FOR TECHSFIELD NOTES
For the trade.
Code updates, field education, and Hampton Roads shop talk — written for HVAC techs, not homeowners. Jargon welcome.
Measure & Prove
Why I measure static pressure on every maintenance
The blood-pressure analogy, NCI’s pressure budgets, and what two minutes with a manometer tells you that a visual inspection never will.
K&A Mechanical · Oct 3, 2026Read the postCode & Refrigerant WatchNew refrigerant rules: what actually changed for Virginia techs
The AIM Act GWP≤700 rule, R-32/R-454B reality, A2L handling basics, and the scrapped install deadline nobody told your customers about.
K&A Mechanical · Oct 3, 2026Read the postShop TalkRunning an honest one-man shop
No upsell culture, no blue-light pitches, pricing maintenance so you can afford to do it right — and why "your system is fine" is a complete sentence.
K&A Mechanical · Oct 3, 2026Read the post