We are going to start doing some light processing (head/gut/roe recovery) on our Alaska gillnetter this summer. To meet permitting requirements, I need to have a hot water heater on board for use at a hand wash sink. Needs 120 degree heat within XX minutes of turning on the faucet. I don't have a genny or propane onboard so, does anyone make a diesel fired hot water heater? If not, propane would be my second choice.