The HLN Aquano hydronic heater is a powerful yet compact heating solution designed for engines and passengers in severe cold weather. Its unique design makes it ideal for use in trucks and buses. The heater operates independently of the engine to preheat the engine...

  The HLN Aquano hydronic diesel heater is a powerful yet compact heating solution designed for engines and passengers in severe cold weather. Its unique design makes it ideal for use in vans, buses, boats, campervans, motorhomes, and campervan conversions. The heater operates independently...

Discount at check out! For the past 50 years, HLN diesel heater has been the factory pre-installed diesel heater provider for manufacturers of trucks, construction vehicles, vans, camper vans, and buses, many of whom rank among top 10 in the world by sales volumes....

Discount code: Welcome 2025 US For the past 50 years, HLN has been the factory pre-installed diesel heater provider for manufacturers of trucks, construction vehicles and buses, many of whom rank among top 10 in the world by sales volumes. All the diesel heaters...

Kyocera glow pin for 12V Aerolyn air heaters, 2 or 4 kW

Simple muffler for air heaters

Power cable for HLN Aerolyn air heaters

Power cable for Aquano 5K/10K water heaters

Integrated muffler for air intake, for Aerolyn air heaters. 

HLN digital control panel with WiFi connection and phone APP for 12V Aquano Coolant heaters.