Ask Caleffi
Notes on this show
Caleffi's tech support people answer tricky hydronic heating and plumbing questions that contractors run into in the field.
If you like Ask Caleffi, try…
Latest episodes
-
#1.10 A Job vs. A Career: Which Approach Are You Taking to the Trades?
June 26, 2026 · 15 minEver feel like you’re just punching a clock while the industry evolves without you? In this episode, we ditch the product specs to discuss the mindset required to build a meaningful, lifelong career in the plumbing and hydronics…
-
#1.9 Separation Simplified: What are the Best Practices for Keeping Your System Clean and Healthy?
June 5, 2026 · 23 minEver been haunted by "ghost flows" or a radiator that won't stop clicking? In this episode, the team breaks down separation—the art of managing air, dirt, and pressure to ensure your system actually behaves. Hydronic systems fail when air…
-
#1.8 Thermal Disinfection & Chemical Injection: What is the Right Mix for your System Update?
May 15, 2026 · 22 minLegionella isn’t a “rare edge case” problem—it’s a predictable outcome of physics and biology. When water sits warm and stagnant, it becomes an incubator for bacteria that grows in the biofilm of the piping. In this episode, we step inside…
-
#1.7 Mixing Valve Sizing: Why Pipe Size is Misleading?
May 1, 2026 · 19 minWe’re diving deep into the practical mechanics of thermostatic and digital mixing valves, featuring the Caleffi 521 Series and the 520 AngleMix™. Moving beyond the spec sheet, we break down how these valves actually behave in the field…
-
#1.6 Manual vs. Thermostatic: Which Balancing Strategy Is Right for Your Project?
April 17, 2026 · 20 minEver stayed in a hotel where you have to turn the shower on, go grab breakfast, and come back just to find "warm" water? In this episode of Ask Caleffi, the team dives deep into the "why" and "how" of domestic hot water (DHW)…
Show 7 more episodesShow fewer episodes
-
#1.5 Pressure Reducing Valves: One, Two, or Too Much?
September 9, 2025 · 17 minWhich pressure reducing valve is right for your plumbing system? Sometimes PRVs require two valves in series. Hear how the guys get the pressure right in all sorts of applications, from sea to shining sea.
-
#1.4 Overpressurized Again: What Went Wrong?
August 26, 2025 · 19 minSteady plumbing system pressure is the goal, what do you need to check if the pressure is creeping up? The team discusses the different types of municipal and private systems that bring pressurized water to buildings. Each water service is…
-
#1.3 Get Ahead This Heating Season : How Do you Protect your Most Expensive Components?
August 11, 2025 · 21 minThere are always rabbit holes in hydronic startups. Find out how the team deals with the tricky task of keeping a hydronic system in good shape. Fluid quality and high-performance separators are key. Over the years, the guys have built…
-
#1.2 Pumps, Valves, and the Zone Debate: Why do we still see oversized pump systems, and what’s the smarter way to zone in?
July 22, 2025 · 17 minZoning options can be overwhelming, because there are so many choices and no two projects are the same. The team walks through the different zone valve and zone relay technologies you will run across in the field. Hear how you can set…
-
#1.1 AutoFill™️ for speed: What makes a hydronic fill valve multi-purpose?
July 8, 2025 · 22 minThe team is in the lab to talk about the best way to fill a hydronic system. They break these fill valves down and share stories from the field. Find out what questions you should ask your customer to determine if you should leave the…
-
#43 Air-Tight-Logic with Posi-Stop (with Matt DeLuca)
August 29, 2023 · 10 minWhat happens in the field when you need to loosen a union to service a valve? Do you always need to replace the sealing elements? How can the Posi-Stop™ embedded O-ring union system help? Which products are shipping now with…
-
#42 Get In the Zone! (with Mike Schreiner)
July 18, 2023 · 27 minIn this episode, Greg and Dan talk to "the man, the myth, the legend" of zone valves, Mike Schreiner, Caleffi CTO. Mike has been working with zone valves for his entire career and is pleased to share his wealth of knowledge to help our…
About the show
No description available.

United States
Australia
Brazil
Germany
India
Ireland
Japan
Mexico
New Zealand
Philippines
South Africa
United Kingdom