I'm trying to work out the power consumption of an electric towel rail and would appreciate some input to see if i've got this right.
The towel rail is a water filled rail on the central heating circuit, only used when the central heating is off.
It is fitted with a 250w heating element and a Kudox Electronic Heating Element Contoller.
The controller is set to it's lowest power setting, which from the datasheet (linked above) is 40%
From what i can understand about the controller, it has no temperature feedback, so if i set it to 40% it will just switch the element on and off so that it's on 40% of the time or power it to 40% of its output on a constant basis.
Therefore, if i want to calculate running cost, is it quite simply 40% of 250w per hour or am i missing something?
I want to compare (a) the cost of running the towel rail as it is at the moment with (b) powering it for 1 hr in the morning and 1 hr in the evening. I expect option 2 to be cheaper, unless the Kudox controller works in a way i don't understand.
The towel rail is a water filled rail on the central heating circuit, only used when the central heating is off.
It is fitted with a 250w heating element and a Kudox Electronic Heating Element Contoller.
The controller is set to it's lowest power setting, which from the datasheet (linked above) is 40%
From what i can understand about the controller, it has no temperature feedback, so if i set it to 40% it will just switch the element on and off so that it's on 40% of the time or power it to 40% of its output on a constant basis.
Therefore, if i want to calculate running cost, is it quite simply 40% of 250w per hour or am i missing something?
I want to compare (a) the cost of running the towel rail as it is at the moment with (b) powering it for 1 hr in the morning and 1 hr in the evening. I expect option 2 to be cheaper, unless the Kudox controller works in a way i don't understand.
