Glass heater series klarstein ht max heat output 1 000 watt heat settings 1 heating power 1000 watt operating voltage 230 v room size 16 m maximum room size 40 m installations wall mounted free standing unit features thermostat power on light timer lcd display function frost protection safety features child proof spray water proof protection class ip 23 colour black upper temperature limit 50 c lower temperature limit 15 c dimensions 54 x