Thanks for the replies guys. GaGrown that's the link I've been following. There's a couple of different 30 amp relays out there. The first one I got was a 240 volt 30 amp DPDT "double pole double throw". It didn't look exactly like the picture since it had double contacts, but I didn't thinl it would hurt. I hooked up the coil to a pigtail and plugged it into a 110 outlet it buzzed and viabrated. My wife probably would have liked it, but I went back to the store and got a 240 volt 30 amp DPNO. It looked just like the picture. I once again hooked up the pigtail to the coil just like the instructions and it humms. Now I'm no electrician, but I thought I could handle this. There's one more heavy duty relay available. The only difference from the one I just got is it is noted to be a 208VAC coil. Any input?