This page was last updated: January 4, 2017
Page created February 10, 2003


There is a manufacturer that specializes in marine heaters
I ordered their H-406, H-417, and H-407 3/8" Male Pipe Thread to 5/8" inch hose adaptors, but I have not installed them yet.

            Heater Craft's, Dan Shull at 208-687-4400.
                      or e-mail him by clicking here

  Westerbeke has the straight adaptor P/N 302391.

I have not been able to get the old barbs out yet.   The system is working fine now so I may never add the brass elbows.  It is difficult to get the air out of the water heater lines, and I expect that the 90 degree elbow in the WH return line will help that as the fill point at the thermostat will be higher than the return line.

Next time I have to bleed the air out of the coolant system I will temporarily put  the coolant recovery reservoir about a foot or two higher than the water heater when I loosen up the hose at the water heater to let the air out.