Ask Caleffi
About the show
Latest episodes
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#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…
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#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…
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#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…
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#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…
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#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)…
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#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.
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#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…
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#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…