Which controller should I buy for a gas oven so that it also fits a different mo

I bought a Salus 091fl gas oven controller. I have a Vailant dual function oven.
I don't like his action. The temperature drops 4 degrees below the set point and the heating is only starting. Is it such that it works much more efficiently. I will add that I intend to change to a third-party condensing oven.
Please help.
Greetings,
Rysiek

Buddy, the best controller is dedicated to the furnace with special communication. Your cannon is 0-1 so it doesn't always work well with a condensing stove. As for the malfunction of the old, you probably have set hysteresis which. Is the reason for the problems.

Read the user manual for your controller on how to set the hysteresis. Do not write stupidity with 4 degrees because the factory is 1 ° C. You can change it to 0.5 ° C.
The controller is good and trouble-free

If you change the boiler, buy a proprietary regulator for it, which works smoothly on the boiler output, not on / off like a regular thermostat. It's like comparing smooth driving with gas / brake - where will the lower consumption be?

Weather regulators are recommended for condensate, which also have the ability to be installed in the room and affect the operation of the boiler depending on the room temperature, but the model is best given to the boiler manufacturer.

Thank you for your help.
However, my driver is faulty because I read the instructions and after pressing and holding the ok button I set hysteresis 0.5.
However, it switches the stove on after a decrease of 4 degrees from the set temperature. I will try to advertise it.
Even the best equipment breaks down.
Greetings to all.