Temp Limiting – What is it in Vaping?

Definition

Temp Limiting is a safety feature found on advanced vape mods that prevents the coil from exceeding a user-set maximum temperature. Instead of continuously firing until the wick is dry, the device automatically throttles or cuts power when the coil reaches the chosen limit. This protects against burnt cotton, harsh Hit“>throat hit, and harmful dry hits, while still allowing full vapour production. In short, it is an easier, “set-and-forget” version of full Temperature Control (TC) that works with everyday kanthal or nichrome coils as well as with special TC wires.

Technical Details

Temp Limiting relies on a high-resolution chipset that monitors live resistance changes in the coil. Every metal increases its electrical resistance slightly as it heats; the mod translates that tiny rise (often only 0.001–0.003 Ω) into a temperature value using a programmed TCR (Temperature Coefficient of Resistance). When the calculated temperature matches the user-selected ceiling—usually adjustable from 100 °C to 315 °C (212 °F–600 °F)—the processor reduces duty cycle or pulses wattage to keep the coil under the limit. Devices typically offer three preset TCR profiles (SS316L, Ni80, Ti) and one custom slot. Unlike full TC mode, Temp Limiting does not lock resistance at room temperature; instead it “learns” the coil in real time, making it compatible with standard tank coils and top-fill pods that do not advertise TC compatibility.

Usage & Tips

• Start 20 °C below the cotton’s known burning point (≈220 °C) and increase gradually until flavour peaks without singee.
• Ensure the coil is at room temperature before first installation so the chipset can establish an accurate baseline resistance.
• If the mod asks “New Coil?” after refitting a tank, always select “Yes” to reset the resistance reference.
• Chain-vapers: give the atomiser a 30-second rest between long pulls; the feature can only cool what the metal, not the saturated cotton, reveals.
• Temp Limiting is not a Battery Safety”>battery safety tool—pair it with high-drain cells rated for your chosen wattage range.

History & Context

Early DNA20 boards (2012) pioneered true Temperature Control, but required vapers to build with nickel 200 or Wire“>titanium wire. As sub-ohmtank coils became popular, manufacturers looked for a method that protected flavour without forcing exotic wire. Evolv’s “Replay” (2018) and Vaporesso’s “Pulse” mode (2019) refined the idea into the Temp Limiting we see today—bringing TC-grade safety to everyday kanthal mesh strips found in most Australian vape shops.