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Home > Green Savings Calculators

Green Savings Calculators




We provide you with calculators to help you with your needs
in the various research topics of Greencompletely.com. Here are
those calculators and links back to where they are used.



At Greencompletely.com we do the math. However,
if you need to make calculations for your
situation we provide the tools to make those calculations easy.
These tools are green calculators and will help you
find your savings and your return on investment.


Below are those calculators. There is also a
link back to the original research section they came from if you want
more information.
Please, give them a try and
let us know what you think. 



Calculator From Resource Conservation  Water  Shower: 

Calculator From Resource Conservation  Electricity  Vampire: 

Calculator
From Resource Conservation  Electricity  Light Bulbs: 
This green calculator is from
Resource Conservation  Electricity  Light Bulbs.

Light Bulb Calculator

Because bulbs have
different life expectancies, we will calculate a daily
cost of ownership based on "Initial Bulb Cost". Use the
"Set Up Costs" for initial one time costs (such as an
electrician or changing out a fixture). Don't forget
ballast replacement in your costs. Here are some average
life expectancies, you do not have to use them for your
calculations: 
Average life expectancies:


Bulb Type 
Life Expectancy(Hr) 

Bulb Type 
Life Expectancy(Hr) 


Incandescent 
1,000 

CFL 
10,000 


Halogen 
2,000  4,000 

T12 Fluorescent Tubes 
20,000 


Metal Halide 
12,000  20,000 

T8 Fluorescent Tubes 
20,000  30,000 


High/Low Pressure Mercury Vapor 
10,000  20,000 

T8 LED Tube 
35,000  45,000 


High/Low Pressure Sodium 
16,000 to 20,000 

LED Bulb 
25,000 to 50,000 






Calculator
From Resource Conservation  Water  Sink: 

Calculator From Resource Conservation  Water  Toilet: 

Calculator From Resource Conservation  Heat  Water Heaters: 
This green calculator is from
Resource Conservation  Heat  Water Heaters.
Calculators For Hot Water Heating:
Useful information for calculators:
This is a basic map of water temperatures across the nation.
Click on it to see an average in your area (EPA Site).


Typical elements for Water heater
(electric): 1,500 Watt, 2,000 Watt, 3,000 Watt, 3,800 Watt,
4,500 Watt and 5,500 Watt.
1 Therm is approx equal to 100 CCF of Gas. Slight difference between natural
gas and propane.
Most water heaters are set to 120 deg F from the factory (but you can adjust
them).
See how we Make the calculations.


Water Heat Cost Calculator:


Average Hot Water Recovery Rate:


How Many Showers Can We Take Before They Are Cold?

How Many Showers Can We Take Before Running Out Of Hot
Water?
To determine back to back showers possible with a small wait time,
enter the information below (use winter inlet temperature typically
5 to 15 deg F cooler than your average).
We suggest you measure your shower head
flow rate before you make this calculation. We assume shower is 100 deg F and no other hot water use during
this period.
See how we Make the calculations.

Standby Power Cost:

Standby Power Cost
We calculate the power loss based on a simple model. Pipes, valves,
connections and other factors cause additional heat loss. We have doubled
the theoretical loss to estimate a range of power loss.
See how we Make the calculations.

Water Heater Size:

Water Heater Size
When figuring out the water heater size, consider all the changes that
have happened and may happen in your household. If you have changed
out showerheads and faucet aerators, then chances are you may not need
as big of a water heater. Please, measure your
devices before you make these calculations.
Conventional wisdom is to look at your peak 1 to 2 hours of hot water usage during a day.
Consider how many showers, loads of
wash, loads of dishes, and total sink use during that peak time.
In addition, we ask that you look at what is realistic
and common usage (not the usage you might see once a year).
Then, we ask you to consider some wait times between those events.
You will be surprised just how big an effect a few minutes can have. To calculate the peak tank size, we assume
water heating in the winter months.


For this calculation
we assume shower use first.
We assume faucet use throughout
the two hours. Then, if the washing machine and/or dishwasher are
used you will wait a small amount of time after showers to use them.
You may also set a wait time after the dishwasher to start the clothes
washer. If you set the wait times to 0, that will mean you
start the dishwasher immediately after the last shower and start
the clothes washer at the same time as the dishwasher. By changing
wait times and other entries you can see the effect on your
"best fit" water heater.
Here we assume: Showers are 100 deg F, Sink use is 60% hot water, Dishwasher is
100% hot water, Warm cycle on Clothes washer is 40% hot water, Hot cycle on clothes
washer is 100% hot water. This calculator ignores leaks and pipe heat loss.

See how we Make the calculations.



This green calculator is from
Resource Conservation  Heat  Water Heaters.

Calculator from (Coming Soon): 

Calculator from (Coming Soon): 




These calculators are for informational purposes only. Your results may vary.
