{"title":"Sunster hydronic heaters","description":"\u003cp\u003eSunster hydronic diesel and gasoline heaters for cabin and engine preheating.\u003c\/p\u003e","products":[{"product_id":"5kw-gsm-4g-control-water-parking-heater-12v-diesel-gasoline-engine-preheater","title":"Sunster 5 kW hydronic diesel\/petrol heater – 12 V","description":"\u003c!-- ss-conversion-strip --\u003e\n\u003csection class=\"ss-conversion-strip\"\u003e\n\u003cp\u003e\u003cstrong\u003eSafe shopping at SejlStrøm:\u003c\/strong\u003e 2-year warranty · Danish service and support · 30-day return policy.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre you unsure about the size or model?\u003c\/strong\u003e I am happy to help you choose the right diesel heater for your boat or installation before you order. \u003ca href=\"\/en\/collections\/vaelg-din-dieselvarmer-nemt-valg\"\u003e\u003cstrong\u003eCompare diesel heaters\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\n\u003c\/section\u003e\n\u003ch2\u003eSunster 5 kW hydronic diesel\/gasoline heater – 12 V – function, application, and specifications\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSunster 5 kW hydronic diesel\/gasoline heater – 12 V\u003c\/strong\u003e is a diesel-air heater for boats, campers, vans, workshops, and other off-grid installations where fast, dry hot air is required.\u003c\/p\u003e\u003csection class=\"ss-heater-sizing\"\u003e\u003ch3\u003eRecommended sizing\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eHeated area: Sized according to the system\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eBoat length: Sized according to the system\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBoat length and m² must be calculated for the total hydronic system. The usable room heating depends on radiators\/fan-coils, water temperature, insulation, and any simultaneous hot water demand. Contact me for sizing.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003e⚡ Practical benefits\u003c\/h3\u003e\u003cul\u003e\n\n\u003cli\u003eGSM\/LTE remote control; SIM card and mobile data may be required.\u003c\/li\u003e\n\n\u003cli\u003eCO monitoring in the included compatible remote control.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eSunster\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eModel \/ version\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e5 kW hydronic diesel\/gasoline heater – 12 V\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eRated heat output\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e5 kW\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003ePower supply, DC\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e12 V\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eFuel\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eDiesel \/ gasoline, depending on the chosen version\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eApp connectivity\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eGSM\/LTE\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eControl and features\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eGSM\/LTE, LCD display, Timer, Thermostat\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003e✅ Typically suitable for\u003c\/h3\u003e\u003cp\u003eBoats, motorhomes, campervans, vans, workshops, and off-grid installations when the model, power, voltage, and installation are correctly dimensioned.\u003c\/p\u003e\u003ch3\u003e⚠️ Important for boat installation\u003c\/h3\u003e\u003cul\u003e\n\n\u003cli\u003eCombustion air and exhaust must be routed safely to the outside.\u003c\/li\u003e\n\n\u003cli\u003eThe exhaust must be gas-tight and executed with marine-grade through-hull fittings, insulation, and clearance from combustible materials.\u003c\/li\u003e\n\n\u003cli\u003eFuel hose, pump, cable cross-section, and fuse must be correctly dimensioned.\u003c\/li\u003e\n\n\u003cli\u003eInstall a separate, approved CO alarm in the living area. A built-in CO function does not replace the boat's permanent alarm.\u003c\/li\u003e\n\n\u003cli\u003eAll-in-one\/toolbox models must not be placed loosely in an occupied cabin unless the entire combustion circuit is permanently and gas-tightly routed outside.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eAlways check the chosen variant and Sunster's current documentation before installation.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003csmall\u003eSpecifications: \u003ca href=\"https:\/\/sunsterdirect.com\/products\/5kw-gsm-4g-control-water-parking-heater-12v-diesel-gasoline-engine-preheater\" target=\"_blank\" rel=\"noopener\"\u003eSunster's product data\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e","brand":"Sunster","offers":[{"title":"Default Title","offer_id":57441471988087,"sku":"SKUV615121","price":1999.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/1369\/2791\/files\/amz_6393998c-9b16-4f26-8988-b39b7cbe9c24.jpg?v=1788704522"},{"product_id":"plumbing-water-heater-5kw-12v-a2301","title":"Sunster A2301 5 kW hydronic diesel\/petrol heater – 12 V","description":"\u003ch2\u003eSunster A2301 5 kW hydronic diesel\/petrol heater – 12 V – function, application and specifications\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eThe Sunster A2301 5 kW hydronic diesel\/petrol heater – 12 V\u003c\/strong\u003e heats a closed coolant circuit for engine preheating or a hydronic heating system with correctly dimensioned fan coils or radiators. It is not a domestic hot water tank in itself.\u003c\/p\u003e\u003csection class=\"ss-heater-sizing\"\u003e\u003ch3\u003eIndicative sizing\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eHeated area: To be dimensioned according to the system\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eBoat length: To be dimensioned according to the system\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBoat length and m² must be calculated for the total hydronic system. The usable space heating depends on radiators\/fan coils, water temperature, insulation and any simultaneous hot water demand. Contact me for dimensioning.\u003c\/p\u003e\u003c\/section\u003e\u003ch3\u003e⚡ Practical advantages\u003c\/h3\u003e\u003cul\u003e\n\n\u003cli\u003eCan be used for engine preheating and hydronic cabin heating.\u003c\/li\u003e\n\n\u003cli\u003eRequires correct pump, hose, expansion and safety setup.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eSunster\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eModel \/ version\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eA2301 5 kW hydronic diesel\/petrol heater – 12 V\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eStated heat output\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e5 kW\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003ePower supply, DC\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e12 V\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eFuel\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eDiesel \/ petrol, depending on the chosen version\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eOperation and features\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eRemote control, Timer, Thermostat, Automatic start\/stop\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eIncluded fuel hose\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e5 m\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e240 × 95 × 180 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003e✅ Typically suitable for\u003c\/h3\u003e\u003cp\u003eBoats, motorhomes, campervans, vans, workshops and off-grid installations, provided that model, output, voltage and installation are correctly dimensioned.\u003c\/p\u003e\u003ch3\u003e⚠️ Installation\u003c\/h3\u003e\u003cp\u003eThe system must be dimensioned as a complete closed fluid circuit with correct coolant, circulation, venting, expansion and over-temperature protection. On boats, exhaust and fuel installation must be gas-tight and marine-grade.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eAlways check the chosen variant and Sunster's current documentation before installation.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003csmall\u003eSpecifications: \u003ca href=\"https:\/\/sunsterdirect.com\/products\/plumbing-water-heater-5kw-12v-a2301\" target=\"_blank\" rel=\"noopener\"\u003eSunster product data\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e","brand":"Sunster","offers":[{"title":"Default Title","offer_id":57441473724791,"sku":"SKUV615120","price":1999.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/1369\/2791\/files\/1_b92edb13-1687-424d-b358-e8414cd2c9c7.jpg?v=1788704567"}],"url":"https:\/\/sejlstroem.dk\/en\/collections\/sunster-vandbarne-varmere.oembed","provider":"SejlStrøm","version":"1.0","type":"link"}