Just got myself a ZH and the heater hoses aren't hooked up.
There are two pipe connections in the firewall that I can see - two on the passenger side and two towards the middle. Have a look at the pic of my engine bay, URL below.
On the passenger side, there are two hoses exiting the firewall - one is "connected" to a hose running from the rad by electrical tape and a piece of cloth stuffed inside it (!), and the other just sits out of the way and rests just in front of the horn, as you can see. Are these the A/C hoses? If so, I'll leave them as they are because I'm not bothered about hooking any A/C up right now.
The ones in the middle that you can't see because the air cleaner is the way are just open (no hoses at all), and I *think* these are the connections for the heater hoses. Is that right?
If so, where do I hook the other end of the hoses to? I'll obviously need to flush the cooling system when done, but my workshop book tells me how to do that. It's just not clear which hoses are which, and where they should be going.
Hope you can help!