einbauen
to install
To firmly integrate or fit something into a larger whole, such as a device, piece of furniture, or building.
Wir lassen eine neue Küche in unsere Wohnung einbauen.
We are having a new kitchen installed in our apartment.

to install / incorporate
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to install
To firmly integrate or fit something into a larger whole, such as a device, piece of furniture, or building.
Wir lassen eine neue Küche in unsere Wohnung einbauen.
We are having a new kitchen installed in our apartment.

'Einbauen' (to install/incorporate) is a separable verb. The prefix 'ein-' comes at the end in a main clause. In subordinate clauses and in the infinitive with 'zu', the verb stays together.
Der Techniker baut die neue Festplatte ein.
The technician installs the new hard drive.
The verb is made up of the prefix 'ein-' (in/into) and the verb 'bauen' (to build). So the meaning is literally to 'build' something into a larger structure.
Wir wollen ein neues Fenster in die Wand einbauen.
We want to install a new window in the wall.
When indicating the place where something is installed, you use the preposition 'in' followed by the accusative. The structure is: etwas (Akkusativ) in etwas (Akkusativ) einbauen (to install something into something).
Der Handwerker hat einen neuen Schrank in die Küche eingebaut.
The craftsman installed a new cabinet in the kitchen.
You can recognize the figurative meaning from the fact that the object is abstract. When you incorporate a 'Witz' (joke), an 'Idee' (idea), a 'Pause' (break), or a 'Funktion' (function), this meaning is always intended.
Der Redner hat ein paar persönliche Anekdoten in seinen Vortrag eingebaut.
The speaker incorporated a few personal anecdotes into his talk.
to insert / to begin / to use
'einsetzen' and 'einbauen' can both mean that you put something in a suitable place. 'einsetzen' is often used when a part goes into a specific opening or position and sits there, for example a battery or a window. 'einbauen' emphasizes more strongly that a part is firmly integrated into a larger whole, for example into a car, a device, or a kitchen. The words are easy to confuse because both occur in technical and assembly contexts. As a guide: small parts are often 'eingesetzt'; larger or firmly integrated parts are more often 'eingebaut'.

Nächste Woche baut die Firma eine neue Heizung in unser Haus ein.
Next week, the company is installing a new heating system in our house.
Lisa setzt die neue Batterie in die Fernbedienung ein.
Lisa puts the new battery into the remote control.