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Last seen: Aug 16, 2026
As both Vaillants do DHW but the Samsung doesn't, you'd expect the daily mean COP of the Vaillants to be less. Also the first Vaillant does a defrost ...
@gary We've got the FTC7, maybe older controllers didn't have that setting? It's under Operational Settings on the FTC7.
See my post- it's called summer mode and is in the service menu.
Mitsubishi has a separate setting, like Samsung, to turn the heat pump off above an outside temperature. And turn the heat pump on below an outside te...
It's from:/p> Suggest you use the menu (top right) and download the PDF - it's a big document as it has all of Mitsubishi's air to water heat pumps....
A few comments that might be helpful. As James mentioned, usually the biggest source of over estimating heat loss is the ventilation rate (air chan...
Unfortunately for your argument the best performing Daikin on heatpumpmonitor is the one owned by matt-drummer and from how he explained his control s...
There have been several people on the OpenEnergyMonitor forums who have persuaded Octopus to replace their 9kW or 11kW Daikin with a smaller 6kW or 8k...
@heatgeek Sorry if I miss attributed that. Yes, the same CH flow rate is maintained at all OATs. Here's the same heat pump running at lower OATs: ...
The statement was "not a single one of the top performing heat pumps on heatpumpmonitor.org have a constant dT of 8C. At warmer OATs they mostly run w...
I suspect you know it's not, but to reinforce that, not a single one of the top performing heat pumps (of the couple of hundred with certified heat an...
Better than nothing from losing it as waste heat though.
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Degrees of Separation
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