These small devices are similar to those of most other manufacturers of optics and fall neither positive nor negative on. Disadvantage is certainly the large use of plastic parts in the connecting area, but the drive could be mounted securely within 2 minutes. Overall, I run 9 of these thermostats.
The first weeks they ran normally in manual mode. This works great. Commissioning is very easy to read the instructions and you can easily adjust precisely using the knob the desired temperature to 0.5 ° C. Here, since the temperature sensor is located directly on the radiator, one can not infer the overall room temperature in large spaces, of course. Here you have to either back a wall thermostat (or other temperature sensor) or install one gropes approach the desired temperature. This value can then be adjusted to the actual value via offset parameters. The week circuit, Boost mode and the comfort and reduced temperature can be set quite good and easy on the device itself. All actuators now work without problems for 4 months. This fact alone would already justify the little extra cost over the 30 DIY equipment. However HomeMatic can so much more.
Once the devices have certainly proven their service, I have made the programming via the CCU2 and here the system comes into its own. The drives are not active until a certain outdoor temperature falls below (external temperature sensor). She rules depending on the day the temperatures timed for the rooms. Example:
- Bathroom in the morning from 5:00 to the evening from 17: 00h heated, lowered between
- Living room is heated from 16:00 clock (takes longer as the bathroom) and shuts at 24:00 clock from
- Kitchen is daytime heating to certain temperature and lowered from 18:00 clock
- Etc.
For this you can still create various system variables that activate by simply trigger certain changes
eg holiday (no one at home)
- All thermostats run on very low temperature
- Via the Internet I disable the variable a few hours in advance (could also happen Timer regulated) and the apartment heats up aud)
eg holiday home
- The apartment is kept warm all day because one is at home
eg visit
- Living room is heated longer and warmer
- Bed and Breakfast and Guest are heated
In addition, you can record the temperatures and adjusting positions to find such weaknesses in the programming and optimize the heating times (eg heating ramp). So you can also draw direct comparisons between constant heating and timed heating. Most thermostats are coupled with window sensors, so there is no heating when airing. Good for people who forget to close overnight sometimes the window ;-)
Since I arrived only last year in the apartment, I compared the missing to advance, so I can end up not quantify actual savings, but I'm sure I'm much lower heating costs habe.Da I very often on business trips, it is also very pleasant, not always having to turn down all the heaters but only presses a software button.
I would buy them again at any time, if you get no defects, I am also sure that you refinance the cost.
