It is important to note that the AC heating element is thermostatically controlled, so you donРІР‚в„ўt need to rely on a mixer valve when operating on shore power. If you find your water heater is too efficient when operating in the heat-exchanger mode, and temperatures are too high, you can add a mixer valve that blends cold and hot water as it leaves the water heater. This is hot enough to cause third-degree burns in only 6 seconds of contact. When this heat-laden liquid is plumbed through the heat exchanger in a water heater, the temperature at the domestic water supplys hot faucets can exceed 140 degrees. Many diesel cooling systems operate under slight pressure, and that raises the boiling point of the coolant, allowing the liquid to approach 200 degrees without fear of reaching the boiling point. Most importantly, you need to be aware just how hot the domestic water supply gets when engine heat is supplied to the built-in heat exchanger. Users and do-it-yourself installers need to know a bit about heat transfer before they twist the tap. In this in-depth look at water heaters, we focus on how they are made, how they work, and why some cost twice as much as others. This win-win relationship works best when the right size water heater is chosen and the installation maximizes its reliability. Cruisers, particularly the stragglers working southward on the Intracoastal Waterway in November and December, appreciate this amicable exchange. A heat exchanger inside the water heater then transfers some of this energy to the boats freshwater supply. In this case, circulating coolant in the engine is rerouted to the water heater, taking with it excess British thermal units (BTUs) caused by combustion. Fortunately for us, boat builders long ago moved them from the options list to the standard features tally, and today, they are showing up on smaller and smaller cruising boats.Р”Р„shore, residential water heaters are energy-hungry appliances, but on your boat, theres a convenient, symbiotic relationship between the heater and your diesel auxiliarys need to shed heat. Water heaters are one of those silent heroes that rank high on the list of creature comforts on a cruising boat.

Lifespan of a water well cracked tank