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 Home Brew Forums > All Grain Apartment Brewing: Will a 1500W/120V element boil 6 gallons?
01-07-2013, 10:29 PM   #11
tektonjp
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Quote:
 Originally Posted by lemy So I am working on putting a 1500 watt element into my keggle HLT. I only want to get 10-12 gallons of water up to mash temps (170F) I plan to plug my temp controller into a timer, so I don't care about how long it takes, but my question is, will a 1500 watt element get 10-12 gallons up to mash temps? I have a keggle, I do plan to insulate the outside, and use a lid. I'm only trying to save on propane costs and I do not want to go to the expense of buying 20 feet of 10 gauge wire, a 240 circuit breaker, connectors and the hassle of installation, not to mention, I would like to remain somewhat mobile if I need to, so 1500 watt is the only reasonable size.
10 gallons 45F to 170F with 1500 watts = 128 minutes

There's a spreadsheet floating around somewhere here with the formulas.
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01-08-2013, 12:20 AM   #12
lemy
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 counts as heat loss

Quote:
 Originally Posted by tektonjp 10 gallons 45F to 170F with 1500 watts = 128 minutes There's a spreadsheet floating around somewhere here with the formulas.

Thanks for the response, but does the equation count for heat loss ? I understand 128 minutes in the perfect world where there is no heat loss, but in a 50 degree garage with my feeble attempt at insulation...

Just looking to see if anyone has experience with it.
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01-08-2013, 12:41 AM   #13
ryane
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 Originally Posted by BMGfan Hey folks, The apartment does not have GFCI protection on the outlets, so I'll be relying on plug in GFCI adapters like this: http://www.grainger.com/Grainger/POW...5&cm_vc=HPPVZ3 If there's one available for 220 (I haven't seen one yet) then that may become an option, but for now I'm really only exploring the 120v option. Thanks guys
They do sell 240V gfci cords, links have been posted here before, just dont remember where, maybe someone else can??

if you got one of those you could get some long SO cord and run a line from your drier or stove outlet and use that to power a 4500 or 5500 element, which will make sure you cane boil/mash in a reasonable amount of time

01-08-2013, 02:29 AM   #14
tektonjp
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Quote:
 Originally Posted by lemy Thanks for the response, but does the equation count for heat loss ? I understand 128 minutes in the perfect world where there is no heat loss, but in a 50 degree garage with my feeble attempt at insulation... Just looking to see if anyone has experience with it.
Sorry, that's all I know. You said you didn't care how long it takes. Well, it will take over 2 hours, best case senario.If you insulate the HLT and put a lid on it, then it should be pretty darn close. You should you didn't care how long it takes. Well, it will take over 2 hours, best case scenario.
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01-08-2013, 03:25 AM   #15
lemy
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 worry

Quote:
 Originally Posted by tektonjp Sorry, that's all I know. You said you didn't care how long it takes. Well, it will take over 2 hours, best case senario.If you insulate the HLT and put a lid on it, then it should be pretty darn close. You should you didn't care how long it takes. Well, it will take over 2 hours, best case scenario.
2 hours is fine, my only concern is that, due to heat loss, 10-12 gallons would never actually get to 170F.
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01-09-2013, 11:51 PM   #16
tektonjp
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Throw a heat stick in an igloo.

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01-28-2013, 06:45 PM   #17
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Do you have a dryer? That uses probably a 30 amp circuit. Replace breaker with 30amp gfci and build yourself a 220v heatstick 4500-5000 watts with a replacment dryer cord. that is exactly what i did.

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02-02-2013, 04:20 AM   #18
KegWrangler
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Quote:
 Originally Posted by tektonjp Throw a heat stick in an igloo.
+1 on the igloo setup.

I tried a 1500W in a 7.5 gallon SS pot and it never gets to a boil. I can get it there with help from the stove top but it loses so much heat that if I turn the range off the boil stops.
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02-02-2013, 11:18 AM   #19
brewmastercontrols
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Quote:
 There's a spreadsheet floating around somewhere here with the formulas.
We have a page on our website that allows you to calculate various things related to electric brewing.

Electric Brewing Calculator

It is basically an online version of the spreadsheet referenced above.
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02-02-2013, 08:32 PM   #20
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I have been using a Butterball Turkey Fryer, which uses a 1650 watt direct immersion element. Getting to a boil with a full pot of 6 gallons of water was marginal at best, as you near boiling, the heat loss from evaporation and radiation through the uninsulated tub was substantial. I decided that the sleek stainless steel look of the turkey fryer had to take a back seat to functionality. I had a big roll of Mylar faced foam insulation leftover from building my house. I wrapped the fryer and lid with this, and with the lid closed, I could reach a boil with relatively little heat loss, but it still took what seemed like forever.

Next step was to insulate the cavity between the tub and the housing. Since the heating element and all electrical wiring were detachable as a unit for cleaning, I could just stuff fiberglass into the space inside the cavity. Back of the envelope calculations for boiling times were reasonable, about an hour to Mash Temp, and another hour to boil. Once boiling, it would boil over if the lid was completely closed, and peter out if fully opened, so I left my stirring spoon across the top to keep the lid open an inch or so, which allows a gentle rolling boil. The basket also come in handy to keep the grain bag off the heating element.

I did an all-grain Porter with the setup, it just doesn't quite have the muscle to heat the Strike water as rapidly as I would have liked, but I managed to make some pretty good beer, despite its limitations. I have also done a couple of extract/partial mash brews with it.

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