HVAC Shop Blog

Nitrogen is one of the simplest ways to protect HVAC installs from long-term headaches. This guide covers the real on-site uses of nitrogen in Australia: purging during brazing to prevent black oxide, controlled leak testing and pressure holds, commissioning checks before charging, and practical cylinder management so your kit is ready when you need it.

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.