16oz in 24h would be what she needs based on 150ml/kg/day (standard amount in paediatrics). Some babies will take a little more 165-180ml/kg/day (or for your daughter, up to around 19oz per day).
So it does sound like she is feeding much more than usual. Fortunately it isn't dangerous so try not to worry too much! Your HV should be able to tell you if she is gaining weight too fast (getting fat basically).
The main problem is reflux and vomiting. Babies tummy's don't usually manage with very large amounts of milk and it could make reflux symptoms worse or be the main cause of reflux. Symptoms might be - vomiting a lot, mouthing / grimacing motions after a feed, crying after feeds, back arching, drawing up her legs.
Quite a lot of babies with reflux demand lots of milk as they are soothed by the sensation of swallowing a liquid (just like in adults!) so it can become a bit of a cycle.
Or it may be she is one of those babies who would give you more of a break if she had a dummy.
If she really isn't experiencing any distressing symptoms and isn't getting too fat then you don't need to change anything. Some babies just puke up the excess and are perfectly happy. A bit expensive, tiring and messy for you though! Ask your HV for further advice.