Immersion hot water not lasting long enough!

[LeeFL]

Are you sure on that? It looks like he's on a simple, 12 month Fix, charging the same, night, and day rate..

This has got wondering. Although the tariff shows that there is a night and day rate, but doesn’t mean to say it’s actually giving me off peak? As on screenshots above with the kWh data per pink bar does not state “off peak” where as my friend’s does, and his home is using the new heat pump. But my data doesn’t highlight ‘off peak’ ??

 

[StephenStephen]

This has got wondering. Although the tariff shows that there is a night and day rate, but doesn’t mean to say it’s actually giving me off peak? As on screenshots above with the kWh data per pink bar does not state “off peak” where as my friend’s does, and his home is using the new heat pump. But my data doesn’t highlight ‘off peak’ ??

Worth checking this with Octopus

 

[LeeFL]

I would suggest don't ask Google - ask Octopus, in writing (email for example).

If the period of cheap rate night time is longer than the period the immersion comes on, and you haven't enough hot water, then I'd suggest
-match the hot water timer to your cheap rate tariff timer
-Check/raise the immersion heater stat (as suggested by others above)

I can’t see where I can change that, the only thing I can appear to do is set the clock to correct time and the button next to where it says ‘Water heating’: On or Off.

 

[LeeFL]

Worth checking this with Octopus

Think I’m going to give them a call to speak to someone about this.

 

[StephenStephen]

I can’t see where I can change that, the only thing I can appear to do is set the clock to correct time and the button next to where it says ‘Water heating’: On or Off.

Maybe have a look at the post 23 link from rodders53

 

[Harry Bloomfield]

Not completely sure but post 46 seems to clearly show different rates for night and day.

You're correct, but I would still double-check with Octopus.

 

[LeeFL]

I’m definitely going to give Octopus a call and see what they say. Also, tomorrow I have a Clarion ‘operative’ coming in the morning regarding the hot water pressure, so I will be sure to update here what happens, hopefully will be a fix! But I don’t hold out much hope as the operatives from Clarion are usually miserable and don’t like to go into detail - well tomorrow I’ll be pressing for detail as best as I can at least.

 

[StephenStephen]

Looking at the maths from one of your screenshots: roughly 30kWh costing roughly £4 means you're paying just over 13p/kWh which strongly suggests that the economy 7 tariff is working as it should be.

 

[LeeFL]

Looking at the maths from one of your screenshots: roughly 30kWh costing roughly £4 means you're paying just over 13p/kWh which strongly suggests that the economy 7 tariff is working as it should be.

That’s what I was lead to believe that I’m on an economy 7 tariff, still might be worth me calling Octopus to see if there is a better tariff to go on.

Just taken a photo of the info stuck on the water tank. It says it was produced in Feb 2023

 

[Murdochcat]

30 kWh approx per night is way way more than an immersion would use to fill the entire tank , so something isn’t adding up here

Are you sure the E7 is heating the lower immersion?

 

[LeeFL]

30 kWh approx per night is way way more than an immersion would use to fill the entire tank , so something isn’t adding up here

Are you sure the E7 is heating the lower immersion?

I have no idea, but the operative from Clarion coming tomorrow I hope to get him to check all this. But when you say 30 kWh per night it’s actually showing the total usage for that day not just during the night

 

[trojanhawrs]

30 kWh approx per night is way way more than an immersion would use to fill the entire tank , so something isn’t adding up here

Are you sure the E7 is heating the lower immersion?

That is the total energy I suspect, so includes storage heaters etc.

 

[Murdochcat]

That is the total energy I suspect, so includes storage heaters etc.

Looking at the graph if the immersion heater and storage heaters switched on together I would a higher consumption for about 3 or 4 hours. The immersion is probably 3 kw and storage heaters are going to be 1 to 3 kw.

Still think there’s more to this

 

[LeeFL]

Looking at the graph if the immersion heater and storage heaters switched on together I would a higher consumption for about 3 or 4 hours. The immersion is probably 3 kw and storage heaters are going to be 1 to 3 kw.

Still think there’s more to this

I suspect like you there could be more to this too, what it is exactly I don’t yet know.

The heaters are 1kW if this helps, the below screenshot info suggests mine are app-controlled, they are not, I think those are only for the WiFi-enabled models

 

[dilalio]

...unless setting the thermostats higher effectively shifts electricity use into a lower rate time of day, by reducing the need to boost at high rate times.

Like I said... Balance