hello All, i overhauled my heater (B32) last winter, added a few modifications that i would recommend;

    1. i added a plastic water trap box between the cold air intakes and heater cold air inlet, this should hopefully prevent any water entering from the two intake lovres in the stern walk way, admittingly it would take a very large stern wave to get in, however the cheapo addition of a bulkhead mounted plastic converted ‘ sandwich box’ gives peace of mind.

    2. i have insulated all the output pipes throughout their travels from the heater, cheap rolls of tinfoiled bubble wrap ( from screwfix or Wickes) secured with aluminium tape is a chap and effective method. The difference in temperature especially forward cabin is noticeable.

    rgds dave