Average daily usage gallons per day gallons.
Water heater propane usage.
A family consisting of 3 to 4 members will need to spend 55 dollars a family consisting of more than 5 members need to spend 77 to 88 each.
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Annual usage will also depend on the efficiency of your house.
The comparison assumes a storage tank water heater as the input type.
With this propane tankless water heater not only can you enjoy hot showers but you can also use the water to boil your chicken and broccoli for dinner.
Then you will use approximately 5 gallons per month person.
Typically a hot water heater that uses a tank will run for three to five hours per day.
To calculate the annual operating cost of a propane water heater you need to divide 41 045 by the heater s energy factor and multiply the result by 365 and the fuel cost per british thermal unit.
How much gas does a hot water heater use.
Conversely the average 50 gallon electric storage tank water heater has an average first hour delivery rating of just 64 gallons while a 50 gallon heat pump water heater averages about 67 gallons.
So based on the price you can say that you will need to spend 33 monthly for a family of two.
Propane tankless water heaters provide an endless supply of hot water averaging over 200 gallons hour.
64 energy factor 0 92 electric 0 61 gas energy cost 0 06 per kwh 60 per therm.
So a 4 000 watt heater used for three hours a day at 10 per kwh will cost 1 20 per day about 36 50 per month or 438 per year.