After painful experiences found the solution

I'm assuming that many people have this experience. At some point comes to mind brochure in your lap and you start on saving energy by electronically regulated radiator thermostats thinking.
Usually it ends that you bring an electronic device from a hardware store or the local drug store and installs faith in advertising promises.
Usually it ends that you realize that the device although regulated, but not in the way you have it programmed the device.
This painful experience I had to unfortunately make.
I have purchased and installed the same 4 of these devices. None of these devices did what it should. The room temperature entered could never actually achieved. Time it heated at night, sometimes it cooled morning. Regardless, it was a disaster.
I doubted already seriously about the basic operation of this equipment.
Based on my experience, I tried the www and Stiftung Warentest.
Accordingly, the Honeywell HR-20 should be very good. The test is a bit dated and the HR-25's successor. So I thought ... with last attempt ... order two times Honeywell HR-25 and look, if the better.
and now ...
I use the Honeywell HR 25 for 3 months
and we have now Winter
and I am thrilled !!!
The device regulates the temperature really precise.
I have all the hardware store scrap sacked.
For the other rooms I have to buy a couple of units.
I can only say ... it works !!!
I tend not to rave reviews, but this Produke convinced me.
There settings for 1-5 days and the weekend are incidentally possible and individually every day.
There is an auto mode or manual mögllich Regullierung using the jog dial.
What more do you want?