Danfoss Oil Preheaters – Optimized Combustion All Year Round
Danfoss oil preheaters help stabilize oil viscosity, regardless of variations in outside temperature and delivery quality. This precise viscosity control ensures consistent spraying in the nozzle, guaranteeing clean, stable and efficient combustion.
Why Preheat Oil?
Oil viscosity directly influences:Without preheating, variations in temperature or oil quality lead to a drift in the air/oil mixture and therefore a loss of efficiency, an increase in soot and consumption.
The Advantages of a Danfoss Preheater:
· Optimized start-up speed: the oil is preheated before ignition. · Stable and clean flame, even in cold conditions. · Reduced consumption thanks to better atomization. · Higher CO₂ emissions, therefore more complete combustion. · Improved seasonal efficiency, as the quality of combustion remains constant.Embedded Technology
The Danfoss preheater uses a self-regulating PTC heating element: it adapts its power according to the flow rate and temperature of the oil. It works in perfect synergy with Danfoss controls. The system is designed to prevent overheating or oil leakage when idle.
Simple Installation
Thanks to its compact dimensions, the preheater can be integrated into most existing burners. It directly replaces the nozzle holder and connects easily to the control system. Danfoss offers several versions depending on the target temperature (50 °C, 70 °C, 120 °C).


