Nest Help

georgewickstaff

Hi

Just had a nest gadget installed, basic install..we have no hot water zone.

Stupid question but how do we just heat water? Turn the temp to 26 with all rads off?

Thank you

Sleeper12

georgewickstaff wrote:

Just had a nest gadget installed, basic install..we have no hot water zone.

What is the nest gadget?
Nest do dozens of different things

georgewickstaff

The thermostat. It's definitely not the security camera or smoke alarm.

Skatedude

georgewickstaff wrote: »

The thermostat. It's definitely not the security camera or smoke alarm.

Again, need more info, Nest make a number of different thermostats, some simple, some do hot water and heating, others don't.

Sleeper12

georgewickstaff wrote:

The thermostat. It's definitely not the security camera or smoke alarm.

Nest do thermostats but they are for controlling the temperature of a room.
What is it connected to.
Can you post photo, or model number

conoraofarrell

I have tHe same question. I thought that my old thermostat was going to be obsolete, but the guy who installed it basically said that I still need to crank it up to heat the rads and down if I only wanted water. So what's the point in having a smart thermostat when it basically does the same as the dumb Climote?

Sleeper12

There are dozens of different smart devices for the home.
What smart thermostat did you buy?
You usually need a smart controller as well as the thermostat. To have separate water and heating you'll need a motorised valve.
The main advantage that a smarter thermostat is it can control when your boiler is on or not & when connected to the correct controller you can control things from an app

conoraofarrell

Hi Sleeper12

I have a Nest Thermostat 3rd gen, with heatlink. This essentially replaced my Climote. However, I still have a 230v thermostat on the wall controlling my heat/water motorised zone valve. I was hoping that this old thermostat would be replaced, but I basically still have to use it as I always did.

From what I understand, the 3rd gen Nest should actually replace it, but maybe the installer either didn't know this, or didn't bother. It seems mad that the zone valve cannot be controlled by the nest thermostat or Heatlink.

Thanks

Sleeper12

conoraofarrell wrote: »

Hi Sleeper12

I have a Nest Thermostat 3rd gen, with heatlink. This essentially replaced my Climote. However, I still have a 230v thermostat on the wall controlling my heat/water motorised zone valve. I was hoping that this old thermostat would be replaced, but I basically still have to use it as I always did.

From what I understand, the 3rd gen Nest should actually replace it, but maybe the installer either didn't know this, or didn't bother. It seems mad that the zone valve cannot be controlled by the nest thermostat or Heatlink.

Thanks

Not my area of expertise but I was looking at them a few weeks back for myself. I lost interest as I'd have to replace my 30 year old Baxi backboiler & there's still nothing out there as good for reliability & low maintenance.

Anyway

OpenTherm is a language that compatible thermostats and heating systems can use to talk to each other. The 3rd-generation Nest Thermostat fully supports this language, which enables it to control OpenTherm-compatible heating and domestic hot water systems.

Taken from nest website https://nest.com/uk/support/article/What-is-OpenTherm-and-what-can-the-3rd-generation-Nest-Learning-Thermostat-do-with-it

Unless you have a compatible boiler it can't control it. I'm pretty sure you can get compatible motorized valves & the nest can open & close these so you can have separate control for heat & water.
Plenty of good heating guys on here will know more than me.