Camco 5500 watt elements - Home Brew Forums

 Home Brew Forums > Camco 5500 watt elements

10-22-2012, 07:00 PM   #1
Mobtown
Recipes

Oct 2012
Posts: 2

I am looking to go all electric on my next HLT which will be 55 gallon SS. Does anyone have an formula for calculating the watts needed to heat this volume of water? I will not be boiling just heating to mash and sparge temp. Based on what I have read on the forum, it looks as though I will need 2-5500 watt Camco Low density elements but this may make the automation of the system more difficult? Any ideas?

10-22-2012, 07:38 PM   #2
sicklesr
Recipes

Oct 2012
Albany, NY
Posts: 138
Liked 3 Times on 3 Posts

Timeframes are required to calculate this.

Here's some ideas tho. I used 55 gallons FULL, going from 100*F to 155*F, with a timeframe of 30 minutes. The following calculations take into account NO losses from water to air, kettle to air, ect. This is obviously not possible, but it gives you a starting point.

We need to calulate the number of joules required by the following formula.
Q=cm(dT)
where c = 4.186 J/g (Pure Water)
m = mass (in grams)
dT = Change in Temp (in degrees C)

Q=(4.187 J/g)*(207,900g)*(30*C)
Q= 26,108,082 J

Then since 1 watt = 1 J/second,

Watts = 26,108,082 / (30minutes*60Seconds)
Watts = 14,504

I entered the formulas into Excel, so if you want to change the variables, just let me know.

10-22-2012, 08:05 PM   #3
crazyirishman34

Recipes

Aug 2010
Newton, MA
Posts: 1,811
Liked 87 Times on 76 Posts

You can control multiple elements from one PID. You can either use one SSR rated for the total amp draw or use one SSR per element. One other thing to consider is that two 5500 watt elements max out a 60 amp circuit.

10-22-2012, 08:06 PM   #4
mateomtb
Recipes

Jan 2011
Pine, Co
Posts: 123
Liked 8 Times on 8 Posts

This is what you want. This isn't mine but I got it from some thread on here a long time ago that I can no longer find.

10-22-2012, 08:08 PM   #5
tre9er

Recipes

Jan 2012
Lincoln, NE
Posts: 4,371
Liked 242 Times on 197 Posts

Quote:
 Originally Posted by mateomtb This is what you want. This isn't mine but I got it from some thread on here a long time ago that I can no longer find. calculate heating time spreadsheet
I also use that. It will tell you how long from temp to boil, temp to temp, wire size, breaker size, etc.
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