The goal with TrueTemp is to make your heat pump smarter, save money and keep your home comfortable.
Most heat pumps follow a fixed idea of how much heat your house needs based on the outdoor temperature. But every home is different. A setting that works well one day may leave another too cold, too warm, or unnecessarily expensive to heat.
TrueTemp watches the actual temperature inside your home and learns how your house responds. It then gently adjusts the heat pump so it reaches and maintains the temperature you asked for, without requiring you to constantly tweak settings.
Made to be as easy to use as possible
Learn automatically, without complicated configuration
Account for the effects of sunshine and wind
Shift heating toward cheaper electricity hours
Prepare for incoming weather changes
Lower the temperature while you are away
Start warming the house at the right time before you return
Show you what it is doing through a clear Home Assistant dashboard
Works with newer smart heat pumps directly and older pumps with the right sensor hardware
GUI Language EN - SWE - DE (auto translations )
It starts in a monitoring mode, so you can see what it would do before it changes anything. You remain in control and can turn it off whenever you like.
In short: TrueTemp turns a heat pump that follows a generic formula into one that learns how your home actually behaves, helping you stay comfortable while avoiding wasted energy.
Excellent! Finally I might throw out the Ngenic junk!
What happends if there is some kind of failure, for example failure to recieve prices for if the home assistant instance crashes? Will it just pass the real outdoor value to the pump or will the spoofed outdoor temp stay static from the moment of failure?
I have a handful of fireplaces which are used quite a lot during the winter months. Do you have any idea how it will handle indoor heat spikes?
And finally, and this might actually be more about Ohmonwifi then you integration, how does it handle different brands of heat pumps? I’m guessing different brand thermistor will require differnt resistance? Will my IVT/Bosch heatpump interpret X Ohm to the same outdoor temp as, for example, a Nibe heat pump?
Ohmigo is working on a new firmware for the OhmOnWifi to fallback to real temperature if something stops working like HA or Wifi. It is in place already if you use it through mqtt.
The heat pump throttles back while the fireplace is running (bounded, not full shutoff), and recovers on its own once it stops. No explicit fireplace/spike detection exists.
This is something that might need some tuning since I don’t use a fireplace myself.
You select your heat pump from a list in the OhmOnWifi, it change the resistance used.
All feedback and improvment suggestions are welcome.
You can always turn on logging, it can be good to have for improvements further on.
There is no more features planned right now but always open for suggestions.
My goal was to make it easy to use so I will try not to feature creep to much
I’m up and running since a few days. Found a bug wiith the Ohmonwifi where the watchdog wouldnt work as intended if it came back up after a power failure without reestablishing the connection to Home assistant (e.g. if the HA server or router won’t restart properly). In this case it would boot up as “active” with its last resistance setting and stay this way until connection is restablished. I’ve announced this issue to the developers who seems very active and responsive. A new firmware version will hopefully be released next month. With that said, please contact them with any ideas that could improve the product.
I also read the release notes for the new version of Truetemp. Great feature with several indoor sensors.
I’ve made a template sensor with an input slider (0-100) where I can change the weight of my two indoor sensors. In my case I have two floors with a sensor on each, which I’m trying to find a balance between. I would love something similar natively in truetemp to be able to finetune between several sensors.
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