Help with correct thermostat purchase

[EFLImpudence]

however it would be part of the government definition of installation, which includes anything fixed or intended to be fixed.

However, as with lots of things (lately), is that what they realised and actually meant?

 

[stem]

So I should buy a little junction box wire all the wires through that and a new wire going into the new thermostat screwed in place were the old receiver sits, That's what I wanted to do.

That might not be a good idea. The thermostat should be located in the best place in your home to control the heating properly. [ie probably where the existing wireless thermostat is now] Where the receiver is currently located is unlikely to be a good position for the thermostat.

That is why you presently have a separate receiver and thermostat. The receiver is located in the easiest place to connect the wiring and the thermostat is located in the best place to monitor the temperature.

 

[ericmark]

Where I worked all installation inspection and testing was done in house, but in-service electrical equipment was only part done in house, the vending machine was done by the provider, as was many other items, they were listed on the equipment register but against the item it simple said on contract see xyz catering etc.

This was one of the big questions when the government decided FI is a fail with rented property, and installation included fixed or intended to be fixed equipment, the freezer, fridge, washing machine, tumble drier, oven, hob and central heating were never included in a PIR, the PIR did not include any appliance, only the wiring to an appliance or between appliances.

However unlike the car MOT where they were very careful to detail what was and was not to be tested and what was a fail, with the PIR or EICR the details have been very sparse, and no one seems to be sure what is and what is not included, and also what passes and what fails. But unless there is a manufacturers instruction about only gas safe to remove this cover, then we must expect some electrical inspectors to remove it where it conceals some electrical wiring. No one can really criticise them for inspecting the electrics to a boiler, unless clear manufacturers instructions to say otherwise.

And no one is going to take any notice of post manufacturer notices, putting a label saying for service contact Joe Blogs gas services or gas safe personal only as a add on label is not going to stop anyone removing the cover, it needs to be clearly a manufacturers instructions. It is like putting only authorised personal on a door, means nothing, only electricians or plumbers maybe, but I remember asking when I started in one place is there anywhere I am not permitted to go, and the list did not include the plant room so I went in the plant room, it also did not include the 11 kV to 400 V transformer room but I kept out of there, so Corgi included electrical testing and inspection.

I would hope most electricians would look at boiler, ATM, or bank safe and use some common sense as to if they should inspect, and if I saw Gas Safe only even if it looked like some ones stick on label I would not remove the cover as with the high voltage room, you use some common sense, but unless a label one has to expect people to remove covers to inspect.

 

[ericmark]

As to thermostat location, I was told for on/off thermostat with modulating boiler it should be ground floor room normally kept cool with no alternative heating or outside door. With a modulating thermostat or with old off/on boiler it may be placed in the main room, but the whole idea of a on/off thermostat with a modulating boiler is to stop it cycling as warmer weather arrives, the TRV's set room temperature.

There are exceptions, Hive for example can have the TRV's linked to the wall thermostat, so really does not matter where it is. But in the main the TRV is analogue and the boiler is analogue so work together well, but the on/off thermostat turning on/off to control room temperature can waste fuel, it can cause the boiler not to modulate as designed.

Of course it will work if put in living room, but not in an efficient way.

 

[denso13]

and use some common sense

Well yes, but you would breaking the law if you carried out work on a gas appliance if not competent. This includes boilers that the electrical connections would mean compromising the combustion chamber.

Positive pressure flued boilers are particularly dangerous and an ignorance of the law is no defence.

 

[Adam_151]

Well yes, but you would breaking the law if you carried out work on a gas appliance if not competent.

Are there many modern boilers where the outer cover is a seal? I thought all modern room sealed ones had all the actual combusion of the gas happening inside a sealed combusion chamber, thus allowing the front cover to be removed for electrical and water work (I've had to change the valve in the expansion vessel on mine and reinflate it)

Obviously older equipment inc back boilers are a differnt kettle of fish

 

[denso13]

Are there many modern boilers where the outer cover is a seal?

No, but not all are modern boilers.

 

[flameport]

Are there many modern boilers where the outer cover is a seal?

Vaillant boilers do.