Observed arrival · 2026-10-07
FieldDesk’s two job-site sizing sheets
FieldDesk presents electrical and HVAC calculators for checking motor circuits, house services, room cooling, and duct sizes before ordering material.
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- For
- Electricians and HVAC technicians checking sizing before ordering material
- Worth noticing
- AmpDesk cites NEC provisions for motor current, wire size, breakers, overloads, and house service; AirDesk uses the equal-friction method for duct sizing.
Field notes
AmpDesk separates motor current, wire size, breaker or fuse, overload, long-run, and house-service checks rather than presenting one undifferentiated result. The listed references include NEC 430.52 for breaker or fuse sizing and 430.32 for overloads, which the page says are set from the nameplate. AirDesk describes supply-air calculation and equal-friction duct sizing; the homepage labels both tools as planning aids.
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Editorial observations of this landing page, not a rating.
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