Heat pump or not!

[MyForest (David Bowen)]

Hi @JanP

Welcome to the OpenEnergyMonitor forum!

Here’s the post that gives you the information you are after:

Improve efficiency: Was it worth it?

Thanks @MyForest Looking at the minimum output at 35C for the 14 kW ecodan it looks like ~6kW at 7C outside temperature. With ~1.5kW elec input. If all your TRV’s were open it looks like you could absorb that heat at 35C flow temp and keep the heatpump running continuously? But maybe the house would get too warm? Thanks for all the detail! [image]

If you are really deeply interested there is this chapter which shows the performance data in detail for a range of Mitsubishi heat pumps:

https://library.mitsubishielectric.co.uk/pdf/book/Ecodan_FTC5_Databook?model_query=PUHZ-HW140VHA2-BS#page-86-87

Of course other manufacturer’s heatpumps will behave differently, but hopefully that will give you a flavour.

BTW your Summer house is as big as my actual house

David