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Discussion Starter #1
i just bought a jehmco heater with controller. just installed it.

i have question regarding cooling or heating mode.

basicall:

- i set my temp to 84 F
- differential should i put 1 (does this mean the temp, if its ever off, will be by 1 F only?)
- lastly, should i enter in heater mode? C1 or H1? cooling or heating mode?


its my first time using this kind of temp controller. advise would be appreciated! thanks
 

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Discussion Starter #5
yea sounds about right. ill go with your advice.

are you using a jehmco heater? how are you finding it? its my first time using heater with a controller. dont know the quality of this unit.
 

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Yes, I'm running the jehmco. I believe Tony and I commented on your thread when you asked about it. I have been running mine for 6 months now, synchronizing 2x250 w stealth heaters. I really like it. Temperatures are steady and I see at a glance on the digital display what the measured temperature is also.

Here's a pic of it in my stand:

 

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I just got mine this weekend and will be setting up once I get my damn tank noise and leaky bulkheads fixed. These tips will come in handy! I'll be running 2x500w heaters off of it.

Yeah, I peeled off the Jehmco sticker and it says Ranco....not that they were hiding anything cuz pretty well anyone who's seen the Ranco would recognize it. Jehmco basically put it together for aquarists so that its plug and play and I appreciate that.
 

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Discussion Starter #10
thanks for the helpful info guys!

its been a few days since i set it up. so far so good! i might get another for my 120 gal tank. im currently using 2 300 W fluval E heaters on that right now.
 

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thinking of getting a controller that able to plug two heaters....the one you got from Jehmco....which model?.....thanks in advance:)

Glad you like it. I'm hoping to get another one soon also. Dang, someone should arrange a GB and see if we can get a deal on these. (hint, hint). :D
 

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I believe it's the ETC-1R. You can buy one with 2 outlets (it costs more), but it isn't necessary (John at Jehmco told me that himself) as you can plug a multi-plug outlet into it (I can't remember for sure, but I think it only takes 2 prong and not grounded plugs though) and plug multiple heaters in (as you see in my pic) above. The lowest rating for the controllers is 1500 watts, so unless you exceed that, you'll only need the one controller and one plug.
 

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Thanks Garry for the info.....:)

I believe it's the ETC-1R. You can buy one with 2 outlets (it costs more), but it isn't necessary (John at Jehmco told me that himself) as you can plug a multi-plug outlet into it (I can't remember for sure, but I think it only takes 2 prong and not grounded plugs though) and plug multiple heaters in (as you see in my pic) above. The lowest rating for the controllers is 1500 watts, so unless you exceed that, you'll only need the one controller and one plug.
 
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