What is the Refrigerant Pressure Comparator for?

The Refrigerant Pressure Comparator is an essential tool for HVAC engineers, allowing quick and accurate determination of refrigerant saturation pressure at a given temperature. Simply select a refrigerant and temperature to instantly view its pressure in your preferred unit — kPa, bar, or psi. This tool supports a wide range of modern and legacy refrigerants and includes environmental data such as GWP and ODP, making it both a practical engineering calculator and a valuable sustainability reference. Ideal for service engineers, specifiers, and technicians working with refrigeration and air conditioning systems.

REFRIGERANT PRESSURE CALCULATOR

Select your refrigerant, enter your desired temperature, then press "Calculate" for the required pressure. 

Select Refrigerant: R22R134aR32R507_BUBR507_DEWR404A_BUBR404A_DEWR410A_BUBR410A_DEWR407F_BUBR407F_DEWR407C_BUBR407C_DEWR513AR452A_BUBR452A_DEWR449A_BUBR449A_DEWR448A_BUBR448A_DEWR1234zeR1233zdR1234yfR454C_BUBR454C_DEWR454B_BUBR454B_DEWR717 NH3R600a ButaneR290 Propane Temperature Unit: Celsius (°C)Fahrenheit (°F) Temperature Selection: -44°C-42°C-40°C-38°C-36°C-34°C-32°C-30°C-28°C-26°C-24°C-22°C-20°C-18°C-16°C-14°C-12°C-10°C-8°C-6°C-4°C-2°C0°C2°C4°C6°C8°C10°C12°C14°C16°C18°C20°C22°C24°C26°C28°C30°C32°C34°C36°C38°C40°C42°C44°C46°C48°C50°C52°C54°C56°C58°C60°C Calculate

What is the Refrigerant Gas Charge Calculator for?

The Refrigerant Gas Charge Calculator is a practical tool for HVAC engineers and installers. It helps determine the correct amount of additional refrigerant (in kilograms) required when the pipe length exceeds the manufacturer’s standard allowance.

Simply select your refrigerant type (e.g., R32), choose the pipe configuration (e.g., 1/4" + 3/8"), and enter the extra pipe length in metres. The calculator will output the accurate gas charge required, ensuring optimal performance, system efficiency, and compliance with installation specifications.

REFRIGERANT CHARGE CALCULATOR

Select Refrigerant: R32R410AR407CR134aR404AR290R1234yf Select Pipe Configuration: 1/4" + 3/8"1/4" + 1/2"1/4" + 5/8"3/8" + 5/8"3/8" + 3/4"1/2" + 3/4"1/2" + 7/8"5/8" + 1"5/8" + 1 1/8"3/4" + 1 1/8"3/4" + 1 3/8"7/8" + 1 5/8"1" + 1 7/8" Extra Pipe Length (m): Calculate

What is the Air Conditioning & Heat Pump Sizing Calculator for?

This entry level tool helps users estimate the correct system size (in kW) required to effectively cool or heat a room, based on its dimensions and usage type. Simply enter the room’s length, width, and height in metres, then select the room’s intended use (e.g., Bedroom, Office, Retail). The calculator determines the total room volume and applies a recommended kW/m³ multiplier based on usage type.

The result includes both the estimated cooling/heating load and the recommended system size with a 15% safety buffer for real-world performance.

AIR CONDITIONING SIZE CALCULATOR

Room Length (m): Room Width (m): Room Height (m): Room Use: Bedroom / LoungeOffice / RetailKitchen / GymServer Room / Workshop Calculate

What is the Heat Pump Running Cost Calculator for?

This calculator estimates the daily and annual running costs of a heat pump system, using the provided required output (kW), COP (Coefficient of Performance), and electricity rate. Enter the system’s output demand, the efficiency rating (COP), cost per kWh in pounds, and average daily usage hours. The tool will calculate your expected daily and yearly electricity consumption and convert this into monetary cost.

This is ideal for comparing energy savings between systems or assessing operating costs for residential or commercial HVAC projects.

Heat Pump Running Cost Calculator (Using COP and 100% heat pump power)

Required Heating/Cooling Output (kW): System COP (Coefficient of Performance): Electricity Cost (£/kWh): Hours Used Per Day: Calculate