Hey guys, I have a possibly unique situation and am looking for some direction/suggestions. I currently am running a 40m horizontal loop lengthened by about 20ft or so to tune easier on 80m. I realize it's not efficient on 80, but anything is better than nothing and it works fine for me. I also have an AL-811 amp that tunes to right around 700w on 40m. My issue is a point of use, tankless water heater in my master bathroom. The master is located a long way from the main gas water heater so I installed aeemax tankless water heater. I will say this. It works great, almost instant, endless hot water at my two master sinks. That's all we use it for, teeth brushing and hand washing. Enough of the boring stuff. So.... when i get the amp tuned up and begin transmitting on 40m only, the relay in the tankless water heater buzzes and shorts out in just a few minutes. I realize this is an RFI issue. It doesn't happen with 100watts , but only when the amp is on. The obvious solution is not to use the amp on 40m. But I want to, or I wouldn't have bought it. So aside of not using the amp on 40m, is there any suggestions that y'all might have? I've coiled/choked the power line to the water heater, realizing it's not coax.... that didn't do anything. I've purchased some clip on ferrite, realizing again this isn't coax, and I'm going to try that too. Any other suggestions??