Recuperator HiSmart HT260522 for Thin Wall Single-Room up to 46m² with CO₂ Sensor, Wi‑Fi (Tuya), white

The HiSmart HT260522 wall-mounted recuperator is a compact energy-recovery ventilator for single rooms up to 46 m² (about 500 sq.ft). It alternately supplies fresh air and exhausts stale air through a single duct every 75 seconds, helping maintain a stable indoor microclimate year-round. The unit integrates a ceramic heat-storage regenerator, CO₂ sensor, outdoor temperature sensor, air filtration and Wi‑Fi control (Tuya), and is finished in white for discreet wall installation in thin walls.

Advantages

The recuperator recovers up to 90% of heat from outgoing air using a ceramic heat-storage ball regenerator that provides higher efficiency and longer heat retention than traditional honeycomb ceramic types. The regenerator is treated with an antibacterial composition, is washable and durable with an expected service life of around 10 years. A reversible axial fan with low power consumption and quiet operation is combined with an automatic shutter to prevent return airflow. Built-in filters and a front carbon filter reduce dust, allergens and odors. Integrated sensors (CO₂, humidity, outdoor temperature) and remote/Wi‑Fi control via Tuya or Smart Vent apps allow automated and scheduled ventilation, including free-cooling when outdoor conditions permit.

Suitable for

• Apartments, studios and single rooms up to 46 m²
• Small offices or commercial rooms requiring constant ventilation
• Thin external walls where a compact wall-mounted duct (150–250 mm) is required
• Users who want app control, scheduling and voice integration (Amazon Alexa / Google Assistant)

When it may not be suitable

The unit is designed for single-room use and is not intended to ventilate multiple separate rooms or large open-plan spaces beyond its 46 m² capacity. It requires an external wall opening (170 mm hole) and a wall depth of 150–250 mm, so it may not be suitable where such installation is impossible or where through-wall work is restricted.

Key specifications

• Recommended room area: up to 46 m²
• Airflow (max): 80 m³/h (≈50 cfm)
• Fan speed modes: 3 (plus boost)
• Power consumption: 12.1 W
• Current: 0.04 A / 0.05 A / 0.06 A
• Rotation speed (RPM): 1800 / 2122 / 2650; max 2800 (boost)
• Regeneration (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)
• Protection class: IPX4
• Installation: through external wall
• Required wall hole diameter: 170 mm; duct diameter: 158 mm; adjustable duct length: 150–250 mm
• Front panel dimensions: 239.6 x 258 mm
• Weight: 4.3 kg
• Colour: white

How to use

Install the unit in a prepared round hole in an external thin wall (170 mm diameter), adjusting the duct length to match wall thickness (150–250 mm). Connect to mains AC 100–240 V, 50/60 Hz. Use the included remote, the Tuya/Smart Vent app or the external control buttons to select one of three speed modes or the boost function. The device alternates supply and exhaust every 75 seconds and can operate in free-cooling mode when outdoor conditions are within set parameters. Set timers, group devices or create smart scenarios via the app; voice control is available through Amazon Alexa and Google Assistant. Regularly check filter condition and follow alerts for maintenance or filter replacement.

What to consider before purchase

• Requires a 170 mm diameter hole through an external wall and 150–250 mm wall depth for duct installation
• Designed for single-room ventilation up to 46 m² — not for whole-building ventilation
• Operating environment must be within -20 °C to +50 °C and relative humidity below 80% (non‑condensing)
• Wi‑Fi and Tuya/Smart Vent app required for full remote and smart features

Usage recommendations

Use continuous low-speed ventilation for background air exchange and activate higher speed or boost when CO₂, humidity or odors increase. Follow app alerts to clean or replace filters, and if possible use free-cooling when outdoor air temperature is comfortable to reduce energy use.