Free tools

Quick calculators

Each tool answers one question with published data. For the full worksheets, use the main calculators.

Mixing valve calculator

Load + supply/return temps → injection GPM → closest published Taco iSeries 2-way Cv.

Minutes to vent one radiator with each Gorton radiator vent and a Hoffman 1A at max, from published CFM.

One steam main → required CFM → how many Gorton #2 (or #1) eliminators, checked against the tapping.