The heating controller + / heating thermostat + I bought in our local market Conrad, I hoped it there -at nichtgefallen- to exchange easier. One advance in advance, this was not necessary for happiness. But first things first, the first surprise came soon as you open the small boxes. Positive, because the delivery is quite generous (adapter, brand batteries ...), negative, because the device is unfortunately quite large. Compared to the "L model" somewhat larger. This was in advance of the first point of attack for my skeptical partner who sees the system as a toy.
The installation is quite easy thanks to the instructions and the adapters. For me it was even simpler because had my old heating controllers the same adapter (Danfoss RA). Because the subject adapter, fixed seat, plastic .. here it is mentioned more often, I would like additional details,. Having also our thermostat fell at a light touch times, I have looked at the technology more closely. First was incomprehensible to me like a screw so easily give in without something is damaged or broken. The plastic is quite high, never so soft that the thread "bend away" could. Broken or worn was also nothing. The answer lies not in the union nut of the thermostat probes in the adapter! During screwing is a great game to feel the plastic nut can move on the thread a few mm. So naturally takes only a very small part of the thread. Probably it has been calculated in the development of the diameter Adaper in degraded state. Now it is so that the adapter contracts during tightening, so the diameter is smaller. This can be seen well on the gap is getting smaller (please do not forget, I have Danfoss RA). So it does not matter what material (some users anterior metal) the mother is, the problem is the accuracy.
Did you finally made to hold the part, the rest is easy. Is connected to the controller with a simple push of a button and the range is also good. This demonstrates an advantage of the low radio frequency, as opposed to eg the 2.4Ghz radio waves more "power" through obstacles such as walls have to penetrate.
Another point on which I will elaborate is the noise level. The greatest saving potential (more on that later) I saw in our bedroom and that is where the problem was. The controller is -in my opinion- hereinafter be classified as noisy. The old "Model L" knob was about 3x quieter! Unfortunately, that is not everything, it is still about 50% slower. Together this results in a great disturbance in our dead silent bedrooms. It is not a defect or individual cases, the other thermostats are similarly worded. Whether the disturbance is tolerable depends not only on the personal feeling, but also the use of the controller. Maintain a constant temperature, is not so bad, such as a boost.
Cost savings: which depends mainly by the user! The thermostat itself (like everyone else) naturally saves a cent. While the manufacturer promises 30% on heating bills, but only because the heating in the absence (eg work) Währe from or lowered. Now I wonder if someone actually keeps his room at 21 ° C when not at home ?! I at least have then put down earlier before going out on the knob. So far, the time tables and the remote control option so do not provide one pair potential, but only gain in comfort. The course is quite high -Only with radio. The only way still to save heating costs (without loss of comfort) offers with us in the bedroom. We used the heater go to bed when asked if desired temperature and in the morning, get up when, off again. So we came up with about 7 hrs. Per day. The el. Heating controllers provide mostly holiday / party function that saves our use. Now we make the evening vacation mode so that it the next morning, the heater 1-2 hrs. Before we get shut off (noise at night). In 1h. earlier, is not actually a temperature drop to feel. The radiators are usually still be off, similar to the principle of residual heat cooking.
So if you really want to save, should reconsider its heating habits first. Who already heated with brains that is can no longer save a lot with the radiator thermostat. I had already realized that I'm going to save nothing compared to the "Model L" knob (has vacation mode), but this increases the comfort considerably MAX system.
If EQ-3 good drive of the "Model L" in the Max! Installed heating controllers, there are 5 stars become. But 3 stars are not fair, because it works perfectly, so there's 4
