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Old 03-29-2013, 07:34 PM   #1
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Default help w/ ideas on my 1st e-brew

at first i was thinking of a rims tube because i like the portability. then i changed my mind to build a electric boil kettle instead. im cheap and thing the stainless pipes are expensive and i dont need to do a tube.

i see a lot of cool looking recirculating e-biab. now i need recommendations on power. how about (2) 3500w 240v at 120v (875w) = 1750w?

http://www.homedepot.com/p/t/1002072...2#.UVXcxxdaySo

how can i wire 2 of these up using 1 pid at 120v? i have a pid and a 40 ssr on the way. i need enough power to do a rolling boil in 30 min. or less w/ a 6 gal. batch

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Old 03-29-2013, 07:39 PM   #2
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What size/type of pot do you have? I had an 8 gallon kettle that even insulated couldn't boil on 1500 watts. Why go with the 240v elements at all? Why not 2 1500 watt? My current build is going to be using 2 2000watts, but I don't know if you have 20a circuits...

More info would be helpful

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Old 03-29-2013, 07:57 PM   #3
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i was thinking about 120v elements but i may be going to 240 in the future for even more power. my kettle is also 8 gallons.

i might take up on your advice and try these:

http://www.toolboxsupply.com/water-h...500w-120v.html

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Old 03-29-2013, 08:19 PM   #4
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If you're going to go for 240V, why not go for the ULWD 5500W 240V Camco elements? Even at 120V you can get 2750W. Do you have a 25 or 30A circuit?

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Old 03-29-2013, 09:03 PM   #5
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i havent got the circuits, yet. so if i went with 2 2750w 120v elements, do i need 2 30a circuits?

i saw this guys build and i might be doing it similar but a little simpiler w/ out all the lights and just 1 emerg. stop

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Old 03-29-2013, 10:00 PM   #6
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I don't think they make 2750W 120V heater elements. I got this number because:

The 5500W elements can only produce this much power when operating at 240V. If you cut the voltage in half, to the normal 120V your wall receptacle provides, your power drops by a quarter (to 1375W). Since you have two, your can deliver 2750W. Assuming they are on the same circuit:

I=P/V
=2750W/120V
=22.9A

A chugger pump draws about 1.3A at 120V, so if you are working with one, you will be drawing somewhere in the neighborhood of 24.2-24.5A or 25.5A if using two pumps (then the minor additions of lights, your PID controller, etc...). It would be best to run this on a 30A circuit just to be safe (no need for multiple circuits).

Check your control box and see if you have any 30A circuits outdoors (or wherever you brew). This will be shown on the breaker. If you don't have a 30A circuit, or there isn't one where you brew/are planning to brew, you'll need to have an electrician come in and wire one up for you (this can be done by yourself, and inspected by an electrician, but I don't recommend it, especially if you have no professional experience in the field). If you have to do get one put in, you might as well get him to install a 240V, 30A circuit, so that you don't have to deal with 120V at all.

I'm relatively new to all of this electrical stuff as well, so I'm not sure everything right there is 100% correct. I'll leave it to someone more qualified to confirm what I've said here.

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Old 03-31-2013, 01:49 PM   #7
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Quote:
Originally Posted by inda_bebe View Post
i havent got the circuits, yet. so if i went with 2 2750w 120v elements, do i need 2 30a circuits?

i saw this guys build and i might be doing it similar but a little simpiler w/ out all the lights and just 1 emerg. stop
if you don't have the circuits / are installing new ones, why not just install a 220 @ 30 amps and be done with it?
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Old 03-31-2013, 02:03 PM   #8
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Quote:
Originally Posted by JayMac
If you're going to go for 240V, why not go for the ULWD 5500W 240V Camco elements? Even at 120V you can get 2750W. Do you have a 25 or 30A circuit?
If you run a 5500w 240v element at 120v you get 1/4 the power. I.e. it will be 1375w. Read through the Electrical Primer that's stickied at the top of this forum.
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Old 03-31-2013, 08:24 PM   #9
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Quote:
Originally Posted by stlbeer

If you run a 5500w 240v element at 120v you get 1/4 the power. I.e. it will be 1375w. Read through the Electrical Primer that's stickied at the top of this forum.
He's using two elements though, 2x1375W=2750W
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Old 04-01-2013, 02:37 PM   #10
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Quote:
Originally Posted by JayMac View Post
He's using two elements though, 2x1375W=2750W
Ok, I missed the part where you stated the 1375 watts.
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