Refrigerant Comparison Calculator: Compare Efficiency, GWP & Safety (Free Guide) You are choosing a refrigerant for a new system. Or you are retrofitting an existing one. R22 is being phased out. R410A has high GWP. The options are confusing. Refrigerant choice affects efficiency, safety, cost, and the environment. Comparing refrigerants … Read more
R134a Pressure Temperature Calculator: Essential Refrigerant PT Tool (Free) You are working on a car’s air conditioning system. Or a refrigerator. Or a commercial cooling unit. It uses R134a refrigerant. You need to check the charge. You measure pressure at the service port. What is the corresponding saturation temperature? R134a … Read more
R32 Pressure Temperature Calculator: Next-Gen Refrigerant PT Chart (Free Tool) You are working with a newer air conditioner or heat pump. It uses R32 refrigerant. You need to check the charge. You measure pressure at the service port. What is the corresponding saturation temperature? R32 is becoming the standard replacement … Read more
R22 PT Chart Calculator: Pressure Temperature for R22 Refrigerant (Free Tool) You are servicing an older air conditioner or heat pump. It uses R22 refrigerant. You need to check the charge. You measure pressure at the service port. What is the corresponding saturation temperature? R22 (Freon) was the standard refrigerant … Read more
R410A Pressure Temperature Calculator: You are an HVAC technician. You need to check the refrigerant charge. You measure pressure at the service port. What is the corresponding saturation temperature? R-410A is the most common refrigerant in modern air conditioners and heat pumps. Its pressure-temperature relationship is critical for charging, troubleshooting, … Read more
Dew Point Calculator: Calculate Condensation Temperature & Humidity (Free Tool) You wake up. Your windows are covered in water. Your basement feels damp. Your bathroom mirror is fogged. That is dew point. It is the temperature at which water vapor in the air condenses into liquid water. Knowing the dew … Read more
Enthalpy Calculator HVAC: Measure Total Heat in Air (Free Tool) You are an HVAC technician. You need to know how much heat is in the air. You have dry bulb and wet bulb temperatures. How do you find enthalpy? Enthalpy is the total heat content of air. It includes both … Read more
Sensible Heat Ratio Calculator: Optimize HVAC & Cooling Systems (Free Tool) You have an air conditioner. It removes heat from your home. But how much of that is sensible heat (temperature change) vs. latent heat (humidity removal)? The Sensible Heat Ratio (SHR) tells you. It is the ratio of sensible … Read more
Static Pressure Calculator: Measure HVAC Duct & Fan Resistance (Free Tool) You have a fan. You have ducts. You turn on the fan. But air barely comes out of the vents. The problem is static pressure. Static pressure is the resistance to airflow in a duct system. Think of it … Read more
Air Changes Per Hour Calculator: Optimize Your Room Ventilation (Free Tool) You have a room. You need to know how often the air is replaced. Is it enough for a bathroom? A laboratory? A grow room? Air changes per hour (ACH) tells you how many times the entire volume of … Read more
