Propane Consumption Calculator Online

The Propane Consumption Calculator assists users in determining how much propane their appliances will use over a given period, which helps in efficient fuel management and cost estimation. Whether for residential heaters or commercial boilers, this calculator simplifies your energy management tasks.

Formula of Propane Consumption Calculator

Propane Consumption Per Hour

To find out how much propane an appliance uses per hour, you can use the following formula:

Consumption (gallons per hour) = Appliance BTU rating (BTU/hour) / 91500 (BTU/gallon)

BTU rating: This is typically found on the appliance’s specifications label and reflects the amount of heat required to operate it per hour.

BTU content of propane: A fixed value, roughly 91,500 BTU per gallon, indicating the amount of heat one gallon of propane produces.

Propane Tank Life

Estimate how long your propane will last with this formula:

Days of propane = Gallons in tank / ((Appliance BTU rating * Hours of use per day) / 91500)

Gallons in tank: The total capacity of your propane tank.

Hours of use per day: How long the appliance runs during a typical day.

Practical Conversion Table

Here’s a practical conversion table to help avoid the math:

Example of Propane Consumption Calculator

Let’s calculate the propane consumption for a standard 40,000 BTU water heater used for 5 hours per day:

Consumption (gallons per hour) = 40,000 / 91,500 ≈ 0.44 gallons/hour

Days of propane = 20 gallons / (0.44 gallons/hour * 5 hours/day) ≈ 9 days

This means a 20-gallon tank would approximately last 9 days under constant use conditions.

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