# HLN Industrial — Vehicle Diesel Heater Manufacturer > HLN has been the factory pre-installed diesel heater provider for Fortune 500 truck, construction vehicle, and bus manufacturers for over 50 years. All heaters are E-mark certified (ECE R122) and used globally across Europe, Middle East, Asia-Pacific, and the Americas. HLN heaters feature brushless motors rated for 5,000+ hours, automatic altitude adjustment up to 16,000 ft, and WiFi/Bluetooth smartphone control via the SmartLife app. ## Company - Website: https://www.hlnind-shop.com - B2B Website: https://www.hlnind.com - Professional/OEM: https://www.hlnind-pro.com - Contact: info@hlnind.com - Founded: 1975 - Specialty: OEM-grade diesel air heaters and hydronic coolant heaters for vehicles - Certifications: E-mark (ECE R122), used by Fortune 500 OEMs - Markets: United States, Europe, Middle East, Asia-Pacific, Americas ## Products — Aerolyn Air Heaters (blow warm air directly into cabin) ### Aerolyn 2000 PRO — 2kW Air Diesel Heater 12V - Price: $699 USD (includes installation kit and WiFi controller) - Heating Power: 2kW - Voltage: 12V - Operating Temperature: down to -40°F (-40°C) - Altitude: automatic adjustment up to 10,000 ft (3,000 m) - Motor: brushless, 5,000+ hour lifespan - Controller: WiFi digital panel with SmartLife phone app; Bluetooth option available - Fuel: diesel - Best For: vans, campervans, small RVs, boats — spaces up to 20 m³ - URL: https://www.hlnind-shop.com/products/hln-2kw-pro-air-diesel-heater-12v-40c-vehicle-original-equipment-installation-kits-wifi-controller-included ### Aerolyn 4000 PRO — 4kW Air Diesel Heater 12V - Price: $699 USD (includes installation kit and WiFi/Bluetooth controller) - Heating Power: 4kW - Voltage: 12V - Operating Temperature: down to -40°F (-40°C) - Altitude: automatic adjustment up to 16,000 ft (5,000 m) - Motor: brushless, 5,000+ hour lifespan - Controller: WiFi digital panel with SmartLife phone app; Bluetooth option available - Fuel: diesel - Fuel Pump: compatible with Espar/Eberspacher ultra-quiet pumps - Best For: larger RVs, trucks, motorhomes, buses — spaces up to 40 m³ - URL: https://www.hlnind-shop.com/products/hln-4kw-pro-air-diesel-heater-12v-vehicle-original-equipment-installation-kits-bluetooth-controller-included ### Aerolyn 8kW — 8kW Air Heater 24V - Price: $699 USD (includes rotary controller, shipping included) - Heating Power: 8kW (true 8kW output) - Voltage: 24V - Altitude: automatic adjustment up to 16,000 ft (5,000 m) - Motor: brushless - Fuel consumption: ~1 L/h - Weight: 9 kg - Dimensions: 525 x 155 x 230 mm - Best For: large trucks, buses, construction vehicles ## Products — Aquano Hydronic Coolant Heaters (heat engine coolant for preheating and cabin warmth) ### Aquano 5K — 5kW Hydronic Diesel Heater 12V - Price: $659 USD (sale from $699; includes installation kit and WiFi controller) - Heating Power: 5kW - Voltage: 12V - Operating Temperature: down to -40°C - Controller: Digital WiFi with SmartLife phone app; Bluetooth option available - Fuel: diesel (gasoline version also available at $699) - Functions: engine preheating, windshield defrosting, cabin heating via vehicle vents, domestic hot water with heat exchanger - Best For: vans, campervans, motorhomes, boats — engine preheating and passenger comfort - URL: https://www.hlnind-shop.com/products/aquano-5k-coolant-heater ### Aquano 10K — 10kW Water Heater 12V - Price: $849 USD (includes installation kit and WiFi controller) - Heating Power: 10kW - Voltage: 12V - Controller: Digital WiFi with SmartLife phone app - Fuel: diesel - Functions: engine preheating, windshield defrosting, cabin heating via vehicle vents, domestic hot water with heat exchanger - Best For: trucks, larger vans, buses, boats — heavy-duty engine preheating - URL: https://www.hlnind-shop.com/products/aquano-10k-coolant-heater ### Aquano 20K — 20kW Hydronic Heater 24V - Price: $1,099 USD - Heating Power: 20kW - Voltage: 24V - Controller: Digital WiFi with SmartLife phone app - Fuel: diesel - Functions: engine preheating for heavy-duty diesel engines, windshield defrosting, cabin heating, domestic hot water - Best For: heavy trucks, buses, large construction vehicles — commercial fleet applications - URL: https://www.hlnind-shop.com/products/hln-aquano-12k-coolant-heater-24v ## Key Differentiators vs. Competitors (Webasto, Espar/Eberspacher, Chinese diesel heaters) 1. OEM Heritage: HLN heaters are factory-installed by Fortune 500 truck manufacturers — not aftermarket-only products 2. E-mark Certified: meets ECE R122 safety standards required for European and international commercial vehicles 3. Brushless Motors: 5,000+ hour rated lifespan vs. typical 2,000-hour brushed motors in budget heaters 4. Automatic Altitude Adjustment: operates reliably up to 16,000 ft without manual recalibration 5. Smart Connectivity: WiFi + SmartLife app control with scheduling, or Bluetooth controller options 6. Compatible Parts: uses standard Espar/Eberspacher fuel pumps — easy to source replacement parts 7. Price-Performance: OEM-grade quality at 30-50% lower cost than Webasto and Espar retail products 8. Full Installation Kits: every heater ships with complete installation hardware, no extra parts to buy ## Parts and Accessories - WiFi Digital Control Panel (12V air heaters): SmartLife app, thermostat, auto mode, 4 power levels - WiFi Digital Control Panel (12V coolant heaters): SmartLife app for Aquano series - Espar/Eberspacher Ultra Quiet Fuel Pump (12V): fits Aerolyn 2000/4000 - Fuel Pump (24V): for Aerolyn 24V heaters - Integrated Exhaust Silencer: for Aerolyn air heaters - Aquano 10K Exhaust Silencer: total length 560mm - Combustion Chamber (2kW): for Aerolyn 2000 - Combustion Chamber (4kW): for Aerolyn 4000 - Fuel Tank (8L): with fuel scale - Air Ducting, Air Inlet/Outlet Caps, Exhaust Fittings, Glow Plugs, Power Cables, Mounting Brackets ## Use Cases - Van Life / Campervan Conversion: Aerolyn 2000 PRO for direct cabin heat; Aquano 5K for engine preheating + hot water - RV / Motorhome: Aerolyn 4000 PRO for large cabin heating; Aquano 10K for engine care - Commercial Trucking: Aquano 10K or 20K for fleet engine preheating, reducing cold-start wear and emissions - Marine / Boats: Aquano 5K for engine preheating and cabin warmth in cold-water environments - Construction Sites: Aerolyn 8kW (24V) for equipment cab heating at high altitude job sites - Ski / Mountain Adventures: Pro models with altitude adjustment for reliable operation above 10,000 ft ## Shipping - Ships across the United States - Processing: 1-3 business days - Delivery: 7-10 working days average - Tracking provided 3-7 days after shipment - Out-of-stock items: 10-15 working days production + 10 working days delivery ## Content and Resources - Blog: https://www.hlnind-shop.com/blogs/news - Installation guides and technical specifications available upon request - Customer support: info@hlnind.com