Color: Black&White PTC constant-temperature heating + Fast heating ( 3s) The PTC core outputs smooth, even warmth with rapid start-up in about 3 seconds, reducing cold spots in compact enclosures. Stable thermal response avoids harsh swings, helping pets settle faster in winter nights or dawn chills. 2 Heating Modes: 300W / 600W + Auto thermostat logic Switch power to match season and size. Smart auto thermostat logic cycles the element to maintain comfort without constant tweaking. The integrated LED temperature display ( F) keeps status clear from across the kennel. Coverage volume up to 150 ft + Ambient 95 102 F Designed for well-insulated small spaces such as dog house / chicken coop / cat shelter. Typical effectiveness up to 150 ft within 95 102 F ambient range; for drafty or larger houses, add insulation or a second unit. New tower fan design: Brushless motor + Low-noise for sleep A vertical airflow path driven by a brushless motor delivers steady circulation at Noise < 45 dB, suitable for nighttime. Gentle, even airflow helps avoid hot-face/cold-back discomfort common with spot heaters. 20-second delayed fan shut-off After the element turns off, the fan continues 20 seconds to purge residual heat from the exchanger. This evens out temperature curves, reduces short-cycling, and helps extend the service life of internal components during daily use. Chew-proof / reinforced power cord The 6-ft steel-spring anti-chew cord resists bites and abrasion for safer long-term operation around active pets. Strain-relief at the inlet reduces wire fatigue when you route the heater along walls, rafters, or through kennel frames. Detachable Magnetic Hair-Proof net A magnetic mesh cover pops off in seconds to clear hair and dust without tools. Keeping the inlet clean preserves airflow and temperature stability, lowering noise and helping the heater run efficiently through the cold season. Multiple safety protections Multi-layer stack includes PTC constant-temp control, thermostat, temperature sensor, thermal fuse, and overheat cut-off. An insulated shell reduces accidental touch risk. Designed for dependable use in family homes and foster shelters. 2 installation ways: Wall-mount / Floor-standing Mount to a wall for hands-free, space-saving warmth, or place on the floor to aim heat directly at the bedding area. Compact housing fits tight corners and door sides; hardware is straightforward for fast setup.Outdoor Indoor. Multi-scene flexibility + Practical tips Works for Dog House / Chicken Coop / Cat/Rabbit Hutch and similar small enclosures. Best results occur with sealed drafts, added door flaps or foam board insulation, and unobstructed front airflow toward the occupied zone.