Today I added:
Smoothing of the CoP over a few minutes so it’s less spiky
Client-side calculated CoPs are a moving average so jump around less than before. Here’s an example from before:
and then after:
As Simon says, the efficiency scale is typically much more sane now.
A way to show nominal efficiencies for a heat pump
Using these efficiencies from a common device we can see what the vendor expects at various combinations of flow and outside temperatures.
These are included in the Efficiency graph (if you choose to) so you can see how your actual CoPs compare.
In this example you can see we have a design flow temp of 40 °C which interestingly has a CoP of 3.62 at 6 °C but we’re averaging 3.85. Of course the graph makes it clear that we’re actually just hitting the expected CoP because we’re running at a lower flow temp than the design one.
CoP graphs for space heating and hot water
This helps you see more clearly which things are affecting your efficiency and as you can see in this example, the water heating is going down in line with the vendor’s predicted CoP (until it hits the defrost at 13:42).
Graph legend now updates with values when you hover over the graph
Now you don’t have to guess what the exact values are.