APUS
An RV water heater supplies hot water for showers and sinks without a full-size home system. If your current heater works, this matters only for a replacement or upgrade.
RV owners replacing or upgrading hot-water equipment.
APUS RV Tankless Water Heater, 68,000 BTU Propane Gas On Demand Hot Water with Black Door&Remote, 12V, 3.9 GPM, High Altitude Ready, CSA Certified, Compatible with All RVs,Ideal for RV Family & Camper (ASIN B0FH24VJKQ). Amazon's page has the current price, specs and reviews.
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Check current Amazon listing (ASIN B0FH24VJKQ).
Fine print: The Dude has not personally tested this product. The details on this page come from the Amazon listing and can change; check the listing for the current specs, price and availability.