Eqiva Model N Electronic Radiator Thermostat with Boost Function and Quiet Compact Gearbox 102 x 55 x 60 mm

These small units are brilliant. I have been using them for 8 years on my room radiators. Each room is set up to account for when it is in use and how it is to be used so the temperature is just right. The only failure I have had is that one of the radiator valves leaked (not the thermostat) which permitted water to get into the mechanism of the electronic thermostat. Not the fault of the electronic thermostat. No hesitation to look for the same type of thermostat with which to replace the damaged one.

I bought two of these (UK model) for the living room a year or so ago and really like them so I bought 6 of these (European model) to do the bedrooms and reception rooms. As you can see from the image, using the European model means the writing appears 'upside down' when installed. I really don't mind as nobody looks at them but me. They will control the heating in each individual room and were a bargain. Super easy to install, just screw off your old TRV and screw this one on. Set up is straightforward; use the dial to set date and time and programme if you like. I have not programmed and set them to a fixed temperature instead; I'll leave the programming to the thermostat.

I've used these for something like 8 years and they have been pretty well faultless. In fairness to their age and the heat cycling they are put through, the plastic mountings are now beginning to fail. However I will replace them with a like for like model and I am very pleased to see they are still available. These are primarily used in 4 bedrooms and as such they have a 15 degree set point overnight and admit heat at 7 am and then close at 8.30 am and again admit heat at 9 pm and close at 10.20 pm. Everyone wakes up warm and goes to be warm and sleeps cool. In reality the bedrooms seldom go much below 16/17 degrees so everyone is happy. The timing flexibility is exceptional and can be tailored according to a daily or weekly plan. Elsewhere in the house all the rads shutdown to 15 degree overnight but come on at between 5 to 7.30 am and stay on till 10 pm. Perhaps a bit of a fiddle to set up but once you understand the program architecture then in practice entirely dooable. Personally I am a big fan of controlled heating that ordinary trv's simply cannot provide and I would highly recommend these devices. They are well worth your time getting familiar with the programming and other set up functions and once done they will quietly get on with their job with no fuss or bother.

To all those that get an F2 error on installation adjustment I found this was happening with about half of my Drayton TRV's. The foolproof answer I found and has worked well for years is to put a penny inside the TRV body before you install it. You can hold it there with a dab of silicone grease up the top while you are doing the installation.

It's an excellent device, easy to use. However, it only seems to fit Drayton valves and not those I have no my rads, so watch out for that!

A bit of a faff to program but not too bad, and definitely worth it - plus there is a manual override. Saves money and good for environment. Note though that tends to make room higher than that displayed on its screen, so if you want the room 20 degrees you might need to program this to 17 or 18...

Amazing piece of kit

Far to complicated to set up. When fitted the led window face the wall, not very clever.

Wszystko działa poprawnie, ale po jakimś czasie może być trochę za głośne.

Excellent, facilite d adaptation et de programmation on verra a l usage dans la duree

Fonctionne bien, peu intuitif mais je ne le règle pas souvent donc fait le job.

Este termostato va muy bien. Se puede controlar bien el perfil de temperatura horario y cambiarlo para los distintos días de la semana. Las pilas duran mucho, así que eso no es un gran problema (voy por el segundo año). Desde luego me estoy ahorrando un buen dinero con él, porque sólo calienta cuando me hace falta...

De thermostaat met timer doet wat hij moet doen en is niet duur. Als je de timer in een kamer gebruikt die maar een deel van de tijd verwarmt hoeft te worden is het zeker een aanrader. Omdat hij bij het automatisch open/dicht draaien best wat geluid maakt is hij echter niet geschikt voor een slaapkamer.