Constructed of solid aluminum, Design Logic Inc. (formerly Symtec Inc.) preheaters are known for their dependability, performance, and overall value since 1994. Heats entire engine (Lycoming O360-A4K: Oil 120° F, CHT 62° F @ 20° F OAT). Robust design saves time & money by allowing easy transfer to other engines or reinstallation after overhaul.
Famous for durability and reliability:
Heat entire engine
Extruded aluminum construction - durable but also lightweight (13 oz). The size of the unit is either 5 x 4-5/16” or 5 x 2-3/4” (depending on model). Models can be used for over 600 Lycoming and most Continental engines as well as some Franklin, Garrett, and Marathon.
No pads to blister and fail.
No fine wires to clutter engine compartment.
The preheater is impervious to puncture and contaminants.
Can be reinstalled after overhaul or to another engine.
Can be left on continuously (the heater is thermostatically controlled:
The heater will never overheat. A thermal fuse shuts off the heater should the heater ever become dislodged from the sump and the thermostat fail.
Can be used with portable generators.
220 watts; two, 110 watt heater cartridges in parallel.
Extremely simple installation. Installs with a 2-part epoxy (included) that is heat cured when unit is plugged in.
Cessna Owner Magazine described the easy installation of the Design Logic Preheater, “All (the installation) went precisely as the instructions said that it would with no skinned knuckles and no cussin’. It was just perfect… Installation is a straight-forward adhesive application, with no surprises.”
Minimal paper work. Installation is considered a minor modification with no STC or 337 entry needed. Simply make a log book entry.
Two-year, unconditional guarantee; the best in the industry