{"product_id":"sparks-overland-4kw-mini-diesel-heater","title":"Sparks Overland 4kW Mini Diesel Heater","description":"\u003cp\u003eSparks Overland 4kW Portable Mini Diesel Heater\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eMaximum output. Efficient operation. Built the Sparks way.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eAfter more than two years of development, testing, and refinement, the Sparks Overland 4kW Diesel Heater delivers powerful, efficient heat for larger spaces, colder climates, and extended off-grid use — while maintaining the quiet operation, low electrical demand, and refined control that define our heater platform.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cspan style=\"background-color: transparent;\"\u003eThis is a Sparks-spec heater platform, built to our requirements and paired with our hand-assembled stainless enclosure and premium components — engineered to perform where it matters most: in the field.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eDesigned for overlanding, camping, rooftop tents, vans, trailers, and off-grid travel, this heater provides robust diesel heat with modern electronics, Bluetooth control, and dependable long-duration performance.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThis model serves as our high-output diesel option, ideal for customers who need more heat without stepping into expedition-grade or commercial pricing.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Highlights\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Brushless motor design for longer service life and smooth, efficient operation\u003c\/p\u003e\u003cp\u003e• Automatic altitude compensation for consistent performance at elevation\u003c\/p\u003e\u003cp\u003e• Ultra-quiet metering pump with refined combustion tuning\u003c\/p\u003e\u003cp\u003e• Extremely low startup draw — just ~8 amps at ignition\u003c\/p\u003e\u003cp\u003e• Bluetooth app control for remote adjustment and monitoring\u003c\/p\u003e\u003cp\u003e• Strong, stable heat output for larger or colder setups\u003c\/p\u003e\u003cp\u003e• Designed for portable or fixed installation\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProduction \u0026amp; Lead Time\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach heater is assembled, integrated, and tested to Sparks Overland standards.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003ePlease allow\u003cspan style=\"color:#cb2026;\"\u003e 4–6 weeks for production, plus shipping.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy Sparks Overland?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eBuilt the Right Way — Inside \u0026amp; Out\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eReal Metal Fuel Tank\u003c\/p\u003e\u003cp\u003eNo plastic. Ever. Our sealed, pressure-vented stainless steel fuel tank is safer, stronger, and built for long-term use in harsh environments.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eDiesel-Optimized Fuel System\u003c\/p\u003e\u003cp\u003eDesigned specifically for diesel operation with quality fuel lines and filtration to ensure clean combustion, reliable cold starts, and long service life.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eA Sparks-Developed Heater Platform\u003c\/p\u003e\u003cp\u003eThis heater platform is the result of two years of real-world testing and refinement. By developing our own core system, we maintain full control over performance, reliability, and long-term support.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eQuiet, Refined Operation\u003c\/p\u003e\u003cp\u003eA tuned metering pump and smooth fan control significantly reduce ticking noise and vibration — keeping operation calm and sleep-friendly even at higher output.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eModern Electronics \u0026amp; Bluetooth Control\u003c\/p\u003e\u003cp\u003eBuilt-in Bluetooth connectivity allows full heater control through a mobile app. Adjust temperature, monitor operation, and manage output directly from your phone — without leaving your sleeping setup.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003ePremium Components Only\u003c\/p\u003e\u003cp\u003eStainless exhaust with muffler, sealed electrical connectors, quality fuel lines, and carefully selected hardware throughout — built for durability, not cost cutting.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eFresh Air Combustion Design\u003c\/p\u003e\u003cp\u003eAll combustion air is drawn from outside the unit. No fumes, no odors, and no shared cabin air.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eHand-Built in Colorado\u003c\/p\u003e\u003cp\u003eEvery Sparks Overland heater is assembled one at a time by skilled hands. No mass production. No shortcuts.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• 1.9-gallon stainless steel fuel tank (flat design, pressure relief)\u003c\/p\u003e\u003cp\u003e• Sparks Overland 4kW diesel heater core\u003c\/p\u003e\u003cp\u003e• Controller\u003c\/p\u003e\u003cp\u003e• Mountable legs\u003c\/p\u003e\u003cp\u003e• Quick-connect duct + 27” fully expanded ducting\u003c\/p\u003e\u003cp\u003e• 12V cigarette-lighter power plug\u003c\/p\u003e\u003cp\u003e• Silicone fuel funnel\u003c\/p\u003e\u003cp\u003e• Accessory bag (cables \u0026amp; hardware)\u003c\/p\u003e\u003cp\u003e• Silicone air-intake travel cap\u003c\/p\u003e\u003cp\u003e• Instruction manual\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePower \u0026amp; Performance\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Up to 4.0 kW heat output\u003c\/p\u003e\u003cp\u003e• Heated air volume up to 120 m³\/h\u003c\/p\u003e\u003cp\u003e• Smooth modulation from low to high output\u003c\/p\u003e\u003cp\u003e• Consistent, powerful heat with minimal temperature swings\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Highly efficient heat exchanger\u003c\/p\u003e\u003cp\u003e• Low diesel consumption relative to output\u003c\/p\u003e\u003cp\u003e• Optimized combustion for long run times and clean operation\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQuiet Comfort\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Low-noise metering pump\u003c\/p\u003e\u003cp\u003e• Smooth fan operation with minimal vibration\u003c\/p\u003e\u003cp\u003e• Designed to remain sleep-friendly even at higher output\u003c\/p\u003e\u003cp\u003e• Ideal for vans, campers, trailers, and larger enclosed spaces\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUser-Friendly Control\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Simple, intuitive controller\u003c\/p\u003e\u003cp\u003e• Bluetooth app control for remote operation\u003c\/p\u003e\u003cp\u003e• Precise temperature adjustment\u003c\/p\u003e\u003cp\u003e• Reliable startup and shutdown behavior\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePortability \u0026amp; Installation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Compact, portable design\u003c\/p\u003e\u003cp\u003e• Mounting brackets for fixed or mobile use\u003c\/p\u003e\u003cp\u003e• Ideal for vans, campers, trailers, shelters, and large rooftop tents\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSafety\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Overheat protection\u003c\/p\u003e\u003cp\u003e• Flame monitoring \u0026amp; automatic shutdown\u003c\/p\u003e\u003cp\u003e• Low-voltage protection\u003c\/p\u003e\u003cp\u003e• Multiple integrated safety systems\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Heater Output: 4.0 kW (max) \/ ~1.0 kW (min)\u003c\/p\u003e\u003cp\u003e• Fuel Type: Diesel\u003c\/p\u003e\u003cp\u003e• Fuel Consumption: ~0.16–0.50 L\/hr\u003c\/p\u003e\u003cp\u003e• Startup Power Draw: ~8 amps\u003c\/p\u003e\u003cp\u003e• Running Power Draw: ~1.2–3.0 amps\u003c\/p\u003e\u003cp\u003e• Operating Voltage: 12V\u003c\/p\u003e\u003cp\u003e• Altitude Compensation: Automatic\u003c\/p\u003e\u003cp\u003e• Operating Temperature: Down to −40 °C \/ −40 °F\u003c\/p\u003e\u003cp\u003e• Fuel Tank: 1.9-gallon stainless steel\u003c\/p\u003e\u003cp\u003e• Dimensions (assembled): 20” × 12” × 12.5”\u003c\/p\u003e\u003cp\u003e• Weight (assembled): 36 lbs (16.3 kg)\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e⸻\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy Choose the Sparks Overland 4kW Diesel Heater?\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis heater is for customers who need maximum heat output with excellent efficiency, quiet operation, and modern control — without the cost or complexity of expedition-grade systems.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChoose this heater if you want:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• High-output diesel heat for larger spaces\u003c\/p\u003e\u003cp\u003e• Reliable performance in cold and high-altitude conditions\u003c\/p\u003e\u003cp\u003e• Bluetooth app control with modern electronics\u003c\/p\u003e\u003cp\u003e• Manageable power draw for off-grid battery systems\u003c\/p\u003e\u003cp\u003e• A Sparks-designed platform with long-term support\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThis is the high-output diesel foundation of our heater lineup — powerful, efficient, and unmistakably Sparks.\u003c\/p\u003e","brand":"Sparks Overland","offers":[{"title":"Yes +$34","offer_id":55627991121993,"sku":null,"price":20.0,"currency_code":"USD","in_stock":false},{"title":"NO","offer_id":55627991154761,"sku":null,"price":20.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/4137\/3513\/files\/e1e535_9f2634a9c16c4032a152fe450ce6db39_mv2.jpg?v=1776101120","url":"https:\/\/www.sparksoverland.com\/products\/sparks-overland-4kw-mini-diesel-heater","provider":"Sparks Overland","version":"1.0","type":"link"}