- Hi guys, my boiler has a 1500 watt element, at 240 volts its pulling
6.32 ams. My mate "an electriction" gave me a 2000 watt lamp
controler, i wired it in temportaly, and can adjust the wattage to
where ever i want, i found that 800 watts (3.4 amps)was a nice
refluxing speed.he also supplied me with a contactor and a thermal
switch, so it would switch over automatically at the set temperature,
the lamp controller is made by HMC, and has a bypass switch on it and
a manual dial, i took the amp readings with my digital clamp meter.