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HVAC Load Calculator

Our cannabis HVAC load calculator is a powerful and user-friendly tool designed to help you accurately determine the heating and cooling requirements of your space.

By simply inputting key data such as room dimensions, insulation levels, window types, occupancy, and local climate conditions, the cannabis HVAC load calculator provides precise recommendations for the ideal HVAC system capacity.

Whether you're designing a new indoor grow facility, upgrading an office climate system, or planning residential comfort improvements, this cannabis HVAC load calculator ensures your HVAC selection promotes energy efficiency, optimal comfort, and long-term cost savings. Take the guesswork out of climate control and make informed decisions with our smart cannabis HVAC load calculator solution.


Disclaimer: The BTU and tonnage calculator is designed to provide you with a rough estimate to determine the size of air conditioner you need. You should not rely on this calculator to decide whether to purchase an air conditioner. If you need to perform detailed load calculations to determine the exact cooling load for your home, please contact our professional HVAC team. We would be happy to help you determine the right size air conditioner for your home.

VPD Calculator


Adjusting temperature and humidity by calculating VPD helps cannabis plants take up water and nutrients efficiently.


CO₂ Calculator


Calculate the CO₂ concentration to help improve photosynthetic efficiency and optimise plant growth and yield.


GPP Calculator


Enter the air temperature and humidity and calculate the humidity per pound of air to maintain optimum humidity.


Vapor Pressure Calculator


Calculates the vapour pressure based on the temperature and humidity. This helps improve growth conditions.


Humidity Calculator


Calculates absolute humidity using temperature and humidity data. This helps you see the real moisture level.


Temperature Converter


Quickly convert temperatures between different units, such as Celsius and Fahrenheit.


CFM Calculator


Enter the room size and the number of air changes required to calculate air flow (cfm).


Cooling Capacity Converter


Converts cooling capacity in various units like BTU. This helps you pick the best air conditioning or HVAC system.


HVAC Load Calculator


Enter the room size and conditions to find the heat load needed for the grow room.


Dehumidification Calculator


Size your dehumidifier to the specific needs of your grow room and ensure optimal humidity levels for air quality.


Length Converter


Convert lengths between units (e.g. metres) to adjust the size and layout of your grow room.


Area Converter


It converts area measurements to help you to calculate grow room space accurately.


Volume Converter


It converts different volume units (e.g. gallons) to help you work out space and fluid needs in your grow room.


Weight Converter


Convert weights in different units (e.g. kg, lbs, oz) to calculate grow room materials and equipment.


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Can't find the calculator you want? Have a question? Contact us, we're happy to assist!