apps / 6811376615
DuctRule: HVAC Duct Sizing
The ductulator, done right
Charles Hasse · Business · $4.99 · US storefront
- rating
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- ratings
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- updated
- Sep 25, 2026
- released
- Sep 25, 2026
v1.1
visible word pool · 8 words
title 26/30 chars · subtitle 26/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of DuctRule: HVAC Duct Sizing's pool that are public — the keyword field is not exposed by any API.
from the listing
The ductulator in your van is two cardboard discs and a rivet. This is that tool, on your phone, with the arithmetic done properly. Turn the outer ring to the airflow you have. Turn the blue wheel to the friction rate you are designing to. The answer sits in the middle, under the hairline: round diameter, air velocity, and the next stock size up. Up, never down, because a duct one size over costs a little sheet metal and a duct one size under costs the job. The velocity is…
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this page is one tool call
{ "tool": "app", "arguments": { "appId": 6811376615, "countries": [ "US" ], "subtitle": true } }
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