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.
Water heater propane usage.
Annual usage will also depend on the efficiency of your house.
Propane tankless water heaters provide an endless supply of hot water averaging over 200 gallons hour.
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.
How much gas does a hot water heater use.
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.
So based on the price you can say that you will need to spend 33 monthly for a family of two.
Then you will use approximately 5 gallons per month person.
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The comparison assumes a storage tank water heater as the input type.
Propane gas water heater the rule of thumb here is that you will use a baseline of 5 gallons per month just to keep the water heater running.
Typically a hot water heater that uses a tank will run for three to five hours per day.
Quantity of water heaters to be purchased unit s 1 unit see assumptions for various daily water use totals.
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.
64 energy factor 0 92 electric 0 61 gas energy cost 0 06 per kwh 60 per therm.