boat with water heater

[Cptkid570]

5.7 liter mercruiser.. My boat has a water heater that uses water from the engine to heat up the the water in the water heater.<br /><br />1. Would a boat that circulates water to the water heater run cooler or warmer than an engine that doesn't? <br /><br />2. If the water heater has a clog in it somewhere in this circulation, would it cause the engine to run warmer?

 

[cobra 3.0]

Re: boat with water heater

Water heater?

 

[Boatin Bob]

Re: boat with water heater

The water heater should have no affect on the engine running temp, to prove this just pull the 2 hoses off the water heater and join them together. They just go through a copper coil inside the heater.

 

[Bondo]

Re: boat with water heater

1).. Irrevelant<br /><br />2).. The ONLY Difference it would make is,... Your Water would be Cold,+ Not Heated..........<br /><br />If your boat is experincing an Overheating Issue,........<br />It's Not the domestic waterheater.......<br /><br /><br />I'm bettin' Capt'n Kid's boat is a Smidgin Bigger than Yours Cobra................

 

[rodbolt]

Re: boat with water heater

is this 5.7 fresh water cooled or raw water ?<br />and are you having overheating issues?<br /> I hate working on "campers" but I do it quite a bit.