I do wonder Phil, whether you'd be better to source a heater from a later ('74 or 5 on) heater. As you'll be aware, the old round heater wasn't known as a fug stirrer for no reason! smile

Graham (G4FUJ)

Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW