Regular offerings to the gods were important in ancient Rome. As such, sacrificial altars would be common in wealthy households. Good job highlighting this :)
There are some fine examples of arae at Arbeia, the remains of a roman fort at the eastern end of Hadrian's Wall in north-east England near Newcastle. Worth a visit if you're in the area.
Using macrons to indicate long vowels, this should be "Patrōnus noster ārās multās habet." I've reported this as "The audio does not sound correct" as the speaker has pronounced all the as short.
What exactly is a patron in this context?
A patron is either a boss/employer or someone who gives money to encourage athletics or the arts. Either way, a patron is the person you keep happy...or else!
Best description is here