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GENERAL LIFE · ROOM THERMOSTAT

General Life GAIA HT25

GAIA HT25 is a General Life room thermostat. This profile documents the wired version’s published technical data and keeps other manufacturer-listed configurations separate.

Model Identification

Manufacturer: General Life
Series: GAIA
Model: HT25
Category: Room thermostat

Key Specifications — GAIA HT25 (Wired)

Dimensions (H/L/W)85.7mm / 85.7mm / 33.5mm
Power supply (manufacturer: Operating Current)3V DC (2 x AAA Alkaline Battery)
Relay NO Switching Current2A/30VDC (Resistive Load) 0.5A/125VAC (Resistive Load)
Temperature measurement accuracy (manufacturer-reported)0.1°C
Operating sensitivity (manufacturer-reported)(-2.0°C) – (+2.0°C)
Setpoint range (manufacturer: Operating Temperature Range)(5°C) – (30°C)
Battery Life1 Year (2 x AAA)
Ambient operating temperature(-10°C) – (+50°C)
Storage Temperature(-20°C) – (+60°C)
Specification scope: These values refer to the wired GAIA HT25 only. RF and SMART versions have separate receiver, power and connectivity requirements. The manufacturer’s 0.1°C measurement figure is reproduced as reported; it is not an independently established ±0.1°C accuracy claim. Check the current manual and exact variant before installation.

Related Pages

GAIA series · General Life

Official Resources

Source: General Life’s GAIA HT25 wired product specification. Technical data checked on 11 October 2026.

Official GAIA HT25 Wired Product Page

AirAlign is an independent informational resource.

Model selection and commissioning — GAIA HT25

Dimensions and supply: GAIA HT25 has a manufacturer-listed 85.7mm / 85.7mm / 33.5mm housing (compact-style). Room-unit supply is 3V DC (2 x AAA Alkaline Battery). Verify wall coverage, cable exit, battery accessibility and clearance from sources of hot/cold air before mounting.

Relay compatibility: The exact wired profile gives 2A/30VDC (Resistive Load) 0.5A/125VAC (Resistive Load) for the normally-open contact. These resistive ratings cannot be used as a universal motor/boiler starting-current rating. Identify the heating unit’s voltage-free versus powered thermostat input and the correct contact circuit before connection.

Control setup: The recorded room setpoint band is (5°C) – (30°C); operating sensitivity is (-2.0°C) – (+2.0°C). This setting span is not a measurement-accuracy band; investigate permitted hysteresis and programmable control behavior in the current manual. Confirm heat-source cycling response and suitable room placement.

Not interchangeable by name: A sibling GAIA HT25 RF or SMART configuration can use a separate receiver or different control interface. Do not infer its voltage or programming functions from this wired model. The linked original General Life page remains the source for the exact revision.