The heater has never worked since I bought the car: the original core (left) was completely blocked by sealant and therefore didn't work. I had a new core installed (right)

The heater box looked dull and some of the leverages didn't work very well. It was dismantled, sanded, repainted

The restored heater in its box, ready to be reinstalled in position. Looks very nice and it works, too

Much better looking now. The heater works quite well now, though it is not as efficient as I would like it to be