I LIVE IN A 3 STOREY HOUSE. THE WORKINGS FOR THE BOILER THE IMMERSION HEATER AND ALL THINGS CONNECTED TO THE WATER SYSTEM ARE ON THE TOP FLOOR. I AM NOT SO GOOD ON MY LEGS THESE DAYS AND MAINLY LIVE ON THE GROUND FLOOR. WHAT I WANT TO DO IS PUT A REMOTELY CONTROLLED SWITCH ACROSS THE INCOMING POWER ...