Help me understanding my heating installation and replacement

[Teebag]

Hi all,

I just joined the forum as I couldn't find help just being a lurker.

I just bought my first house (yay me) and it's a new one. The installation has been done my a bunch of different people and the plumber himself couldn't explain fully what he's done (yes, you read it right). I tried to understand myself, open junction boxes etc but, you will see in the picture, it's a mess.

The house is configured this way (three different valves on the boiler):

• Underfloor wet heating split into two zones for the ground floor
• Radiators on the floors (1st and 2nd floor, 4 rooms in total)
• Water cylinder

The underfloor heating is controlled via remote two heatmiser thermostats connected to a UH8-RF.
The radiators are all controlled via a single honeywell remote thermostat.
Then there is a Dangoss programmer in the mix (Electronic 3-Channel FP735Si).

See the attached pictures for a better idea of the installation.

My questions to the forum:

• what is the point of the Dangoss programmer in all of that? Is it to allow each unit (UH, rads and cylinder) to turn have the boiler on? Is it really necessary?
• I want to have smarter thermostats with something more centralised. I got three Nest Thermostat thinking it would be doable to swap all to it but the more I dig the more it looks complicated if doable at all. What do you think? I installed a Nest myself in my previous flat on a combi boiler but it was a much more straight forward installation.

I am not a good DYI person but I am not afraid of putting my hands in wires so long I know where I am going. Can you help me getting to that point please?

Cheers

 

[Madder]

I'm curious what is the orange piping?
Heatmiser are the market leaders in smart thermostats there neostats will do everything and more than nest and hive.

 

[king of pipes]

On the surface it doesn't look that bad the installer wasnt a complete novice where these systems fall down is when they are are wired trying to configure different makes of control can sometimes be difficult theres alot going on there a good sparks should be able to test out the separate circuits controls and explain better than your engineer or maybe with him there also I have my own electrician who I work closely with we both check systems out. Kop

 

[ShaunCorbs]

I'm curious what is the orange piping?
Heatmiser are the market leaders in smart thermostats there neostats will do everything and more than nest and hive.

Sprinkler / mister system
[automerge]1575448057[/automerge]
Looks good install but where’s your main stop tap gone it’s in the pic with the pipping but not with the final boxing ?

Also your filling loop has gone aswell ?

 

[Teebag]

Thanks all! My comments below.

I'm curious what is the orange piping?
Heatmiser are the market leaders in smart thermostats there neostats will do everything and more than nest and hive.

Indeed, orange pipe is for sprinklers.

Can neostats / Heatmiser automatically learn and adapt to our pattern? Can it detect if I am getting home early and turn on the heating? Those are the types of things I liked from the Nest as well the very looking style it has (thermostats are often very ugly).

On the surface it doesn't look that bad the installer wasnt a complete novice where these systems fall down is when they are are wired trying to configure different makes of control can sometimes be difficult theres alot going on there a good sparks should be able to test out the separate circuits controls and explain better than your engineer or maybe with him there also I have my own electrician who I work closely with we both check systems out. Kop

That's a good sumup ; it "looks" good indeed but behind the scene it's hard for anyone to maintain. I will have to get someone in anyway to help understanding it / cleaning and switching to something "smarter".

Sprinkler / mister system
[automerge]1575448057[/automerge]
Looks good install but where’s your main stop tap gone it’s in the pic with the pipping but not with the final boxing ?

Also your filling loop has gone aswell ?

Those are two very questions... I feel like they just buried the whole thing and I can't even fill-in at the moment (I have air in the radiators but I am afraid of venting it as I will lose pressure I can put back).

 

[Teebag]

Hi guys,

Thanks so far for the ones who responded to my thread.

I am now really going for a full replacement of the current controls with Nest Thermostat ones. I think this is how the installation would look like:

• I get rid of the the Dangoss programmer (it will be replaced with the Nests)
• Hot water and radiators valves connected onto one Nest
• UH8 zone 1 connected to one Nest
• UH8 zone 2 connected to one Nest

Does that make sense?

Thanks
[automerge]1576247823[/automerge]
EDIT: actually the UH8-RF can't be used with anything else to control it. So I need a new underfloor heating wiring center. I will go for the UH4, I don't need 8, without the "RF" feature. Does that make sense to you?

 

[ShaunCorbs]

Are you sure as I’m sure it’s just a wired stat with the uh8

??