Boiler Modulation and weather compensation

[wavetrain]

On last posting, I think he means away from an EXTERNAL wall!

Some of the simpler external compensators dont actually measure the internal temperature so they only assume what heat input is required from the fixed setting factor. This will produce an error if the outside is getting hotter or cooler.

On my Agile Compensator I measure both inside and outside temps and feed them to a simple boilers single input.

Tony

Tony I do mean an INSIDE wall. Inside walls are brick and 15" thick and do not warm up significantly when the heating is occasionally on.

We do not have an external sensor and will not be fitting one.

So do you manufacture your own OT controller?

 

[D_Hailsham]

The OpenTherm standard only take in room temperature sensing at the mo'.

It also covers weather compensation"! See Using Opentherm Protocol