Forum Discussion
DrewE
Apr 30, 2017Explorer II
Standard RV water heaters mount to the outside wall so the combustion air and exhaust go to the outside, not the inside. The tank sits on the inside. They are either pilot or DSI ignition (the latter being much more common these days, though both are available), so use either no or very, very little propane when not heating water. They're basically miniature versions of standard gas residential hot water heaters.
I don't know how the overall efficiency would compare with the L10, but I would not expect it to be too different overall. It would mainly depend on the efficiency of the heat transfer in the two heaters, not on some magic improvement for one or the other. There is a little more heat loss over time for a water heater with a tank (through the tank), but that should be pretty much irrelevant for a food truck where you'd turn it on at the start of business and could turn it off at the end. It would not be sitting unused for long periods of time.
What kind of food are you serving? Assuming it's hot food, how are you cooking it? A stove or oven or grill will use a lot more propane than any water heater (if gas fired), or a lot more electricity than a small electric water heater (if electrically powered), so fuel for the water heater seems to me to be a moot point in most cases. I suppose if you're not selling hot foods or have something like a wood fired pizza oven or charcoal barbecue then other energy needs might be rather minimal.
I don't know how the overall efficiency would compare with the L10, but I would not expect it to be too different overall. It would mainly depend on the efficiency of the heat transfer in the two heaters, not on some magic improvement for one or the other. There is a little more heat loss over time for a water heater with a tank (through the tank), but that should be pretty much irrelevant for a food truck where you'd turn it on at the start of business and could turn it off at the end. It would not be sitting unused for long periods of time.
What kind of food are you serving? Assuming it's hot food, how are you cooking it? A stove or oven or grill will use a lot more propane than any water heater (if gas fired), or a lot more electricity than a small electric water heater (if electrically powered), so fuel for the water heater seems to me to be a moot point in most cases. I suppose if you're not selling hot foods or have something like a wood fired pizza oven or charcoal barbecue then other energy needs might be rather minimal.
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