Assess the building. Plan the supplies.

Field-tested sizing calculations, supply recommendations, and report previews in our new black-and-green interface.

Job & sizing

Customer / job

Job number

Building type

Property ZIP code — offline climate pilot

Leave blank to use the original calculations.

What type of system is installed?

Furnace efficiency

Existing furnace output (BTU/h) — optional

Existing AC / heat pump size (tons) — optional

Enter equipment size when known. One system per report.

Home efficiency

Supply duct material

Return duct material (Home-Style / Commercial or T-Bar)

Cavity returns are recorded as existing conditions only; they are not assigned a verified airflow capacity. Check local code and manufacturer requirements before recommending reuse.

Filter location

Existing return grille face dimensions (inches)

Face width

Face height

Measure the grille face, not the duct opening. Estimates use gross grille area; actual free area and delivered CFM must be verified.

Add a room

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Room name

Square feet

Ceiling height

Existing supply count

Existing duct diameter

Rooms (0)

No rooms yet.

Technician notice — Preliminary Field Assessment

LAS FieldMech provides preliminary heating, cooling, and airflow estimates. It is not a Manual J calculation or a substitute for final equipment and duct design. Verify recommendations before installation.