Climat Control

Our climate control range

Running an indoor garden without proper climate control is like driving without a dashboard — you might get somewhere, but you won't know what's going wrong until it's too late. Temperature swings stress plants and slow growth. Uncontrolled humidity invites mould or dries out foliage. An extraction fan at full speed wastes energy and creates unnecessary noise. The right equipment solves all of these issues by monitoring conditions and adjusting your devices automatically. At Plant & Flower you'll find thermo-hygrometers, dimmers, controllers, heaters and humidifiers — from entry-level to professional grade.

Monitoring: thermo-hygrometers

Accurate data is the foundation of any climate strategy. The thermo-hygrometer displays real-time temperature and relative humidity while logging minimum and maximum values. The Deluxe version adds a remote probe, letting you track conditions at two locations simultaneously — for example at canopy level and near the substrate. The compact Otio thermometer is a simpler alternative for basic setups.

Target ranges by growth stage

• Vegetative growth: 22-26 °C during lights-on, 18-22 °C lights-off, humidity 60-70 %
• Early flowering: 22-26 °C lights-on, humidity 50-60 %
• Late flowering: 20-24 °C, humidity 40-50 % to limit botrytis risk
• Cuttings and young plants: 22-25 °C, humidity 65-75 %

Manual speed control and automation

A fan dimmer lets you manually reduce extraction speed to balance airflow against noise. The Variispeed is a wall-mounted dial for single fans. The Cli-Mate fan speed controller delivers smoother voltage regulation, producing less motor hum at low speeds.

For true automation, Cli-Mate controllers use sensors to continuously measure temperature or humidity and adjust connected device speed in real time.

Cli-Mate range: which model for which setup?

• Mini Controller (3A / 7A) — single-device temperature control, suits compact grow tents with one extraction fan
• Temp Controller / Humi Controller — dedicated regulation of either temperature or humidity with external probe
• Twin Controller (4×4A) — manages two devices independently on separate circuits, temp or temp+humidity variants
• Smart Controller — the flagship, handling temperature, humidity and negative pressure across multiple devices

Heating and humidifying: completing the system

Belgian winter nights can push temperatures in unheated spaces well below the 18 °C minimum most plants require. A day-night swing exceeding 10 °C causes stress, slows metabolism and increases condensation-related mould risk. The Lighthouse heater range covers three wattages: 45 W for tents up to 80×80 cm, 80 W for 100×100 to 120×120 cm, and 135 W for 150×150 cm and larger. Always connect a heater to a temperature controller so it only kicks in during the dark period when temperatures actually drop.

For cuttings and young plants, the Supermist humidifier with its 8-litre reservoir maintains stable humidity using quiet ultrasonic misting. Paired with a Humi Controller, it shuts off automatically once the target is reached — preventing excess moisture that could trigger botrytis on mature flowers. Combine everything with proper ventilation and protected electrical accessories (timers, surge-protected power strips) for a safe and organised installation.

FAQ - Frequently asked questions about climate control

Everything is in stock and ships fast from Belgium. Order before 2 PM for next-day delivery.