YauBay Mini Preset Heater 15w TH04-A15 | Small Aquarium Heater

The YB Mini Preset Heater (15w, TH04-A15) is a compact, fully submersible aquarium heater built for small tanks and low water levels. It suits nano aquariums, small tropical setups, and terrariums where a full-size heater simply won't fit or isn't needed. The preset thermostat handles temperature regulation automatically, making it a straightforward, low-maintenance solution for smaller aquatic environments.

Preset Temperature Control

This heater runs at a factory-preset temperature — once that temperature is reached, it cuts out automatically and maintains the set level without any manual adjustment. There are no dials to calibrate or settings to manage, which removes the risk of accidental overheating.

Compact Build for Small Spaces

The small footprint is designed specifically for aquariums and terrariums with limited space or shallow water levels. Where standard heaters require a minimum depth to operate safely, this unit functions effectively in low water conditions — useful for species tanks, breeding setups, or desktop aquariums.

IP68 Fully Submersible Rating

Rated IP68, the TH04-A15 is fully submersible and sealed against water ingress. The casing is constructed from high-temperature resistant material for safe, continuous operation. An LED indicator shows working status at a glance, so you can confirm the heater is active without disturbing the tank.

Available in 10w, 15w, and 32w variants, the 15w unit is well-suited to smaller aquariums where precise sizing matters. For keepers who want reliable, automated heating without complexity, this heater covers the essentials cleanly.