Not sure if this is the right forum to ask on, but I was wondering if there is a way of controlling evohome TRV's without resorting to the expensive front end honeywell unit?
or are there better solutions to the problem of zone controlled heating.
evo home or possibly another setup. advice needed on radiator control
Submitted by cypher007 on Wed, 09/03/2016 - 13:15»
Re: evo home or possibly another setup. advice needed on radiator control
I've found this unit very useful for controlling one radiator, in a room that is only occupied in the evening.
It has 6 timers when the temperature can be set, requires two AA batteries.
Terrier 635001 i-temp Radiator Vertical Thermostatic Control for Valve Bodies.
Re: evo home or possibly another setup. advice needed on radiator control
cheers. I had looked at a few different systems the iq3 seems quite good as its bluetooth and cheaper than the evohome units but there seems some reliability issues.
the evohome system seems the best rated but has an expensive front end. I wonder if there is a way to control them using the 868 MHz frequency.
Re: evo home or possibly another setup. advice needed on radiator control
anyone else.
Re: evo home or possibly another setup. advice needed on radiator control
I live in an appartment building with centralized heating. I have one radiator in my living room / kitchen and one in my bedroom.
Heat usage is monitored by a wireless sensor mounted on every radiator in the building, but the only control I have over heating were the manually controlled thermostatic radiator valves.
Shortly after I moved in here, (about a year ago now) I replaced said valves with Honeywell HR92 radiator valves.
To control both of them I use a Honeywell CMT927 7-day programmable thermostat, which is cheaper than Honeywell's Evohome version. It doesn't do individual temperature settings for every HR92 valve, but I didn't need that.
Re: evo home or possibly another setup. advice needed on radiator control
I started using a Danfoss LC-13 about 18 months ago. This a Zwave controlled radiator controlled.
Because of the Zwave control, you can control is with almost any home automation software and create elaborate rules on how it should behave, i.e. time of day to turn heating on/off, compensation for outside temperature in heating time, precence detection etc.
I'm quite pleased with the results.
I also own a Evohome system with about 6 valves. I'm slowly phasing this out in favor of the LC-13's. The radiator controllers work on a propriatary Honeywell protocol and cannot be controlled any other way. The latest Evohome controllers have a network interface to control them externally.
One last wordt on the Danfoss valves: Be sure to have the LC-13 or later, earlier models had all kind of issues with Zwave control.