Wall convector heater convector heater series dimplex plx max heat output 1 500 watt heat settings 4 heating power 1500 watt operating voltage 230 v installation wall mounted features thermostat function frost protection safety feature spray water proof protection class ip x4 upper temperature limit 35 c lower temperature limit 5 c dimensions 686 x 43 x 115 cm weight 66 kg detachable wall mounting frame