Peter's HVAC Advisory

Home & Getting Started

• Home – HVAC & Refrigeration Tools
• Sign Up — Free Beta Access
• Login
• Support the Project (Donate)

About, Contact & Help

• About Peter's HVAC Advisory
• Contact & Send a Message
• Calculator Help (Coming Soon)

Special Tools

• ChinookWatch – Calgary Weather Alerts for HVAC
• ChinookWatch – Lethbridge View
• Pressure Alerts Help (ChinookWatch)
• 48-Hour Pressure Trend Charts
• R-410A Diagnostic Tool (Legacy–2030) — free
• R-410A Diagnostic Help (free)
• Pressure-Enthalpy (PH) Chart

Members Area & Tools Hub

• Members Area Home
• All Refrigerants
• Electrical Calculators
• Residential Heat Loss Calculator
• Residential Heat Gain Calculator
• Refrigeration Load Estimator
• Submit a Bug Report

Refrigerant Tools (In Beta)

• R-410A Diagnostic (free, Legacy–2030) (old /members/r410a.htm redirects here)
• R-32 Charts & NRE
• R-454B Charts & NRE
• R-134a Charts & NRE
• R-404A Charts & NRE

Coming soon: R-22, R-448A, R-407C (placeholders available)

Other Calculators & Tools

• Airflow Calculator
• Air Calculator
• CFM per Ton
• Compressor Load Estimator
• Defrost Heater Calculator
• Efficiency Calculator
• Fan Laws
• Fan Motor Calculator
• Heating Capacity
• Ohm's Law
• Pressure Tools
• RPM Calculator
• Temperature Split
• Total Cooling
• 3-Phase Power
• Capacitor Sizing
• Motor Circuit Sizing
• Voltage Drop