Diversity for electric combi boiler

[mmcg]

Hi all

I am struggling to find any information on wether any diversity should be applied to an electric combi boiler circuit in a domestic dwelling, i was hoping someone could help me with this?

Any help is much appreciated

Mick

 

[keniff]

It's normally fused at 3 amps, so it's a very small load, i would say there is no diversity on it though

 

[mmcg]

Sorry i probably did not explain that very well. The homes in question are all electric i.e. no gas supply so it will be an electric central heating system (what i believe is referred to as a 'wet system') using a 9kW rated electric combi boiler

 

[Rauer]

Chuck it on and clamp meter it!

 

[keniff]

Ah yes I wouldn't fuse that down to 3amps lol. As far as I'm aware there would be no diversity as it is either running or not and heat is controlled by the flow rate of the water, could be wrong. I would do as post before says clamp it!

 

[SPARTYKUS]

No diversity.

 

[mmcg]

Thanks for the reply, my original thinking was it would have no diversity but could not find any concrete proof of this.

 

[nick611]

don,t worry too much they won,t be able to afford to turn it on anyway

 

[keniff]

I know I'm in and out our shower now after the 8 percent rise lol!

 

[Taylortwocities]

Thanks for the reply, my original thinking was it would have no diversity but could not find any concrete proof of this.

OSG, read the section on diversity:

6. Water Heaters (thermostatically controlled) - No diversity allowable.