my 91 hatch doenst have heat, or any air for that matter. i got it knowin that, and the guy gave me two blowers and another big black piece with two rubber tubes and what looks liek some sort of radiator type thing inside of it, im assumin its the heater core. i took the glovebox off and there is a big black plastic thing behind my center console, but no blower or anythin to the right of that. i cant figure out how this thing is supposed to go in. i even have a shitty ass chiltons manual, but it doesnt explain. i juts need some air so my windows dont fog up. theres no duct that looks like it would connect to the blower if there was one. any help? theres also lots of little plugs on the right side, and one small one coming through the fire wall wrapped in black, as well as a weird cabel that moves when i move this on lever on the instrument panel. i just need some pics, or maybe a scanned helms manual maybe, anything!

 

Get the Helm anyway. Now-go to your local Honda delaer Parts Dept and asdk for a copy of the pages for the heater unit, blower assembly/housing and ducting. The wiring diagrams are in the manual. You may need the connector tube that goes between the blower and heater housing-try a yard or dealer for it.
If the part you have has the trap doors on it and is connected to the hoses on the otherside of the firewall-then you already have the heater housing with its core. The cable that goes thru the firwall operates a valve-make sure it works properly. If the part you have has only an inlet and outlet duct and looks like it goes betweent he blower and heater-that is the Evaporator case andf it is not needed for heat-but could be used as the connector duct; just seal the tubing ports.

Hope this gets you started.