there is still something

I have since about 1.5 years 8 circulators in use. 4 of the 8 are mitlerweile defective. Inexplicably, the digital display disappears or has been set back, so you have the year, month and and and Enter. After raising the temperature of the game from the beginning. A full 50% of thermostats purchased are useless. The other 4 are working wonderfully. The 2 AA batteries will last approximately 1 year.

Otherwise, the principle is very logical and simple. Supplied batteries pure, current data typing, make the daily programming and ready. The application is a breeze, even for laymen. Unscrew the old thermostat (if necessary must be used to a pipe wrench) and turn up new manually. A small description and various radiator connections are supplied with the thermostat.

For changing the battery only the bracket in the front top of the display must be opened and very easy to get up to them. All in all, when the massive failure would not, then it would be smooth 5 Stars.