What's your monthly SCOP

NedS

There is some debate around whether a legionella cycle is required with a closed pressurised system. The legionella bacteria would have to enter the system in the first place, and this most commonly occurs through vented header tanks in the loft space. I'm not running a regular legionella cycle and only heat our DHW tank to 45C. If we have negative electricity on Agile, then I give the DHW tank a blast, but otherwise don't worry about it. My DHW COP in summer is typically 3 to 3.5 (mine is lower than it could be as I also have to heat a 50L buffer tank in the primary return).

akwexavante

I agree, if i could change it to once a month or off altogether i would but I'm told i can't on this system. I can change the day of the week and time only.

NedS

akwexavante said:

I agree, if i could change it to once a month or off altogether i would but I'm told i can't on this system. I can change the day of the week and time only.

Annoying. I'd keep changing the day or time back and forth so it never triggers. At least I can turn mine off.

QrizB

This thread has been quiet for a bit, but I thought I'd bump it to share the link to the new "Octopus Cosy Heat Pump Dashboard:

https://octopus.energy/cosy-heat-pump-performance/

Here are the current statistics:

And the blog about the dashboard's development:

https://octopus.energy/blog/making-of-cosy-dashboard

zxzxzx

Cosy 6 installed end of April so first full month. Bill £36, credit for solar £33 actual cost for month £3.13 using Cosy tariff and batteries, sunny spell at the end of the month meant hot water only.

Cop just above average compared to above. Not unhappy to have had calor combi removed!