I believe it is coming from the engine hot water as i did not turn on the electric to water heater and when i run the hot water while underway the smell is terrible.
Marine hot water heater smell.
Checking your hot water heaters anode rod.
If the electrical contacts on the thermostat mounted outside the water heater are overheating the plastic parts around the switch may overheat and burn.
Unfortunately it also voided the warranty on the water heater and shortened its life.
Almost all water heaters have anode rods which in a cathode anode reaction produce excess ions that wear off the anode rod and adhere to the inside glass lining of the water heater preventing corrosion.
If the water heater is working fine and only a few years old i d recommend checking the anode rod s condition and replacing it.
Some water heaters don t have an anode fitted as standard but for less than 20 you can add one.
Verify this by running the water until there s a steady stream coming from the hot water faucet.
My hot water has a foul smell to it.
No anode no problem.
The first way to check is if only the hot water on your boat is foul smelling.
The homeowner suddenly found he had rotten egg odor from his hot water.
The hot water heater is a perfect breeding ground for bacteria hot stagnant water that sits for weeks at a time with little or no use.
Burning rubber or plastic if you smell burning rubber or burning plastic turn off the power source at the breaker first before trying to pinpoint the smell.
But to answer your question yes a tankless water heater won t have issues with smelly hot water.
If you get a sewage smell with cold water or only some faucets it could be a problem with piping or a sewer vent.
Posted by tlc june 14 2018 faq water heaters wondering why your hot water smells like rotten eggs.
Each water heater is equipped with a magnesium anode rod in order to temporarily limit corrosion within the tank.
Foul smell from hot water heater.
Water heater smells like.
Why does my water heater smell.
To be sure unscrew the anode from the hot water heater with a ratchet and inspect it.
Enough science talk how to know if this is the root cause.
Carefully check for leaks and don t turn on the electricity to the water heater until it s full of water.
The most common odor problem from water heaters is a rotten egg smell that comes out of your faucets and fixtures when running water.
Rectifying this reaction within your water heater.
I have a sear ray 330 and i believe it is and attwood ehm series.
I did use a additive west marine sells for the portable water system afterwards.
To remove smell from water tank or when hot water heater smells like sulfur consider sanitizing the tank using hydrogen peroxide.
If the specialist had known more he could have offered a more elegant solution.
Smell gone never had the problem again for the next several years.
