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Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > ebay aquarium temp controller build
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Old 12-30-2012, 02:24 AM   #3201
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Wouldn't this one work? It's in degrees fahrenheit

http://www.ebay.com/itm/AC-110-120V-...item3a6626468c
Sure, but isn't that single stage?
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Old 12-30-2012, 02:32 AM   #3202
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Just because it has a lower contact rating doesn't mean considering one is dumb. I have one of these controlling my keezer and two controlling my HERMS. As long as you only need single stage and you're not switching anything over 5A, these actually have several advantages over the STC-1000. They are cheaper, easier to program, have more programming options, fahrenheit readouts, and SS temp probes.
I lost this link, could someone direct me please? Thx!
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Old 12-30-2012, 08:00 AM   #3203
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So which one is it?
Looks like 6x8x3 to me. FWIW I used a 6x6x2 j-box, and the controller with one outlet was a very tight fit.

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I lost this link, could someone direct me please? Thx!
You provided a link to one two posts ago.
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Old 12-30-2012, 02:32 PM   #3204
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I lost this link, could someone direct me please? Thx!
http://www.ebay.com/itm/251083841214...84.m1497.l2649

This one is a little cheaper. It's the same single-stage Fahrenheit model. I'm waiting for one to come in. My gut is that these are not 5A models because I don't think anyone has reported getting an actual 5A version of this yet. I'm gonna pop it open as soon as I get it and confirm. It'll likely be another week before it arrives, though.
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Old 12-30-2012, 03:03 PM   #3205
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I can think of several applications where I only need temp control in one direction. Cooling would be all I need for my keggerator build. Do you think you could run that model in heat mode also? Heating would be all I need for an electric HLT. I'm also thinking of building a control panel with 2 of those single stage controllers in it so I could use my 2 stage to keep the fridge at lagger temps but use fermwraps to keep two more fermenters at ale temps.

Anyway, keep us posted!

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http://www.ebay.com/itm/251083841214...84.m1497.l2649

This one is a little cheaper. It's the same single-stage Fahrenheit model. I'm waiting for one to come in. My gut is that these are not 5A models because I don't think anyone has reported getting an actual 5A version of this yet. I'm gonna pop it open as soon as I get it and confirm. It'll likely be another week before it arrives, though.
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Old 12-30-2012, 03:45 PM   #3206
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I can think of several applications where I only need temp control in one direction. Cooling would be all I need for my keggerator build. Do you think you could run that model in heat mode also? Heating would be all I need for an electric HLT. I'm also thinking of building a control panel with 2 of those single stage controllers in it so I could use my 2 stage to keep the fridge at lagger temps but use fermwraps to keep two more fermenters at ale temps.

Anyway, keep us posted!
Yes, they can be switched back and forth between cooling and heating mode easily. I use one in my keezer, and two of them in the control panel for my HERMS, but my HERMS is gas. These aren't rated for the amperage needed to control even a small electric HLT, so you'd need to add an SSR, at which point you'd probably just be better off buying a PID instead.
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Old 12-30-2012, 03:49 PM   #3207
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http://www.ebay.com/itm/251083841214...84.m1497.l2649

This one is a little cheaper. It's the same single-stage Fahrenheit model. I'm waiting for one to come in. My gut is that these are not 5A models because I don't think anyone has reported getting an actual 5A version of this yet. I'm gonna pop it open as soon as I get it and confirm. It'll likely be another week before it arrives, though.
I'm not sure what you mean about a 5A version, that's simply what they're rated for. Mine have the same relays as the STC-1000, but that doesn't necessarily mean that the controllers as a whole are rated for the same amperage as the STC-1000. It might be the traces or other components that bring the rating down to 5 amps.
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Old 01-01-2013, 08:59 PM   #3208
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Looks like 6x8x3 to me. FWIW I used a 6x6x2 j-box, and the controller with one outlet was a very tight fit.



You provided a link to one two posts ago.
And since the link you provided didn't work I'm supposed to know that it's the same one, how....???
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Old 01-02-2013, 12:55 AM   #3209
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I think I read this sometime and the answer was the can heater, but anyone use this to control a space heater is that too many amps?

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Old 01-03-2013, 12:35 AM   #3210
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I'm not sure what you mean about a 5A version, that's simply what they're rated for. Mine have the same relays as the STC-1000, but that doesn't necessarily mean that the controllers as a whole are rated for the same amperage as the STC-1000. It might be the traces or other components that bring the rating down to 5 amps.
It's the relay contact current. It is what would be stamped as the rating on the relays attached to the board itself. As suspected, mine is not 5A. So, this is what is said:

Relay contact current: Rated 5A (in the actual ebay ad)
Relay contact current: Rated 10A (in the paperwork that came with the controller)
Relay contact current: 15A @ 125VAC (as stamped on the actual relays)

LOL
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