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Overnight electricity used 29kWh @ 8.863p/kWh = £2.57027

Storage Heat 1 2.0kW
Storage Heater 2 3.0kW
Water Heater Top 3.0kW Water Temp 50C
Water Heater Bottom 3.0kW Only for Boost
Large Freezer 1.2kW Averaged over 24hrs
Large Fridge 0.8kW Averaged over 24hrs

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On 01/12/2020 08:56, jon wrote:
Overnight electricity used 29kWh @ 8.863p/kWh = £2.57027

Storage Heat 1 2.0kW
Storage Heater 2 3.0kW
Water Heater Top 3.0kW Water Temp 50C
Water Heater Bottom 3.0kW Only for Boost
Large Freezer 1.2kW Averaged over 24hrs
Large Fridge 0.8kW Averaged over 24hrs


I would swop over your top and bottom heaters, you only want to heat the
top for boost.

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On Tue, 1 Dec 2020 10:30:18 +0000, Andy Bennet wrote:

Water Heater Top 3.0kW Water Temp 50C
Water Heater Bottom 3.0kW Only for Boost

I would swop over your top and bottom heaters, you only want to heat the
top for boost.

Yep amd 50 C isn't really hot enough, doesn't relaibly kill
legionella.

--
Cheers
Dave.

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On Tue, 01 Dec 2020 10:30:18 +0000, Andy Bennet wrote:

On 01/12/2020 08:56, jon wrote:
Overnight electricity used 29kWh @ 8.863p/kWh = £2.57027

Storage Heat 1 2.0kW Storage Heater 2 3.0kW Water Heater Top
3.0kW Water Temp 50C Water Heater Bottom 3.0kW Only for Boost Large
Freezer 1.2kW Averaged over 24hrs Large Fridge 0.8kW
Averaged over 24hrs


I would swop over your top and bottom heaters, you only want to heat the
top for boost.


Manual boost is not used during the night, so is not counted in used kWhs.

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On Tue, 01 Dec 2020 10:39:35 +0000, Dave Liquorice wrote:

On Tue, 1 Dec 2020 10:30:18 +0000, Andy Bennet wrote:

Water Heater Top 3.0kW Water Temp 50C Water Heater Bottom 3.0kW
Only for Boost

I would swop over your top and bottom heaters, you only want to heat
the top for boost.

Yep amd 50 C isn't really hot enough, doesn't relaibly kill legionella.


Its worked ok for 20 years.

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On 01/12/2020 10:30, Andy Bennet wrote:
On 01/12/2020 08:56, jon wrote:
Overnight electricity used 29kWh @ 8.863p/kWh = £2.57027

Storage HeatÂ*Â* 1Â*Â*Â* 2.0kW
Storage Heater 2Â*Â*Â* 3.0kW
Water Heater TopÂ*Â*Â* 3.0kWÂ* Water Temp 50C
Water Heater Bottom 3.0kWÂ* Only for Boost
Large FreezerÂ*Â*Â*Â*Â*Â* 1.2kWÂ* Averaged over 24hrs
Large FridgeÂ*Â*Â*Â*Â*Â*Â* 0.8kWÂ* Averaged over 24hrs


I would swop over your top and bottom heaters, you only want to heat the
top for boost.

Depends what you mean by "boost"

I'd use the top heater most of the time, and only turn the bottom one on
when I wanted a bath. No need to heat the bottom of the tank at all most
of the time - half a tank should be OK or a shower.

Andy

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On 01/12/2020 16:09, Vir Campestris wrote:
On 01/12/2020 10:30, Andy Bennet wrote:
On 01/12/2020 08:56, jon wrote:
Overnight electricity used 29kWh @ 8.863p/kWh = £2.57027

Storage HeatÂ*Â* 1Â*Â*Â* 2.0kW
Storage Heater 2Â*Â*Â* 3.0kW
Water Heater TopÂ*Â*Â* 3.0kWÂ* Water Temp 50C
Water Heater Bottom 3.0kWÂ* Only for Boost
Large FreezerÂ*Â*Â*Â*Â*Â* 1.2kWÂ* Averaged over 24hrs
Large FridgeÂ*Â*Â*Â*Â*Â*Â* 0.8kWÂ* Averaged over 24hrs


I would swop over your top and bottom heaters, you only want to heat
the top for boost.

Depends what you mean by "boost"

I'd use the top heater most of the time, and only turn the bottom one on
when I wanted a bath. No need to heat the bottom of the tank at all most
of the time - half a tank should be OK or a shower.

Unless you're on Economy 7 in which case you run the bottom heater on
off-peak.

--
Max Demian

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On Tue, 1 Dec 2020 12:35:55 -0000 (UTC), jon wrote:

I would swop over your top and bottom heaters, you only want to
heat
the top for boost.

Manual boost is not used during the night, so is not counted in used
kWhs.

But if the boost heater is at the bottom you heat the whole tank when
you use boost, not just the top.

--
Cheers
Dave.