The higher the ef number.
Gas vs electric hot water heater calculator.
Use the calculator to see how many gpm you need.
A storage tank and a back up source of hot water either a gas or electric tank water heater to ensure a supply of hot water on cloudy and cold days they work one of two ways.
A gas or electric water heater s energy factor ef is a measurement that compares the amount of hot water the heater produces per day to the amount of fuel it consumes.
Typically a 70ºf 39ºc water temperature rise is possible at a flow rate of 5 gallons per minute through gas fired demand water heaters and 2 gallons per minute through electric ones.
It includes the cost of purchase and installation the cost of operation and factors in things like the lifetime of the heater.
This app will help you decide which water heater to buy.
Descaling a tankless water heater is important but it s also easy.
Compare to water heating.
Clothes dryer loads per week.
64 energy factor 0 92 electric 0 61 gas energy cost 0 06 per kwh 60 per therm.
It allows comparison between your existing water heater and any number of electric or gas tanked or tankless water heaters.
Average daily usage gallons per day gallons.
Water heater cost calculator.
Natural gas water heating.
A water heater s first hour rating fhr is the most important feature to consider when purchasing a new heater since it tells you how much hot water the heater can deliver in an hour of use.
The comparison assumes a storage tank water heater as the input type.
A tankless electric water heater has an average cost between 800 and 1 500 plus an additional 800 to 1 200 for installation.
Installation costs for an electric heater are 700 to 1 000 while the cost to install a gas heater ranges from 1 000 to 2 000 depending on whether you have an existing gas line and vent.
Water heating whmmbtu gasfact number 1.
Or have a tank system to get hot water elsewhere.
An electric hot water heater ranges in costs from about 300 to 700 while a gas heater ranges from 400 to 800.
I doubt you will need one bigger than 6 6 but check just to make sure.
Cost of a gas hot water heater gas water heater costs also depend on whether it has a storage tank the unit s size and the difficulty of the installation.
We compared gas vs electric tankless water heaters the result.
Quantity of water heaters to be purchased unit s 1 unit see assumptions for various daily water use totals.
Use this calculator to compare natural gas versus other fuels and discover the environmental advantages of using natural gas in your home.
