bellinmi88
Well-Known Member
I came across some info when reading through a hot water heater element guide that might be helpful in determining a heating element size for an electric kettle.
Here is what I came up with:
((Batch Size x 8.25 x 1.0)(Temp Change)) *.293 = Element Wattage
Where:
8.25 = Weight of 1 Gallon of Water
1.0 = Specific Heat of Water
Temp Change = Difference in Tap Water Temp and Desired Temp (ie, boiling temp)
.293 is converting the product from BTU to Watts. This is based on 100% Efficiency and a 1 hour time interval.
Here is an example.
Batch Size 3 gallons
Tap Water Temp = 51 degrees
Boiling Temp = 212 degrees
Temp Change = 161 degrees
Anther way to look at it is:
(Batch Size x 8.25)(Temp Change)
_____________________________ x 60 Minutes = Time to Bring to Boil
(Element Watts/.293)
(3 Gallons x 8.25) (161)
___________________ x 60 Minutes = 56.37 Minutes to bring 3 gallons to a boil
(2500 Watt/.293)
Here is what I came up with:
((Batch Size x 8.25 x 1.0)(Temp Change)) *.293 = Element Wattage
Where:
8.25 = Weight of 1 Gallon of Water
1.0 = Specific Heat of Water
Temp Change = Difference in Tap Water Temp and Desired Temp (ie, boiling temp)
.293 is converting the product from BTU to Watts. This is based on 100% Efficiency and a 1 hour time interval.
Here is an example.
Batch Size 3 gallons
Tap Water Temp = 51 degrees
Boiling Temp = 212 degrees
Temp Change = 161 degrees
Anther way to look at it is:
(Batch Size x 8.25)(Temp Change)
_____________________________ x 60 Minutes = Time to Bring to Boil
(Element Watts/.293)
(3 Gallons x 8.25) (161)
___________________ x 60 Minutes = 56.37 Minutes to bring 3 gallons to a boil
(2500 Watt/.293)