Any 120V Setups for 10 Gal Batch? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Electric Brewing > Any 120V Setups for 10 Gal Batch?

Reply
 
Thread Tools
Old 10-10-2010, 03:18 PM   #1
JJWP
Recipes 
 
Feb 2009
Bloomington, Indiana
Posts: 85


So I've been lurking around various electric build posts for quite a while now, and I'm basically resigned to the fact that I would need 240V to go this route - which I do not have access to as I live in an old apartment building.

But, before I totally give up on this electric thing, I've got to at least ask:

Is there any reasonable way to boil 11-12 gallons on 120V?

- I'm not opposed to using multiple elements.
- I'm not opposed to waiting up to 60 minutes to get to boil from mash temps. I could spend that time cleaning equipment, etc
- I can wrap my keggle in reflectix insulation if that makes a difference
- I've got two dedicated 20amp circuits in the kitchen

The highest wattage 120V element I've been able to find online is this:
http://www.comfortgurus.com/product_...oducts_id/7096

Would one of these do the job (barely)? Is the super high density nature of this element a no no?

I don't know anything about electrical and I'm not interested in monkeying around with anything complex. I basically just want to electrically heat my BK so I can brew in the kitchen year round.

I would never dream of doing the complex electrical work some of you guys do, but it seems to me that the heating element piece is generally straightforward and safe if one follows a few key principles? (ie proper grounding, redundant GFCI protection, correct element installation, appropriate wire gauge, etc)

Thanks

 
Reply With Quote
Old 10-10-2010, 03:28 PM   #2
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,330
Liked 1765 Times on 1122 Posts


3000watts / 120v = 25 amps. No good. You can go with 2000 watt elements if you're sure that you can suspend any other usage on the 20a circuits. If your fridge is on one of them, you'll trip the breaker if you have the 2000 watt element running and the compressor kicks on.

I suspect even a single 2000w element used along with a stove burner would get a 10g boil going if you can fit the pot on there.
__________________
Welcome to BrewHardware.com. I love you.
New Stirplates are IN!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

 
Reply With Quote
Old 10-10-2010, 03:51 PM   #3
JJWP
Recipes 
 
Feb 2009
Bloomington, Indiana
Posts: 85

yeah I can definitely dedicate the two 20a circuits. The fridge is on one, but I don't mind unplugging it for a few hours if I need to (just wont open it).

do you think that 4000 total watts (2x2000w elements) would be enough to get a good boil for 12gal?

 
Reply With Quote
Old 10-10-2010, 03:55 PM   #4
JJWP
Recipes 
 
Feb 2009
Bloomington, Indiana
Posts: 85

I just went out and looked at the breaker box - there is a 50a breaker in there as well. I have no idea what it is for... the service main is a 100a switch btw.

 
Reply With Quote
Old 10-10-2010, 04:01 PM   #5
TheAleMaster
Recipes 
 
Jan 2009
Seattle, WA
Posts: 216
Liked 3 Times on 3 Posts


Here is a great spreadsheet that should answer all your questions about how much power and time to boil, time to temperature x, etc.

http://gnipsel.com/beer/software/cal...ctric-heat.xls

It used to be at a different site, but the guy built a new site.

 
Reply With Quote
Old 10-10-2010, 04:06 PM   #6
JJWP
Recipes 
 
Feb 2009
Bloomington, Indiana
Posts: 85

Quote:
Originally Posted by TheAleMaster View Post
Here is a great spreadsheet that should answer all your questions about how much power and time to boil, time to temperature x, etc.

http://gnipsel.com/beer/software/cal...ctric-heat.xls

It used to be at a different site, but the guy built a new site.
This is great thank you! Anyone know how accurate these calculations are? Is 95% a realistic efficiency?

 
Reply With Quote
Old 10-10-2010, 05:02 PM   #7
BargainFittings
Sponsor
HBT_SPONSOR.png
 
BargainFittings's Avatar
Recipes 
 
Nov 2008
Allen TX
Posts: 2,052
Liked 95 Times on 84 Posts


The 50 amp is most likely your electric stove if you have one.

 
Reply With Quote
Old 10-10-2010, 05:09 PM   #8
JJWP
Recipes 
 
Feb 2009
Bloomington, Indiana
Posts: 85

Quote:
Originally Posted by BargainFittings View Post
The 50 amp is most likely your electric stove if you have one.
No, I've got a gas stove. I pulled it out and there is no electrical hookup behind it at all.. maybe it is not actually hooked up to an outlet?

Here is another question: if I understand it correctly, it is ok to run a 240v element on 120, but you will only get 25% of the rated wattage?

So, if I want to "future-proof" my 120v boiler, should I look for a single 8000w 240v element? That way, it would run at 2kw on 120v and at 8kw on 240 if I ever get access to a 240v circuit?

Good idea, bad idea?

 
Reply With Quote
Old 10-10-2010, 06:46 PM   #9
passedpawn
Waste Allocation Load Lifter - Earth Class
HBT_ADMIN.png
 
passedpawn's Avatar
Recipes 
 
Apr 2009
☼ Clearwater, FL ☼
Posts: 26,540
Liked 7017 Times on 4154 Posts


Quote:
Originally Posted by JJWP View Post
No, I've got a gas stove. I pulled it out and there is no electrical hookup behind it at all.. maybe it is not actually hooked up to an outlet?

Here is another question: if I understand it correctly, it is ok to run a 240v element on 120, but you will only get 25% of the rated wattage?

So, if I want to "future-proof" my 120v boiler, should I look for a single 8000w 240v element? That way, it would run at 2kw on 120v and at 8kw on 240 if I ever get access to a 240v circuit?

Good idea, bad idea?
It is perfectly OK to run that 240V element on 120.
__________________
- Andrew

 
Reply With Quote
Old 10-10-2010, 10:53 PM   #10
wilserbrewer
BIAB Expert Tailor
HBT_SPONSOR.png
 
wilserbrewer's Avatar
Recipes 
 
May 2007
Jersey Shore, New Jersey
Posts: 9,690
Liked 1458 Times on 1109 Posts


For ten gallons you will need at least 3000w, or better yet 4000w. 2 elements at 120v 2000w works well if limited to 120v...if you can do 240, no problem w/ a 4500w or even a 5500w.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electrical Soldering setups, what do you have/what do you recommend Boerderij_Kabouter Electric Brewing 20 11-03-2010 06:43 PM


Forum Jump