# Octopus Cosy 9 Vs 9kW Daikin Vs boiler

**URL:** <https://community.openenergymonitor.org/t/octopus-cosy-9-vs-9kw-daikin-vs-boiler/27981>\
**Category:** Heatpump\
**Tags:** heatpumpmonitor\
**Created:** [13 February 2025 10:16 UTC](https://community.openenergymonitor.org/t/octopus-cosy-9-vs-9kw-daikin-vs-boiler/27981 "2025-02-13T10:16:10Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![Ringi](https://community.openenergymonitor.org/letter_avatar_proxy/v4/letter/r/5daacb/32.png) [@Ringi](https://community.openenergymonitor.org/u/Ringi)\
**Post date:** [13 February 2025 16:50 UTC](https://community.openenergymonitor.org/t/octopus-cosy-9-vs-9kw-daikin-vs-boiler/27981/11 "2025-02-13T16:50:07Z")

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> [@SarahH](#):
>
> So if you see lots of indifferent/bad reports of Octopus or Daikins that may be because so many more of theirs/them have been installed, and doesn’t necessarily mean that they are a risky choice.

Mostly people don’t understand that saving many £k of capital costs can justify a lower COP, eg pay off the mortgage or invest the saved installation costs.

Running costs can be **lower** with a lower COP if the saved installation costs is used to increase home batteries

But the Daikins 9kw seems **never** to be a good option, unlike all the other heatpumps Octopus offers.

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