Optima GLS Oil burner

I am new to this site and have just purchased a property in the Lot near Cahors.
The property has a Optima GLS oil burner central heating system. I am not sure if this does heating and hot water and am after any information anyone may have.
I am also after a user manual as I cant find anything on the internet for it.
At the moment the flue from the boiler exits via an existing chimney however I would like to change this to exit out of an outside wall instead using a balanced flue if possible, again any advice would be appreciated.
Many thanks

Hello Dave… congratulations on your new home in France and Welcome to the Forum…

I’m sure someone will chime in soon…