Honeywell Home THR99C3110 evohome Smart Wi-Fi Thermostat Kit with Wireless Boiler Control Relay Module, White (2 Pack) 0V, 139x101x21mm

After much research, I found this to be easily the best smart thermostat on the market and it goes the whole way by controlling individual radiators in addition to the central heating boiler. Every room has the right temperature at the right time. It's been about 3 months and we have not experienced any issues controlling this system remotely. Additionally, though all the controls on the thermostat are not available on the smartphone apps, this is not really detrimental. We bought 8 of the HR924UK radiator thermostats to go with this and the pairing went quite simply by following the instructions. I already had a very basic wireless thermostat which had been installed professionally, so I was able to connect the wireless module (this is separate from the thermostat but comes in the box) myself by following the wiring diagram at Honeywell's website for installers. Note that if you don't already have a wireless thermostat or you have the smallest doubt about connecting the wireless module, get a certified professional to avoid risk to life and property. Once everything is installed, you're on your way - you can name each thermostat around the house and decide what the temperature should be at different times of day in each room (the thermostat allows up to 10-minute precision). The thermostat touchscreen comes with a wizard to make this simple, or you can control the schedule with more control. The HR924 radiator thermostat regulates heat by opening and closing the valve as directed by the programmed schedule. There's a little noise as the motor turns, but after a while, you learn to tune it out. This combined system of the touchscreen thermostats and radiator controllers is very well thought out and includes options like always making a particular room a little warmer or cooler than the measured room temperature and showing which room(s) have caused the central heating boiler to come on. There could be some improvements (the battery life when the thermostat is moved from the base seems short and some features could be made more easy to access) but this has been one of my most satisfying purchases for a while.

It was an expensive investment to fit a large house with all the necessary radiator valves, but I am now consistently making savings of more than a third of my gas usage, measured over the first three months of 2022 compared with 2021. I'm writing this on 1 April 2022, a day when everyone's energy prices are rocketing, so I'm doubly pleased with this investment--I originally thought it would take years to repay the cost, but now it's going to be measured in months. Previously I had thermostatic radiator valves everywhere, but only one room thermostat, so edging up the temperature in the one main room for temporary extra comfort meant that heat was likely to be wasted everywhere else in the house--in effect there was only one control zone. With this system, almost every individual room is its own zone, and I can programme them for temperature and timing individually. Although we're using so much less energy, it's become very easy to focus where the heat goes and when. That means, for example, that the the living room can be heated quickly at a time when other zones are less important and programmed for lower temperatures, whilst the bedrooms can be left to their own devices for most of the day but warmed effectively overnight. The house feels more comfortable than before because the system is just so much more responsive. The central unit is easy to use, and the Total Comfort app supplements it by allowing more than one user to make adjustments--so when someone leaves their bedroom/home office for the evening after it's been heated all day, they can save energy by turning off the heat for that zone, maybe just for that evening. I did a totally DIY installation, but I would not necessarily recommend that for the faint-hearted or untrained buyer. Having researched other brands of smart thermostat systems and decided on Honeywell, I bought the kit and experimented with it as a dummy system, not actually controlling any radiators, nor connected to the boiler, until I understood how the programming works and could control a specimen valve at will. Then I gradually added the zone valves (in my case all my existing radiator valves were by Honeywell and the physical fitting was a breeze), and progressively changed the system wiring to use the new programmer instead of the old one (obviously that's the electrically challenging and potentially dangerous part). There was a fair bit of head-scratching along the way, but I'm really pleased with the result.

No Wifi SSID's shown on the controller. Looking at the information screen the Wifi just sits at 'Please Wait'. In contact with Honeywell support in India and they are useless. They ask for info and photos, after you send them you get a reply 2 days later asking for the same thing, again and again, pointless. They now suggest sending down a firmware update even though you cant do that unless you have it connected to the Wifi ! They call themselves support ? I am sure this kit if great, I am still waiting to find out. Plus, the HR92 are the Western Europe variety and not UK, thus, the LED is upside down ! They have until today to try sort it or this will be sent back.

Lovely. Second system purchased. Very pleased.

Controling 3 floors in the house through central relay unit to turn on the heating as needed. Works as described.

It works very well and it very easy to install it .

Ho acquistato questo sistema da utilizzare su un riscaldamento centralizzato. La centrale è al di sotto delle mie aspettative da nerd ma è assolutamente eccellente rispetto a quello che ho trovato come alternativa sul mercato, dopo parecchie letture e ricerche in merito. Ho scelto questa marca per l'esperienza su questo tipo di prodotto e per l'architettura del servizio che mi è sembrata ottimale Costruttivamente sembra valido sia per il tipo di materiale che per la reattività dello schermo. Provata per ora con riscaldamenti spenti solo per verificarne il funzionamento, aggiornerò la recensione dopo l'uso realmente operativo. Nella confezione è anche presente il sistema da collegare alla caldaia che non utilizzo perchè avendo il centralizzato uso le testine. Ho avuto un problema con un dispositivo precedentemente inviato che era guasto ed il servizio di assistenza di Honeywell mi è sembrato all'altezza della situazione sia in termini di risposta che di competenza del personale con cui ho parlato. Configurazione molto semplice e veloce. In questa versione il Gateway è INTEGRATO e consente di comunicare con smartphone o altri dispositivi. Si può impostare una mail se il servizio in cloud perde la connessione con il Gateway. è compatibile con IFTTT Le batterie consentono la configurazione sganciandolo dal supporto da tavolo e come tampone in caso di blackout (quando non è connesso alla rete elettrica il wifi viene disattivato). Al momento sono molto soddisfatto dell'acquisto, ovviamente sino al periodo invernale non posso esprimermi sul funzionamento per lo scopo a cui è preposto. AGGIORNAMENO: Dopo due anni di utilizzo sono soddisfatto dell'acquisto, il sistema va tarato e seguito per ottenere buoni risultati e vanno fatte anche valutazioni non sempre scontate tra l'opportunità di variare frequentemente le temperature o lasciare una temperatura costante. In alcune circostanze è necessario avere il termometro esterno per una resa ottimale, ma il problema è comune a qualunque testina. Quello che davvero manca è una parte di reportistica, il sistema non offre nessuna grafico delle temperature rilevate ne degli andamenti e delle volte in cui interviene applicando le funzioni di anticipo, ritardo, previsioni meteo, finestra aperta ecc.. Queste info sarebbero utli per suggerire dei setup migliorativi per esempio e magari potrebbero essere integrate con dati di altri sensori (esempio sensori di presenza, GPS. termometri di altri dispositivi ecc..) in realtà sarebbe possibile registrare queste informazioni con una serie di accorgimenti che però prevedono un pc dedicato sempre acceso in rete e molto tempo da investire. Dopo due anni ritengo quindi di aver fatto un buon acquisto

Perfect seller and product!