This weekend I came to the conclusion that whatever I do, I’ll never get a well performing central heating without hydronic balancing. I’ve been watching how the temperatures in all the rooms of our house react and where the energy goes to – it’s a mess! No matter how well I’ll be able to control the kettle, temperature control in all the rooms will still be a mess without a hydronicly balanced system.
So this weekend I decided to stop what I was doing (building the Opentherm Gateway) and first try to do something about this balancing issue.
Hydronic balancing is not something I’m familiar with, and I certainly don’t have the tools for it ; but what i can do is provide enough information with these sensors; I don’t know if I’ll succeed, but it’s worth to give it a try.
The first thing I need to know is how much energy flows through the radiators. Well, I can do that, I guess… A JeeNode with RF transmitter and 2 1-Wire DS18B20 sensors can provide me information about how much energy each radiator produces by measuring the flow- and return temperatures of each radiator.
I’ve got a bunch of JeeNode kits still waiting to be used, enough 1-Wire sensors, batteries and all other components needed, so what am I waiting for??
So this weekend I built a first sensor and a RF-to-Zigbee ‘gateway’ so I can receive all the sensors without the need of USB, RS232 or an additional Ethernet port.
The first sensor is operational now; more will follow!