– MT1 Mechanical Environment Thermostat

Good Quality and make- very well known- value for money- works perfectly- easy installation paperwork provided- just take the pictures before removing old ones- wiring is very easy- sets temperature is accurate.

A simple yet effective thermostat. Simple to install and does the job perfectly.

I chose this device to replace a failed vintage analogue unit. Its simple to operate, does not have confusing or unnecessary features or timers to set. As others have pointed out, its a bit smaller than the previous device and a small amount of patching plaster was needed. Its a two wire install, a simple 'dry contact' switch - if you have an older 3 wire install it can still be used. There's little programming to be done, no clocks, timers etc. Just set the temperature you want. There are two presets that you can use and modify, to quickly set a day and night temperature at the push of a button. Tale a moment to read the instructions and set the DIP switches inside. I'd suggest a 20 minute cycle, and conventional - I found the factory set 'proportional adaptive' setting an issue, it kept turning on and off too frequently, since the boiler has some of its own flow and temperature adaptions, and they seemed to be in constant argument. This may be the issue others have hinted on saying its 'clicking on and off a lot'. Further, the pump cycle option is pretty pointless if you also have a central heating timer elsewhere as most have - it cant exercise the pump if the timer is off, and most of us turn this to off during the summer months. Overall its a tidy and simple unit and does the job without fuss. The hysteresis - the amount it overshoots and undershoots the preset temperature to stop it hunting seems to be about 0.5 degrees and not adjustable - (some you can change) but unless your house is terribly insulated or your windows are open this wont be an issue.

Replaced my manual dial with this ! It’s great value ! Easy to install!

This review is for the Honeywell Home MT1 Thermostat (THR830T) It works Perfectly! BUT... only when correctly wired. The Honeywell wiring instructions on the leaflet are incorrect! The wiring as illustrated below and as shown in photo are per my certified electrician. My Honeywell T1 Mechanical thermostat to control for my ceiling mounted Infrared panel heater is connected to the circuut controlled directly to my Eddi Solar Diverter which is connected to the Electrical Distribution Board. Check compatibility of your chosen thermostat. Eg The Eddi Solar Diverter is ONLY compatible with mechanical thermostats NOT digital. PLEASE NOTE the installatiin wiring instructions are NOT correct for all configurations. Consult an electrician if in doubt or if the Honeywell instructions don't work). The wire connection terminals are along the top of the thermostat with each terminal having a corresponding number 1-4 + terminal for earth (NB if you use the Earth terminal on the thermostat then your supply cable earth MUST be on the electrical circuit that traces back to the Distribution Unit. Instead of using the Honeywell thermostat earth terminal you can use a connector block to join the Supply & Heater Earth wires as in my photo. I used a 47mm patress box that clips securely to the plasterboard, which is deep enough to conceal earths connected by terminal block, behind the Honeywell Thermostat backplate. The correct wire/terminal configuration for my installation is as follows, using the numbers embossed on the thermostat plastic plate :- 1. 'L' Mains Supply 2. 'N' Mains+Heater (ie 2 x Neutrals) 3. 'L' Heater/Load 4 Empty

This should have been the perfect thermostat, trusted company, but was not suitable for our system.

Not what I had expected.I really don’t want the thermostat to be wall mounted.Im hoping to return.

Bought as a replacement for my old work out thermometer, my boiler system is old but this seems to work fine. Pretty straight forward to fit in.

excellent

Es muy sencillo, muy facil de manejar, facil de instalar y funciona a la perfeccion.

Thermostat très facile à installer

tut was er soll, ganz ohne KI und sonstiger schlauer elektronik. Klick an, Klick aus. Bimetall. Einwandfrei!

Fonctionne bien ! Mais très limité dans les réglages possible !