Monitoring a wood boiler heating system
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I just put the sensor through a 1cm sheet of heat resistant rockwool.
I bet that the draft of the chimney is enough to ensure that the fire does not find it's way through this little hole. -
@enlo there was a hole on the back of the wood boiler where the pipe goes to the chimney.
It looked like a bolt and when I unscrewed it with a 14mm wrench I found that it had 12mm (or 1/2") threading so the hole was quite big and I can fit most sensors in it..
Because the sensor is so close to the boiler it gets quite hot so it is actually not a surprise that the sensor could not handle it but the behaviour was quite strange. I thought that if it would fail it would also destroy the sensor but it just malfunctions and goes back to normal when it cools down.The sensor claimed to have a measurement range of -200~500 Degrees like most of the sensors for sale.
The K-Type thermocouple I'm using now has "Operating Temperature: 0 – 800 °C" but the item on Ali is nolonger available. I looks like this one though ->
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Hi, all this is awesome, about the same what I would like to make as I'm heating the house with wood boiler (actually wood gasification boiler to be correct), and accumulation tank. Still working on hot water boiler, but that's not far.
For now, I got working Individually DS18b20 node (still with automatic addressing) and one node that reads the temperature in my boilers second burning chamber with a k-type thermocouple but still struggling to get them bout working with one node.
It would be very helpful for some guidance or example for this.So my goal is to get 2x thermocouples (additional for smoke temperatures) and some 18b20s in one node + some standard stuff what I am not still sure about.
But for now big thanks to mysensors team and community for this.
