Combi Boiler Electricity Usage

Smiley_Dan

espresso wrote: »

Nah, try halving the wattage again and you would be much closer and that would be with the pump and max flow!

Ok, but I'm just going by the measurements of electrical import. Granted, *every* time I have measured something else may have clicked in at exactly the same point, but that's unlikely.

My *pump* says it should be drawing 88W.

Maybe it's not just the pump?

matelodave

Usually but not always other stuff is running at the same time as the pump - ideally you should just monitor the pump supply independently of everything else if want an accurate assessment of it's consumption.

Mine says 40w on the label but my energy monitor which just monitors my heating reckons it's only about 30 (the pump also runs when the heating isn't actually running so it's easy to tell how much power the pump is consuming) but that's measured using a clamp around the incoming mains to the heating unit which can't take into account the powerfactor of a highly inductive pump..

Nada666

My combi-boiler uses nearly a kWh per day of electricity if left on. As I use only 23 or 30 kWh of gas per week I do switch it off. Halves its cost.

Mind you, it isn't my boiler it is my landlord's.