on demand 12v caravan water system

{"cid":"91225801","title":"Trailer Gas RV Water Heater Tankless 42000 BTU 12V Caravan Propane Instant On Demand Heating","imgUrl":"https:\/\/img.chinax.com\/nimg\/f2\/a0\/fb77f6c670854e07621bd0530daa-200x200-1.jpg","attrs":{"Price":"133-150 dollar","Brand Name":"HADUN","Model Number":"TMRV-05010145","Minimum Order Quantity":"50 PCS","Delivery Time":"20-25days","Power Source":"Car 12VDC, LPG","Supply Ability":"20,000Pcs\/Month","Energy Source":"Propane","Certification":"CE, CSA, ISO9001.","Heat Input(Gas)":"42000BTU","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union","Color":"White, Black, Gray","Product Size":"12.7''x12.7'' x13.78''(320*320*335mm)","Gas Consumption":"120 g\/h","Flow Rate":"6 L\/min","Place of Origin":"Zhongshan City, Guang dong Province, China","Package size":"445*385*410mm","Packaging Details":"(Color) General Carton package with Foam. Packing size: 470*440*450mm","Application":"RV, Motorhome, Yacht","Heat Exchanger":"Oxygen-free copper"}}

{"cid":"91225391","title":"65,000 BTU Stainless Steel RV Tankless Propane Water Heater 12V DC Digital Display On-Demand Instant Hot Outdoor Motorhome Caravan","imgUrl":"https:\/\/img.chinax.com\/nimg\/61\/c7\/bda66a0c9c8c5e08d583665d5075-200x200-1.jpg","attrs":{"Price":"$179.9-$199.9","Brand Name":"SEFFY","Model Number":"CZ-TGZ","Minimum Order Quantity":"300 MOQ","Delivery Time":"30-45days","heat exchanger":"Stainless Steel","Certification":"CE CSA AGA","smoke extraction method":"Forced Exhaust Type","Place of Origin":"Guangdong, China","private mold":"Yes","method ignition":"Electronic Ignition","Payment Terms":"T\/T","energy efficiency rating":"Class A","housing material":"Metal","Gas Type":"Propane","Display Type":"LED Display Screen","Packaging Details":"Corrugated Box\uff08Customizable\uff09","installation":"Freestanding","power source":"Gas","operating language":"English","application":"RV, Car","Storage \/ Tankless":"Instant \/ Tankless","warranty":"1 Year"}}