Kidde Firex KF30 Heat Alarm Mains Interlinked with Battery Backup

Interconnectable Heat Alarm for Kitchens, Garages & High-Risk Areas

The Kidde Firex KF30 Heat Alarm is a reliable mains-powered heat detector with battery backup, designed for areas where smoke alarms are unsuitable, such as kitchens, garages and lofts.

With the ability to interlink up to 23 Firex alarms, the KF30 provides full-property protection by ensuring all alarms sound when heat is detected.

Available now from Alert Electrical your trusted UK supplier of fire safety products since 1996

Features

• Mains powered heat alarm (230V)
• 9V alkaline battery backup included
• Interconnectable with up to 23 Firex alarms
• Thermistor heat sensor (thermal detection)
• Ideal for kitchens, garages and loft spaces
• Alarm memory identifies triggering unit
• 85dB alarm sound output
• Test & hush button for easy operation
• Dust compensation & insect-resistant design
• Tamper-resistant locking feature
• Auto reset after activation
• 6 year manufacturer warranty

Designed for Challenging Environments

Unlike smoke alarms, the KF30 is designed to operate in areas where dust, steam or fumes are present, including:

• Kitchens
• Garages
• Lofts and utility rooms

Reducing false alarms while maintaining reliable fire detection.

Interlinked Fire Protection

The KF30 can be connected with up to 23 Kidde Firex alarms (smoke, heat or CO), ensuring:

• Whole-property alarm activation
• Early warning in all rooms
• Enhanced occupant safety

Reliable Backup Protection

Even during a power cut, the 9V battery backup ensures the alarm continues to function, maintaining safety at all times.

Easy Operation & Maintenance

• Combined Test/Hush button for quick testing and silencing
• Alarm memory function identifies the source alarm
• Auto reset after activation
• Tamper-resistant locking for added security

Compliant with UK Regulations

The KF30 meets required standards for domestic installations:

• BS 5446-2:2003 certified
• Suitable for systems complying with BS 5839-6 (Grade D)
• Meets UK Building Regulations for fire detection

Specifications

• Model: KF30
• Product Type: Heat Alarm
• Power Supply: 230V Mains + 9V Battery Backup
• Interlinking: Up to 23 units
• Sensor Type: Thermistor (Heat Detection)
• Alarm Output: 85dB at 3 metres
• Temperature Range: 0°C to +40°C
• Humidity Range: Up to 93% RH (non-condensing)
• Dimensions: 127 x 127 x 51mm
• Weight: 213g (including battery)
• Certification: BS 5446-2:2003
• Warranty: 6 Years

Ideal Applications

• Kitchens (where smoke alarms may false trigger)
• Garages and workshops
• Loft spaces
• Utility rooms
• Domestic fire alarm systems

Why Buy from Alert Electrical

Alert Electrical supplies trusted fire safety products used by electricians and homeowners across the UK, offering competitive pricing, fast delivery and expert support.