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SkilledCurrent Weekly · Issue #1

Welcome to SkilledCurrent Weekly — Issue #001

Sharper know-how for every trade. One email, once a week, no fluff.

The Wire

R-454B is here. EPA's phasedown is pushing R-410A out, and R-454B systems are landing on trucks now. The practical stuff: it's mildly flammable (A2L), so installs need leak detection, different handling, and updated recovery practices. Full guide:

5 Things Worth Knowing

1. HVAC — Static pressure tells you more than a gauge reading; the full guide at walks symptom-to-cause. 2. Electrical — EV charger wire sizing at depends on the breaker and run length, not the plug. 3. Plumbing — T&P relief discharge piping at fails inspection more than you'd expect. 4. Code & Inspection — The 2,000 CFM duct smoke detector rule at catches more jobs than any single code cite. 5. Business — Labor rate isn't your hourly wage. It covers overhead, downtime, and profit.

Field Guide of the Week

Static Pressure Explained:

Tool of the Week

Markup vs Margin Calculator: . A 50% markup is NOT a 50% margin.

Pass Inspection

Inspectors flag missing drip-legs before most other gas issues. Catch them first:

Business Wire

Six figures of revenue doesn't mean six figures in your pocket.

New on SkilledCurrent

R-454B guide, 2,000 CFM rule, CSST bonding, EV wire sizing, static pressure.

Question of the Week

"CSST: does it have to be bonded?" → The manufacturer matters.

Bottom Line

Sharper know-how for every trade. One email, once a week, no fluff.