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thermostat
A thermostat is a regulating device component which senses the temperature of a physical system and performs actions so that the system's temperature is maintained near a desired setpoint.
Thermostats are used in any device or system that heats or cools to a setpoint temperature, examples include building heating, central heating, air conditioners, HVAC systems, water heaters, as well as kitchen equipment including ovens and refrigerators and medical and scientific incubators. In scientific literature, these devices are often broadly classified as thermostatically controlled loads (TCLs). Thermostatically controlled loads comprise roughly 50% of the overall electricity demand in the United States.A thermostat operates as a "closed loop" control device, as it seeks to reduce the error between the desired and measured temperatures. Sometimes a thermostat combines both the sensing and control action elements of a controlled system, such as in an automotive thermostat.
The word thermostat is derived from the Greek words θερμός thermos, "hot" and στατός statos, "standing, stationary".
Have a sytem boiler with unvented cylinder with 2 heating zones plus hot water in a house we moved into recently.
To start with we were always amazed at the water pressure so on the odd occasion that the water was only luke warm it was easily forgiven, but over time we have come to realise that...
I've had my tado system in my new build for 5 years now and it's been fine. Yesterday morning I changed the batteries on the second floor thermostat and now it's not switching on the boiler to heat that floor. The thermostat display is fine and the app is fine. All systems say they are fine and...
When I set it to be on via phone, light A comes on (telling it to be on), but light B won’t come on, so the boiler doesn’t start. I either need to set A on and off several times via phone, or turn it off and on again via switch (C).
When I set the water to be on, it works instead, and green...
Hi, I just moved into a new house and it has a Glow Worm Compact 24c combi boiler and a ESI ESRTP4RF+ programmable room thermostat and I am wondering if it's worth turning on the optimum start and stop features? There is also something called TPI (chronoproportional control) but I'm not sure how...
We have recently moved into a property which has a Worcester Greenstar Highflow 440 Standalone Combi gas boiler. This appears to be a relatively old unit however, it is still in great working condition and has been serviced on a regular basis.
I'd like to add a Nest Thermostat to control the...
My boiler will not heat up past 50 degrees. This is the temperature that is registering on the esi thermostat. Radiators have been bled not sure what else I can do
I have bought an old house in rural France and it has an oil tank and Unical oil powered boiler (Italian I think). Its a beast of a thing but can't find any model info or any plates on it.
I want to change the switch and thermostat to a digital wireless thermostat but I'm not sure what I can...
Hi, I live in a really remote part of the Highlands, so paying for a plumber (or electrician?) to do this will be brutally expensive, so I need to do it myself.
I have a Grant Combi 26e boiler.
I'm replacing the old thermostat with a new one.
Although the boiler is a combi, I think the old...
The boiler is a Warmflow B1 Oil CH Boiler.
Does the thermostat fail in an open state or closed state with a hard failure?
Can they simply start to malfunction and not control the temperature correctly in a soft fail situation?
The boiler is working but the homeowner says it's running all the...
Hi, I’m looking for some advice on how to remove this radiator value to check if the pin is stuck. I have two similar values in the house where those radiators aren’t heating up at all. The pipe leading into the value is cold but the rest of the system is working fine.
Thanks for any help/advice!
A Google search suggests that the VRT 380f/2 variant is sold and used mainly in Scandinavian countries, but is there a functional difference which would prevent the VRT 380f/2 being used in the UK?
I have a Neura heat pump and my thermostat has failed (Theben RAM 797 b). I'm looking to replace it with another more modern one I can use with an app etc.
My question is, can I replace it with any thermostat or do I require a very specific type thermostat to run the heat pump?
Thanks for...
Hi
I'm having issues with my wireless Honeywell thermostat. It's sat in the living room, set at 18C currently. It makes my Worcester Greenstar 18Ri to short cycle. So, the moment it gets cold outside my boiler works for about a minute, then stops, and starts again in about 5 minutes, then...
Hi all,
I keep reading about how you should use a smart thermostat. Set it to the temp to want the home to be and hey presto it takes care of itself. But realistically who does this or rather who does this work for.
With mine I just use it to turn the heating on now and then for short periods...
Hi everyone,
I’m writing on behalf of my elderly neighbour and hoping this is a problem someone on this
forum has experience of and remedied.
The boiler was not responding to the wireless thermostat. The various settings on the thermostat seemed fine and 3 heating times and temperatures were...
I've had a couple of these battery powered thermostats fail and currently looking at finding replacements but I'm fairly sure they are now superseded?
Can anybody advise on other programmable battery powered units that could be used instead? I'm assuming the others may well start to fail in the...
Hi all, as it’s starting to get chilly at night, we’re thinking of having the heating on at night… well the wife is.
Which led me to wonder whats the point of having a room stat when the radiators all have their own thermostat controls?
We currently have just a time controller for the heating...
Hi All,
I have the boiler above and the safety thermostat has snapped at the plastic cable right where it means the thermostat.
This looks like it was originally all one part but can’t find the replacement harness and thermostat only the thermostat on its own with two electrical connections...
Hi all
I have a main eco compact 30kw combi boiler installed. This is using weather compensation (baxi ifos) and salus iT500 controller. The salus is starting to play up so I am in a dilemma. Do I replace the salus with a hive or similar and continue to use the weather compensation, or do I...
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