Technical perspective
Built from field and code-compliance experience.
SkilledCurrent identifies relevant professional context and sources on each guide, then directs readers to current official requirements for job-specific decisions.
SkilledCurrent author
Jordan Lovell
Building Inspector | Mechanical Plans Examiner | HVAC Contractor
Jordan Lovell brings experience from both the contracting and code-enforcement sides of the skilled trades. His background includes residential and commercial building inspection, mechanical plan review, HVAC contracting, field installation, code compliance, and contractor operations. His SkilledCurrent coverage focuses primarily on HVAC, mechanical systems, building codes, inspections, contractor operations, and the intersection between field practice and code compliance.
Articles
Guides by Jordan Lovell
Code & InspectionCode Guide
The 2,000 CFM Duct Smoke Detector Rule Explained
The familiar 2,000 CFM shorthand leaves out the system design, return-air path, and adopted-code details that decide the answer.
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Code & InspectionCode Guide
CSST Bonding Requirements Explained: Why the Manufacturer Matters
The right CSST bonding answer begins with the product identification and its current installation instructions—not a one-size-fits-all shortcut.
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HVACDeep Dive
R-454B Refrigerant: What HVAC Contractors Need to Know
R-454B is not a drop-in replacement for R-410A. The equipment, tools, procedures, and EPA timeline all deserve a deliberate transition plan.
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ElectricalCode Guide
EV Charger Wire Sizing Explained
EVSE conductor sizing begins with the equipment’s configured output, but the answer also depends on continuous loading, terminations, wiring method, and service capacity.
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HVACHVAC Pricing Field Guide
HVAC Labor Rate Guide: How to Price Service Work Without Guessing
A service call can look busy and still fail to carry its share of the truck, the office, and the time between jobs. Use this field guide to build a labor-rate starting point before you quote the work.
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HVACTechnical Guide
Static Pressure Explained for Residential HVAC Technicians
External static pressure gives technicians a view of the resistance the blower is working against—often before refrigerant readings tell the full story.
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