Wall-mounted recuperator HiSmart HT260515 for thin wall, single-room up to 46 m², humidity sensor, Wi‑Fi (Tuya), black

HiSmart HT260515 is a wall-mounted single-room recuperator designed for thin-wall installation in rooms up to 46 m² (approximately 500 sq. ft.). The unit alternately supplies fresh air and exhausts stale air through a single duct every 75 seconds, recovering heat from outgoing air to maintain a comfortable indoor microclimate year-round. The device includes a ceramic heat storage regenerator, air filters, outdoor temperature and humidity sensors, a remote control and Wi‑Fi connectivity for control via Tuya or Smart Vent apps.

Advantages

The recuperator recovers up to 90% of heat from exhaust air using a ceramic heat storage ball regenerator that provides improved heat accumulation and longer storage time compared with traditional honeycomb regenerators. The ceramic element is treated with an antibacterial composition and is washable and durable. A reversible axial fan with low power consumption and silent operation, automatic shutter to prevent backflow, and built-in thermal protection ensure reliable and quiet performance. Integrated filtration and a front carbon filter reduce dust, allergens and pollutants, while sensors and app connectivity enable automatic operation, scheduling and voice control.

Suitable for

• Apartments and individual rooms up to 46 m²
• Bedrooms, living rooms and small offices
• Thin external wall installations (wall thickness 150–250 mm)
• Users who want Wi‑Fi control via Tuya/Smart Vent and voice assistants

When it may not be suitable

The recuperator is intended for single-room ventilation and is not designed to service multiple rooms or large open-plan areas beyond its 46 m² rating. It requires a round wall opening and is made for thin-wall installation; buildings without a suitable external wall or with wall thickness outside the 150–250 mm range may need alternative solutions. The unit is also not equipped with a CO2 sensor.

Key specifications

• Recommended room area: up to 46 m² (≈500 sq. ft.)
• Airflow (max): 80 m³/h (≈50 cfm)
• Fan speed modes: 3 speed levels plus boost
• Power consumption: 12.1 W
• Current: 0.04 A / 0.05 A / 0.06 A
• Rotation speed: 1800 / 2122 / 2650 rpm (max 2800 rpm in boost)
• Heat recovery efficiency: up to 90%
• Noise level: up to 39 dB(A)
• Operating temperature range: -20 °C to +50 °C (non‑condensing, up to 80% RH)
• Ingress protection: IPX4
• Installation: through external wall, hole diameter 170 mm; duct diameter 158 mm; duct length adjustable 150–250 mm
• Front panel dimensions: 239.6 × 258 mm
• Weight: 4.3 kg
• Color: black
• Connectivity and controls: Wi‑Fi (Tuya / Smart Vent / SmartLife), remote control, external control buttons; compatible with Amazon Alexa and Google Assistant

How to use

Install the unit into a prepared round hole in the external wall with the duct length adjusted to the wall thickness (150–250 mm). After electrical connection (AC 100–240 V, 50/60 Hz), set up the unit using the included remote or connect via Wi‑Fi to the Tuya/Smart Vent/SmartLife app for remote control, timers and smart scenarios. The built-in humidity sensor can trigger automatic operation when humidity exceeds set thresholds, and the outdoor temperature sensor enables free-cooling when external air is within comfortable parameters. Use the app or external buttons to select low continuous ventilation or higher boost modes as needed.

What to consider before purchase

• Ensure wall thickness is between 150 mm and 250 mm and that a 170 mm hole can be made in an external wall
• Intended for single-room ventilation up to 46 m² — not for whole-house systems
• No integrated CO2 sensor; consider additional monitoring if CO2 measurement is required
• Verify local climate conditions are within the operating range (-20 °C to +50 °C, <80% RH non‑condensing)

Usage recommendations

For best performance install the HiSmart HT260515 on an exterior wall with unobstructed airflow, replace or clean the front filter regularly, and use the app to schedule ventilation and enable humidity-based automatic mode to maintain healthy indoor air with minimal energy loss.