How Much Propane Does A Tankless Water Heater Use?

April 8, 2023

How Much Propane Does A Tankless Water Heater Use?

Depending on the size of your tankless water heater and the amount of time it's running, it can use anywhere from 10 to 100 gallons of propane per month. Knowing this can help you plan accordingly and make sure that you have enough propane on hand for your needs.

How to Calculate Your Monthly Propane Usage

The way that a tankless water heater uses propane is based on its BTU rating and flow rate. The higher the BTU rating, the more hot water it can provide.

However, this also means that you'll need to consume more propane when using your unit for longer periods of time. For example, if your unit is rated to provide 90,500 BTUs, it will require about one gallon of propane when running for an hour.

Your usage will vary based on the temperature of your environment, your household size, and the rated capacity of your tankless water heater. It's important to consider these factors so that you can ensure that your water heating system is functioning at peak efficiency and you're getting the most out of your propane consumption.

How to Determine Your Typical Propane Consumption

It's very easy to get an estimate of your average propane consumption for your tankless water heater. The key is to keep track of your household’s usage habits and record the number of gallons used each month.

This information will give you an idea of how much propane you need to allot for your tankless water heater, and will also allow you to create a budget that's realistic for your family. This will help you reduce your overall propane costs and save for other household expenses.


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