curious how it works with 2 boosters. Can you explain your setup a bit?

It’s fairly simple. Outdoor unit: PUD-SHWM100YAA ( modified to PUD-SHWM120YAA) & indoor unit EHST20D-YM9D equipped with FTC6 . The pump is running on Room Temperature using Wireless Controller. The indoor unit has 2 boosters built in: 3kW & 6kW. Down to -15C the outdoor unit is enough to meet the re…

Hi Greg, What country are you in, if you don’t mind saying? My wife is from Latvia and I have been in -28c a few times. Not nice for heating but not as bad outside as it sounds if you dress appropriately. I remember once in November in Riga, Independence day celebrations and we were on a bridge …

Sweden. Somewhere in the middle of the country. For 6 days in a row we had in between -20 and -24C during the night. -13 to -18C during the day. Every room in my house has 22C so who cares what temp is outside. P.S. Here you can see how the boosters worked between 12pm-4PM today [Screenshot from …

Nice. I have spent a lot of time there too. Mostly around Hassleholm, sawmilling. I have been as far north as Ostersund

[image] matt-drummer: ent a lot of time there too. Mostly around Hassleholm, sawmilling. Wow, what COP do you have at these temperatures ? [image] Monitoring & Controlling Ecodan via CN105 Very interesting… Seems lot of manufacturers are doing this trick but from what I read so far it’…

[image] Michal_S: Wow, what COP do you have at these temperatures ? Yesterday [Screenshot from 2025-01-06 09-50-08] Temp outside [image]

I agree, maybe Tim @Timbones can move it into separate topic discussion “COP at extreme temperatures” ? :slight_smile: 1.53 CoP is including additional booster heater ? Still pretty good if we consider such low outside temps. Here we have -5 to -10C at most for couple of days in Winter so it’s hard…

whats the monthly consumption ? 150 kWh :joy: in a day, jikes.

January 2024 → 4,700.26 kWh December 2024 → 3,062.49 kWh :smiley: Edit: This is the total energy used for the whole house including charging the EV

[image] Michal_S: 1.53 CoP is including additional booster heater ? Yes, including 9kW boosters going crazy. Dec 30th 2024 CoP 3.67 [image]

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