Wasn't there an option to deactivate burning furnaces?
I don't need this in raidable bases.
Even empty furnaces burn.

no, this is done automatically. it cannot be turned off without disabling both options below

furnaces require wood to turn on, or they can turn on when Turn Lights On is enabled if they have at least 1 item in their inventory, but never when empty.

large furnace requires wood to turn on, or they can turn on when Turn Lights On is enabled even if empty

                        if (!oven.IsOn() && oven.FindBurnable() != null) // Move Cookables Into Ovens option
                        {
                            oven.SetFlag(BaseEntity.Flags.On, true, false, true); // requires burnable such as wood to turn on
                        }​

                            if (e.prefabID == 2931042549) // Turn Lights On option for regular furnace
                            {
                                if ((e as BaseOven).inventory.IsEmpty()) 
                                {
                                    continue; // do not turn on if empty
                                }
                            }

Thank you

Merged post

I noticed the only options regarding lights are:
"Turn Lights On At Night" and
"Turn Lights On Indefinitely"

I got 
"Turn Lights On At Night": true,
"Turn Lights On Indefinitely": false

but the furnaces burn at daytime too.