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How much money will a water heater timer save?
  
 Answer… $15 - $20 or more each month depending on how you use hot water and price of electricity.
see pie chart

Maybe this is too small for a big investor like you > but consider the return

  > The savings pays you a tax-free dividend each month forever.
  > The cost of electricity will go up, so the monthly dividend is guaranteed to grow.
  > $20 per month x12 months = $240 each year > which, at 14¢ per Kwh, is about 1 free month of electricity each year.
  > Your water heater appliance will last longer with fewer backflushes and replacements.
  > The entire DIY-ready project is made with locally-available, off-the-shelf parts that cost $50 -120 (excluding installation).
 
Here's the simple math:

My wife and I use a countdown timer to control our water heater 
                          > we spend approximately $18.38 per month to heat hot water.

1.) We run our ordinary 3500 Watt water heater a total of 1.25 hours per day. 
                        > which gives an average of 30 gallons hot water each day.

2.) This means we use: 3500 Watts x 1.25 hours = 4375 Watthours per day = 4.37 Kilowatthours = 4.375 Kwh per day.

3.) For an average month: 4.375 Kwh per day x 30 days = 131.2 Kwh per month.

4.) For an average month, we pay: 131.2 Kwh x 14¢ per Kwh = $18.38

 

Let’s compare $18.38 to the estimated cost printed on the side of our 30 gallon General Electric water heater:

1. The estimated annual cost for our GE water heater is $470-540 per year to operate full time.

2. Assume that GE has given an accurate estimate.

3. Divide $470 by 12 months = $39.16    -or-        Divide $540 by 12 months =  45.00

4. If we run our hot water heater full time, it will cost between $39 and $45 per month.


GE estimate    $39.00 per month

Actual cost   - $18.38

We save         $20.62 per month.

GE estimate    $45.00 per month

Actual cost   - $18.38

We save         $26.62 per month.


Also see how to figure Volts Amps Watts for your electric water heater
Small water heater How much does it cost to run a water heater:
3 hours is approximate daily run-time for a water heater [depending on usage and temperature of incoming water]

5500 Watts x 3 hours = 16,500 watt-hours or 16.5 Kwh per day
For a full 30-day month <=> 30 days x 16.5 Kwh per day = 495 Kwh per month for water heater electricity
Calculate cost <=> 495 Kwh x $.10 per Kwh = $49.50 + tax

@.10 Kwh 3 hours a day @ $.10 per Kwh
5500 Watt tank = $49.50 per month + tax
4500 Watt tank = $40.50 per month
3500 Watt tank = $31.50 per month assuming low usage
1500 Watt tank = $13.50 per month
@.12 Kwh      3 hours a day @ $.12 per Kwh
    5500 Watt tank = $59.40 per month + tax
    4500 Watt tank = $48.60 per month
    3500 Watt tank = $37.80 per month assuming low usage
    1500 Watt tank = $16.20 per month

Smaller water heaters have lower Watt elements > smaller water heaters are cheaper to run if family can conserve
Read 9 ways to save with a water heater
Try a water heater timer free
Family chart for setting water heater timer

How much will you save? Put in a timer and find out.
E-mail: info@waterheatertimer.org