I’m looking for a Openhab integrated system that will tell me how much each radiator in the house is used/heat consumed, preferably in realtime.
The goal is to see where heating money is being spent and where to apply isolation if needed.
The heating system is warm water based. Know exactly what I spent on total heating but I cannot differentiate to the different rooms.
Rules and charts are fine, it’s the raw data from radiator that is difficult to get.
The article you mentioned is about getting the actuators doing what you want.
My issue is the opposite: how can I collect the data from the radiators even those not managed.
It’s not temperature settings that I’m after, but the amount of warmth a radiator is radiating.
In some apartment buildings radiator meters (based on evaporation or new electronic based) are used, that serve to divide the buildings’ energy bill over the apartments. Something like that would work, but I there not available for end users and they are pretty low tech, i.e. not integratable in OH.
Hope this clarifies a bit.
In that case, you will need some very specific sensors of which I know nothing and have neither heard of nor seen posted anywhere on this forum. Most people I’ve seen solve this by monitoring the temperature in each room and firing up the boiler when one or more rooms is below the target temp. From that you should be able to determine which rooms are more frequently demanding heat and answer your question. But if you want higher fidelity than that I know of no after market sensor that will give it to you.