Good day, is it possible for an artificer to learn wizard rituals of a high level without the required wizard levels? I'm looking for a way for my artificer to learn the Tiny hut ritual. my intentions are to take a dip in wizard to get the spell book and then add the ritual to the book. Am I able to use the 3rd level ritual if I have the appropriate multiclass/artificer spell slot

Even when you multiclass you can only add spells to your spellbook if your single classed Wizard level is high enough to do so. Because of this you would need to get Wizard to level 5 at the least.

Copying a Spell into the Book. When you find a wizard spell of 1st level or higher, you can add it to your spellbook if it is of a spell level you can prepare and if you can spare the time to decipher and copy it.

Spells Known and Prepared. You determine what spells you know and can prepare for each class individually, as if you were a single-classed member of that class.

That said - you could do it without any Wizard levels at all with the Ritual Caster Feat - and you would be able to do so from character level 5 onwards. You would need to find the spell in scroll or book form first and transcribe it though.

Ritual caster feat is what you need.