With the growth of optimiser solutions, such as Havenwise and Homely, is it possible to record this in heatpumpmonitor.org and then filter? Also, displaying the logos of the solutions would simplify the process of identifying which optimisers each solution uses.
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Came here to say I was just trying to look for a filter on heatpumpmonitor.org that showed that… toying with the idea of using Havenwise… but I want to see a winter’s performance with my own settings first…
I had an installation completed last week but went straight with Havenwise, as many installers (including mine) use it themselves. Even Mick Wall in his latest article on the Vaillant Arotherm Plus, suggests using Havenwise, as it seems to use many of his suggestions.
Just one benefit I have noticed already – if the water temperature is only a few degrees under the target temperature, it will not run, as the cost of the heat pump startup far exceeds the benefit of the extra few degrees of water temperature, and it also schedules the reheat based on my energy provider contract. So my water almost always heats at 1am during my cheap rate, and only if the water is consumed for a bath will it reheat in the afternoon. An immediate saving already.
I’ve also found OEM will spot problems that Vaillant does not recognise. I have air in my system creating errors (which should be fixed on the 22nd).
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Maybe I should just sign up… first 6 months free… what could go wrong?! I’m on OVO’s heat pump plus so I’m not really optimising for time of use… but I really like the idea that it learns how my house holds heat and adapts the flow temperatures to suit.
@TrystanLea I am unsure if you have seen the request to add filtering for optimisers. I’m interested in knowing whether Havenwise (that I’m using) behaves any differently from others without an optimiser (or other optimisers).
I’m a new heat pump owner and I was wondering whether having the heat pump on continuously was typical at 4 degrees, as I see others locally don’t (but I assume that depends on heat losses).
Anyway, I’m just curious about comparing.
Good idea, I’ve opened an issue to get this added, feel free to comment on the github issue if you want some input:
Currently you can search the notes field, it’s brought up 5 systems that have Homely installed: https://heatpumpmonitor.org/?add=notes&period=all&minDays=0&filter=query:notes:Homely:eq:t&other=1
and one system with Havenwise:
It’s worth keeping in mind that it’s possible that optimisers have been installed to try and fix oversized heat pumps with poor controls. I was involved in the retrofit installation of two Homleys on old Grant R32 heat pumps for these reasons. In these installations, Homely has been helpful in providing the user with a nice app, but performance has not increased much because of the very oversized heat pump with poor modulation.
I think optimisers are a very promising development, removing the need for the installer to set an optimal WC curve is fantastic. The main reason for poor performance that we identified in the Electrification of Heat trial was excessively high WC curves: Analysis of Electrification of Heat trial data — OpenEnergyMonitor 0.0.1 documentation. But I would like to see some more real word data on how optimisers work in practice.
Thanks, Glynn.
The Heat Geek that did the design and install should have sized my heat pump appropriately.
I have a technical background and could have configured everything myself. However, I think mass deployment of heat pumps will only happen when it becomes easy for a non-technical homeowner to just set the temperature and forget about it (without the addition of extra costly components). Eventually, I think all heat pump suppliers will have to ship optimising software as standard.
You can’t find my Havenwise, as the air issue keeps on coming back despite the installer doing all the steps to remove it except the installation of a deaerator. I will give it another few weeks to see if it will settle down, as it did go away for a while.
Thanks for raising the GitHub issue. Having a specific field will encourage OEM owners to record the information. I’ll have a look at it.
Yep, very happy so far. It’s making better decisions when comes to flow temp.
It’s almost like a hybrid of inactive and active modes. but with much better control and decision making.
I don’t use it for hot water as I use a Mixergy on 2 set times a day. But I can see why it would choose the off peak times as no amount of COP can outrun off peak electricity.
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I never had my WC curve setup and went straight to Havenwise. It seemed to work well with the outside temperature going down to 4 degrees over the past two nights.
I’m eagerly awaiting your thorough data analysis (as I’m sure Havenwise is). I assume it will be available next year after we’ve been through the winter period.
You can look day to day at the decisions it’s making on mine
And month to month will be here
Also, expect some of review / look back at the end of the winter. 
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