When designing a high-efficiency service water heating system, you must often balance energy savings with your client’s budget. Tankless water heaters save energy, but at what cost? …
Energy Loss from Water Heater Cycling in Volume vs. Tankless Models
ASHRAE and the U.S. DOE both make definitive statements that water heater cycling can significantly affect efficiency. Today, we’ll quantify the energy loss from water heater cycling in …
Water Heater Efficiency in Tankless vs. Volume Water Heaters
There are two parts to the real story behind tankless water heaters and volume water heaters: energy and cost of ownership. This week, we look at …
Piping in a Tankless Water Heater vs. Volume Water Heaters
Service water heaters may be tank-type heaters, volume water heaters, or tankless heaters. How is the piping in a tankless water heater different from the more traditional …
Tankless Commercial Service Water Heaters
Fueled by news articles and industry blogs associating Legionnaire’s disease with domestic water heating, we’ve received more inquiries about the Aerco Innovation series of tankless water …
Parallel Pumping and Motor/Drive Efficiency for Domestic Water Pressure Boosters (Part 6)
In the last Monday Morning Minutes post, we explored motor and drive efficiency at part load conditions as a possible reason for the rule of …
Pumping System Efficiency for Domestic Water Pressure Boosters – Part 6
In last week’s Monday Morning Minutes (MMM) post, we offered some rules of thumb about using 100% standby pressure booster systems versus 50%-50% staged systems. So, why do …
Cost Analysis of Domestic Water Pressure Booster System Capacity Sizing Part 5
In last week’s Monday Morning Minutes (MMM) post, we looked at two different load profiles and introduced a capacity example with a range of variability …
A Comparison of Domestic Water Pressure Booster Systems Part 4
Happy New Year! We hope that your 2016 is filled with good news personally, and a healthy business. In last week’s Monday Morning Minutes post, we …
Pump Options for Domestic Water Pressure Booster Systems Part 3
In the last two R. L. Deppmann Monday Morning Minutes posts, (MMM) we selected the design and minimum pressures required for a pressure booster system. …