water Heaters: How They Work (Part 2)

Norm Hall August 8, 2022Heat Pump Water Heaters, Monday Morning Minutes, Water Heaters, Plumbing System Design, Electric, Heat Pump Water Heaters

Heat pump water heaters have a place in the decarbonization efforts by building plumbing designers, contractors, and engineers. Heat pumps have been part of the …

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Water HeatersNorm HallpumpsHVAC Hydronic SystemHVAC Systems

Heat Pump Water Heaters: The Road to Decarbonization (Part 1)

Norm Hall August 1, 2022Water Heaters, Plumbing System Design, Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes

Building plumbing design will always include the need for a domestic hot water heater. Plumbing engineers will traditionally look at gas fired tankless or tank …

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carbon reductionWater HeatersNorm HalldecarbonizationelectricHeat pump water heaters

Heat Exchanger Types and Where to Use Them: Part 4 – Variable Flow Applications

Norm Hall July 11, 2022Monday Morning Minutes, Heat Exchangers, Plate Type, Shell and Tube

When should you choose to use a gasketed plate, brazed plate, or shell and tube heat exchanger? Often in HVAC, plumbing, or industrial systems any …

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Heat ExchangersSelectionNorm Hallflow rateGasketed Plate Heat Exchangers
thermometer
thermometer

Heat Exchanger Types and Where to Use Them: Part 3 – Close Temperature Applications

Norm Hall July 4, 2022Monday Morning Minutes, Heat Exchangers, Selection and Specification, Plate Type

When should you choose to use a gasketed plate, brazed plate, or shell and tube heat exchanger? Often in HVAC, plumbing, or industrial systems any …

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Gasketed Plate Heat ExchangersHeat ExchangersSelectionNorm Hallshell and tube heat exchangersHVAC Hydronic SystemHVAC Systems
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