Apr 152013

SOLARdiagramDuring a long period of the year we get the hot water in our hose from the sun. We use hot water for showering, our hot-fill washer and our hot-fill dish washer. If the sun is not shining (living in the Netherlands it sometimes happens :-) ) the central heater unit warms the boiler. Of course I wanted to know when I can switch off the central heater, mostly its in May.

So for the measurements  I’ve connected a few One Wire Digital Temperature Sensor (DS18B20) to a Netduino-2 and wrote a small C# program which sends each 2 min. via WiFly the data to ThingSpeak. For measurements look here.

Dec 312012

Since this year we use the eQ-3 MAX! Electronic Wireless Radiator Thermostat to regulate the heating for each room.2012-12-29 18.07.39_b

Some Dutch energy suppliers offers this product types (Essent E-thermostaat) but it’s main disadvantage is the control over the whole house and not the regulation per room. And we like to be more or less independent from the energy suppliers so each year we can select the cheapest green energy.

In this post a short description of the eQ-3 MAX! Electronic Wireless Radiator Thermostat with some pictures. Continue reading »