7 of 7 people found the following review helpful
4.0 out of 5 stars
Does the job, 26 Nov 2011
My house has two floors so I was looking for a wireless thermostat that supports two zones. I bought the PRT-WTS directly from Heatmiser, since they offered a two-zones kit (basically two thermostat units controlling a single receiver). I suppose I could have bought the one-zone kit from Amazon together with an extra thermostat unit, but I didn't bother. For separate heating of the two floors I already had individual programmable radiator thermostats, so that problem was solved (just for the record, stay away from Technoline TM 3010 - I bought 8 and had to replace 3 - after a while two of them were no longer closing the valves completely, the third was eating a set of batteries in 2 weeks. The Honeywell HR20 Rondostats that I bought as replacement are less smart, but they actually work).
Anyway, on the good side:
- I have no problem controlling the receiver through 3 brick walls, from the upper floor to the ground floor.
- The receiver has two independent electronic relays, one for each zone. I connected them together (any or both of the two thermostats will start the boiler). This was the main selling point for me.
- I found the the connectors on the receiver a bit too narrow to fit two wires together in a single hole, like I needed. But I guess I can't really blame the device, since it was not designed for that.
- The two thermostats don't seem to be very well calibrated out of the box - after leaving them 10 minutes next to each other, the displayed temperatures were different by 0.5 degrees Celsius. Not really a big deal - you can recalibrate the thermostat.
- The touch screen is very frustrating on both units. It is not responsive and most of the time I have to press the buttons repeatedly. Also, I have to look at the screen from about 30 degrees above the horizontal. When looking at it horizontally the letters are only half-visible. If you are 10 degrees below the horizontal they are _completely_ invisible (but you can enjoy a nice, pure blue screen - reminds me of good old windows days ;). I would much prefer classical honest buttons, complemented by a decent screen. I dropped one star for this.