Howdy folks! Hot water is one of the features that makes the Tramper feel like a real home — for showers and dishes alike. The original Chronomite on-demand heater went in on September 14th, 2020 and survived multiple winters, but one winter I must not have blown out all the water, and it sprung a leak. Time for a replacement — and a test.
The Install: Tight Quarters
The new Chronomite mounts against the sidewall behind the back bottom drawer, on a pair of aluminum spacers I made to sit between the heater and the wood. Here's the honest downside of a complex truck camper build: when something breaks, there's nowhere to work. Tearing out the old unit wasn't easy, and attaching the wire whip after mounting the new one was like squeezing into a middle seat between two sumo wrestlers — learn from me and wire it up before you mount it. Then it's hot, ground, and neutral wired in, water lines hooked up, breaker on, and a careful check for leaks.
The Test: 1800 Watts, Real Numbers
With the Bluetti running the pump (DC) and the heater (AC), I measured the water straight from the faucet: cold side read about 70°F, and after running the hot side, 84°F — a 14-degree boost. Modest, but about what you'd expect from an 1800W on-demand unit that a portable power station can actually run. In summer, when the water in the jerry cans is already warm from the truck, that boost makes an outdoor shower genuinely comfortable. Cold-weather camping is another story. One idea I'm chewing on: looping the shower hose back into the jerry can to recirculate and raise the whole supply's temperature.
Gear From This Project
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Chronomite On-Demand Water Heater
The tankless unit installed in this video.
Bluetti AC200 Series Power Station
The power source for the 1800W shower test (links to the current AC200PL).
Front Runner Cub Pack
Storage box that earns its spot in the new setup.
Front Runner Stratchits
Stretch tie-downs for securing gear (also in shorty size).
Hot Water, Small Package
A failed component is never fun, but the swap was a chance to do it better. If your rig's hot water depends on aging equipment, this one's worth a watch before you buy a replacement — and if you camp where it freezes, blow out those lines properly. Ask me how I know.
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▶ Subscribe on YouTubeDisclaimer: The information provided in this article and its video is for entertainment/educational purposes only. By following any advice from this article, video, or any provided links, you do so at your own risk. Please consult with a professional before attempting any construction, plumbing or electrical work.