Every week a question comes into R. L. Deppmann about the minimum flow rate through hydronic pumps and the best way to achieve it. Today, …
Enter to Win: PVI AquaPLEX Contest
ENTER TO WIN: Now through December, R.L. Deppmann will be randomly selecting monthly winners to receive exciting prizes valued at up to $200 USD. …
Gas Fired Water Heaters – Multiple Units and Future Capacity
When determining the size and number of water heaters to meet the customer’s needs, there are many factors to consider. How many water heaters do …
Commercial Gas Fired Water Heaters – The Battle Between Tankless & Storage: Risk and Reward
Gas fired tankless and tank storage water heaters are choices for the consulting engineer in commercial and institutional buildings. There are many marketing pieces supporting …
PVI Turbopower Water Heater: Measurements and Combustion Analysis
There are many fine service contractors who have PVI Factory Training. However, many owners do this work with their own staff. To supplement the important factory …
Steam Condensate Return Transfer Pump Inlet
One of our many new employees asked a valid question about cast iron condensate unit pump construction. The employee has worked in the HVAC plumbing …
Burns Park Rain Garden Clean Up
Water Quality: Capturing Stormwater Runoff When rain hits the roofs, streets, and driveways of our neighborhoods, it washes pollution into streams and rivers. Rain gardens …
Hydronic System Automatic Air Vents
There are many types of air vents in hydronic heating and cooling HVAC systems. It is not unusual to see an engineered set of drawings …
PVI Conquest Water Heaters Part 3: Maintenance
Part 3 of our PVI Conquest service tip of the month is focusing on maintenance on the water heater. Please make sure a qualified individual …
Selecting Air Vents For Hydronic Systems With Glycol
Sometimes simple things can slow you down in the design of hydronic heating and cooling systems. Air vents for use in water and glycol systems …