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 …
Heat Pump Water Heaters: Hot Water Recirculation (Part 6)
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 …
Heat Pump Water Heaters: Parts and Pieces and Storage (Part 5)
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 …
Heat Pump Water Heaters: Temperatures & Storage (Part 4)
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 …
Heat Pump Water Heaters: Refrigerants and Weather (Part 3)
Heat pump water heaters use the heat pulled from the water or air source to heat the domestic water. Most of the time the commercial …
Heat Pump Water Heaters: How They Work (Part 2)
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 …
Heat Pump Water Heaters: The Road to Decarbonization (Part 1)
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 …
Hot Water Heater Decarbonization: Using Condenser Water to Pre-Heat the Incoming Cold-Water
Decarbonization does not always automatically become electrification. The enterprising engineer will first look at diverse ways to reduce the carbon use. Here is an example …
Carbon Reduction is the Dream. Here’s How to Make it a Good One.
Carbon reduction in building design is critical to the lifestyle of our future generations. Most engineers and their owner clients understand the concerns and welcome …
Domestic Hot Water Recirculation Systems eBook
The design of a domestic water recirculation system is critical for commercial and institutional buildings. Today, R. L. Deppmann launches a new resource to assist …