Benefit of having Wireless Thermostat

EliteHeat

Any volt-free thermostat is compatible with this boiler. There has been a fair bit of nonsense on this thread.

You will benefit greatly from any stat, but a wireless programmable thermostat would be most convenient.

It would be an extremely good idea to inject some system cleanser such as Sentinel X400 into your system and let it circulate for a week or so and then flush the whole system. When done, dose the system with inhibitor and consider fitting a magnetic filter to the return.

Mojisola

confuseddad wrote: »

All rads are new with trvs on them. Got cavity insulation loft done etc.

Is it okay to have TRVs on all the radiators? I understood that one radiator had to be left without one in case all the rads shut down while the boiler was running.

LTJ

xenon2020 wrote: »

Sorry, I don't agree about the rad needing bleeding. If it is hot at the top then there is no air in that rad. The problem is more likely to be sludge in the rad and not a balancing problem (cannot be ruled out though!). If the system did not have any corrosion inhibitor put in then there could be all sorts of problems with sludge and limescale etc.

We are all here to give what advice we can, I have had this problem and bleeding cured it. As OP has now stated they have tried bleeding they now have to try something else, maybe taking the rad off and cleaning to get rid of any sludge if there is any in there, if that don't work the next thing is to try and ballance the valve, if that don't work it could be a faulty valve that is blocked and needs replacing, it could be anything, but we try the simpless things first.

EliteHeat

Mojisola wrote: »

Is it okay to have TRVs on all the radiators? I understood that one radiator had to be left without one in case all the rads shut down while the boiler was running.

Yes, that is right. In practice though, most systems have either an automatic or manual bypass that allows circulation in the event that all TRVs shut.

You should not have a TRV on the radiator nearest to the room thermostat.

abdulh

just my 2 pence worth.

i have recently renovated my house and had a new central heating system installed, i went for a Valliant system boiler, Drayton radiator TRV's and a Valliant 360f wireless controller.

I am not very happy with the wireless controller. I still cant get it to control the hot water manually, there is a function for it but it does not seem to work (this has probably got more to do with the way it was fitted).

I have elderly parents who are at home all the time so our heating is set to 21.5 degrees and is never switched off. I find that sometimes the house is too hot and sometimes its too cold. The thermostat doesnt seem to be working very accurately.

Also the 360f seems really complicated to use. its not intuitive or user friendly. I was expecting a bit more considering the price.

EliteHeat

I have no wish to offend anyone, but controls must be chosen to suit the user.

Some elderly people find digital programmable thermostats difficult to understand and would prefer a more traditional, simple, analog rotary control - turn it up for more heat and down for less.

These are also available in wireless versions that will work with any type of boiler and configuration.

Jag1978

I have considered other wireless stats and if I do go for a Valliant then it can only be the VRT 340F due to the age of my boiler. I have heard many people say that the Valliant wireless stats are a pain in the back side to use... I'm just hoping with me coming from a technical background that I'm able to get my head round it... I'll see what the boiler engineer says and may end up going for the Honeywell equivalent.

Jag

DVardysShadow

xenon2020 wrote: »

You definitely need a room stat - that's for sure! Looks like the jury is still out for having a wireless one. Another thing to note is that just because the a stat maybe 'wireless' it doesn't automatically mean that it is designed to be moved from room to room. Some wireless stats just give ease of installation as you don't have to run a cable from the stat to the boiler and are designed to be permanently mounted on a wall, usually in a hallway.

Agree. With a thermostat, good positioning is everything.

The worst one I encountered was fixed in a lounge on the wall adjoining the airing cupboard.

I have had excellent results from a hall thermostat on an external wall opposite a radiator, with the cable fed down the cavity and a little bit of space for wind in the cavity to blow through.

Basically, the thermostat needs to be able to 'see' what the heating system is doing and also have some influence from outside conditions.