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I'm trying to find a good relay to switch a heating element from 120V to 240V. It should be SPDT and handle at least 30 Amps. I want it to have a 12 volt coil so I can easily control it via automation. I'm finding a lot of 30A SPDT relays, but I think they are for 12V DC Automotive uses and...

I scavenged this relay and I think it will work as a main kill switch to a water heater element, but I wanted to get a confirmation. Potter & Brumfield T92S7A22-120 Here's the datasheet. It says max contact current rating is 30A and max contact voltage rating is 600V. It's a DPST...

I just scored the attached for a song. I purchased the spa panel a few months ago, but today came across another 50A GFCI breaker and some 50A outlets at a salvage yard. Also included was a Hubbell 560R9W which is a 5 wire 60A water proof outlet. Since the 560R9W is 5 wire, could I run...

I want to get a fresh new element for my Hot Tub RIMS Tube project that's free of stewed flesh before I do my first brew with it. I also wanted to bump up the watts from 4000 to 5500 to help with on demand sparge/strike water. I have a few options for elements and wanted to see if there was...

I've been playing with the Arduino PID Library for my brewery control platform on and off the past few months. The PID Library author Brett Beauregard has just released his new Open Source (Code, Hardware, Design) PID Controller that functions just like all the other black box PID controllers...

No, not that thread again. Has anyone used a hot tub Heater Assembly for a RIMS tube?

Now that you have finished your brew stand, before you fire those burners up, wouldn't it be nice to protect the stand from the high heat? Your stand is probably made out of galvanized steel, stainless, or painted carbon steel. If it's galvanized steel, getting it hot is going to burn off...

I found these wires and plugs at a salvage yard today. Got all of it for $15. Was it worth it? I figure I can use the big outlet to run a line from my laundry room to the garage right next to it. The cables should be good for at least one end of a heating element line. Plugs are rated 2 x...

I just got an Arduino micro controller and I'm getting ready to integrate it into my HERMSish setup. I've been using a PID with a K-type thermocouple that works well with the PID controller. I've been reading around about the Ardunio and temperature control and it sounds like thermocouples...