AFUE Calculator (Furnace Efficiency): Save Money & Understand Your Furnace (Free Tool) You look at your furnace. It is old. You know it is not efficient. But you want to know: “How much am I spending to heat my home? And what will a new, efficient furnace save me?” The … Read more
Refrigerant Oil Charge Calculator: Lubricate Your System Correctly (Free Tool) You are replacing a compressor. You are adding a new refrigerant line set. You need to know how much oil to add. Too much oil, and it can slug the compressor and reduce system capacity. Too little, and the compressor … Read more
Refrigerant Global Warming Impact Calculator: Measure Your Environmental Footprint (Free Tool) You are an HVAC technician. You recover a few pounds of R-410A from an old system. You think, “It’s just a little bit.” But how much does that really impact the environment? Refrigerants have a Global Warming Potential (GWP). … Read more
Refrigerant Recovery Calculator: Maximize Your Recovery & Profit (Free Tool) You are recovering refrigerant from an old system. You have a recovery tank. You need to know how much refrigerant you can safely recover. You also want to know if it is worth the time and effort. Recovering refrigerant is … Read more
Refrigerant Leak Rate Calculator: Estimate Your System’s Hidden Cost (Free Tool) You top off the charge. A month later, the system is low again. You suspect a leak. But how much is it actually leaking? Is it costing you money? Is it affecting the environment? Refrigerant leaks are the number … Read more
R404A PT Chart Calculator: Master This Commercial Refrigeration Refrigerant (Free Tool) You are working on a supermarket freezer. A refrigerated warehouse. A reach-in cooler. The nameplate says R-404A. You need to know the pressure-temperature relationship. R-404A is one of the most common refrigerants in commercial refrigeration. It is a near-azeotropic … Read more
R507 Pressure Temperature Calculator: Master This Low-Temp Refrigerant (Free Tool) You are working on a commercial refrigeration system. A supermarket freezer. A cold storage room. The nameplate says R507A. You need to know the pressure-temperature relationship. R507A is a common refrigerant for low and medium-temperature refrigeration applications. It is an … Read more
R407C PT Chart Calculator: Master This R22 Replacement (Free Tool) You are servicing an older air conditioner or heat pump. It was retrofitted from R-22 to R-407C. Or you are working on a newer commercial system that uses R-407C. You need to know the pressure-temperature relationship. But R-407C is different … Read more
R454B Pressure Temperature Calculator: The Future of HVAC Refrigerant (Free Tool) You are working on a new air conditioner or heat pump. It uses R454B refrigerant. You need to know the pressure-temperature relationship. But you are used to R410A. R454B is replacing R410A in new equipment. Its pressure-temperature curve is … Read more
Refrigerant GWP Tool: Find & Compare Global Warming Potential (Free Guide) You are choosing a refrigerant for a new system. Or you are retrofitting an old one. You see a number like “GWP 1430” next to R-134a. What does that mean? How does it compare to R-410A or R-32? Why … Read more
