HVAC Shop Blog

Testoterm Mini Indicators are Ø15 mm round irreversible heat labels designed for compact HVAC components, small motors, bearings and tight spaces where larger strips won't fit. This guide covers the 15 mm format, available temperature ranges from 116–138°C through 199–224°C, how to read multi-point activation, installation requirements, and when to use Mini Indicators instead of Measuring Points.

Testoterm temperature indicators are irreversible, self-adhesive labels that permanently record when a surface exceeds a rated heat threshold. This technical guide explains how the colour-change chemistry works, how to choose the right threshold, which format suits your application, and how to document heat events correctly across HVAC compressors, motors, switchboards and plant-room equipment.

The Fieldpiece DR82 is Australia's go-to mid-range infrared refrigerant leak detector for commercial HVAC technicians. This complete guide covers how the DR82's infrared sensor works, where it outperforms heated diode technology, correct zeroing and probe technique for real Australian jobs, and how it compares to the TEK-Mate, SRL2, and D-TEK Stratus. Essential reading for any tech considering the step up to professional infrared detection.

The Inficon TEK-Mate is Australia's most widely used entry-level refrigerant leak detector — and for good reason. This complete guide covers how the TEK-Mate works, where it performs best, correct probe technique for Australian conditions, sensor tip maintenance, and how it compares to mid-range and premium options. Essential reading for apprentices, residential techs, and anyone considering their first professional leak detector.

Confused about heated diode vs infrared leak detector technology? This guide explains how each sensor works, compares sensitivity, false alarm resistance, and sensor lifespan side by side, and tells you which technology suits residential splits, commercial HVAC, and refrigeration work in Australia.

Picking the wrong refrigerant leak detector costs you time, refrigerant, and repeat call-backs. This complete Australian buying guide compares every detector type — heated diode, infrared, UV dye, ultrasonic — across budget tiers from under $300 to $700+. Covers top brands including Inficon, Fieldpiece, and Javac, with straight application advice for residential splits, commercial HVAC, and large refrigeration systems.

Inficon and Fieldpiece are the two dominant refrigerant leak detector brands in Australia — but they suit different types of technicians. This guide compares every model head-to-head: TEK-Mate vs SRL8, DR82 vs D-TEK Stratus, heated diode vs infrared, and standalone vs Job Link ecosystem. Find out which brand fits your work pattern and budget before you buy.

If you work on air conditioning and refrigeration systems in Australia, you already know that refrigerant leaks can turn a simple service call into repeat visits, lost time, and frustrated customers. This guide explains the main types of leak detectors used in HVAC, how each method works on real jobs, and how Aussie tradies can choose the right setup for faster, more reliable fault finding.

A nitrogen regulator is the quiet hero of pressure testing and brazing purge in HVAC. This guide explains how it works, what to look for, and how to choose the right regulator for Australian job sites.

Bend radius mistakes can lead to kinks, restrictions, vibration, and future leaks. This guide explains HVAC bending specs, angles, bend allowances, and practical best practice for cleaner refrigerant line installs.

Manual pipe benders are fast and portable, but technique matters. This guide breaks down lever, ratchet and spring benders, plus practical marking, bending and quality checks to help Aussie HVAC techs get clean copper bends without kinks.