Intergas 28/24: isense best Opentherm option?

[phil63]

At the risk of retreading old ground here, but the situation and availability of Opentherm 'stats in the UK for Intergas seems a bit confused. Can anyone (Mehran2 maybe??) tell me if the Remeha isense is still a good option, (or possibly the only option available in the UK) and also if the isense RF wireless version plays OK with the Intergas?
Can I use the intergas external sensor, or does it need it's own Remeha type?
Thanks in advance.
Phil

 

[muggles]

I like the iSense, never used the RF version but no reason why it shouldn't work

 

[D_Hailsham]

Can I use the intergas external sensor, or does it need it's own Remeha type?

You need to use the sensor supplied by the boiler manufacturer. The electronics in the boiler converts the varying resistance of the sensor into a temperature, which is then passed on to the Opentherm controller. Use the wrong sensor and the boiler will supply incorrect temperature info to the controller.

 

[phil63]

Thanks chaps, I might go for it; the RF version costs £118 from Ozone heating at the moment.

 

[D_Hailsham]

Thanks chaps, I might go for it; the RF version costs £118 from Ozone heating at the moment.

You may have to buy a 5 volt power supply for the receiver; the type used for routers will do. It all depends on which version of Opentherm the Intergas boiler supports. If it supports SmartPower you won't need the power supply.