[Solved] Viessmann Vitodens 100-W Stove & Vitocell 100-W Setup: Salus Thermostat Control for 94m2 Apartment

Hello all
After thinking about my apartment in a tenement house (insulated apartment) 94m2 I installed a gas stove Viessmann Vitodens 100-W single-function + Vitocell 100-W control of an internal (room) thermostat by Salus
Please help me set it up. I have a thermostat set to 20c for day and night 19c and I don't know how to set the knobs on the stove to heat water and heat the apartment. And will the setting of the knobs do something when the control is from an internal thermostat? I am interested in such a setting that it is economical.

Thank you in advance for your answers.

The lower the temperature in the boiler, the more economical.

The colder it is outside, the higher the boiler temperature.
The warmer it is outside, the lower the temperature in the boiler.

At temperatures around freezing outside, 2 or a little more should suffice.
If it's not enough, you turn it up a little. So that the boiler works for some time, it heats up to some 38 -42 * C with frosts up to about 55 * C

When it comes to hot water, you set it so that it is not too hot. So that you do not have to mix it with cold when using.
As a rule, 42 * C is enough

If there is often a shortage of hot water, then the temperature must be increased so that mixing it with cold water will last longer.

Thanks for the answer.
He understands with domestic hot water. And in terms of heating, the thermostat does not control the stove's power? For example, if you set the knob to 4 and the thermostat turned on the stove, it will heat up briefly and strongly. And as for 2, it will heat up for a long time but weakly.

As you wrote for 4, the boiler will heat up to higher temperatures and will heat up for a relatively short time.
The condensation effect may be minimal or no longer exist.
If set to 2, it will heat up to lower temperatures, so the radiators will stay warm longer, and the boiler will operate in condensation.
Setting 2 will be too small in frost so it would have to be corrected later.

The stove heats up for three years, it is set to 46c, very warm and economically, for a year it was PLN 2,180 at 22.8c at home d = Thanks for the answers