leaking onto the passenger floorboard

our landrover discovery II seems to be leaking what I'm guessing is coolant, it leaks onto the floor board of the passenger side and soaks the entire floorboard. I don't know if it is a separate issue, but it is also starting to not keep the air blowing hot, it will start blowing cold, if you turn it off and on a few times it starts blowing hot again.

Sounds like you have a coolant leak - have a search on the site and you should find a solution - could be a heater hose?

PS - welcome to Landyzone

Sounds like coolant if your heater is playing up. If it is you should be able to SMELL it! Leak on passenger side can also be condensation from the aircon - there's a pipe which can come loose on that side.