Manufacturer catalog • retrieved July 11, 2026

Current KOHLER Invigoration generator sequence

SteamDesignPro’s first release supports exactly one manufacturer system: the current KOHLER Invigoration K-323xx sequence. It does not mix retired K-17xx/K-55xx generator rules into these records.

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Published sizing and electrical data

KOHLER Invigoration K-323xx models in increasing published maximum volume order.
Model	Power	Maximum volume	Configuration	Dedicated service
K-32324-NA	5 kW	84 ft³	Single	1 × 240 V / 40 A
K-32325-NA	7 kW	112 ft³	Single	1 × 240 V / 50 A
K-32326-NA	9 kW	240 ft³	Single	1 × 240 V / 60 A
K-32327-NA	11 kW	317 ft³	Single	1 × 240 V / 60 A
K-32328-NA	13 kW	447 ft³	Single	1 × 240 V / 80 A
K-32329-NA	15 kW	500 ft³	Single	1 × 240 V / 90 A
K-32332-NA	18 kW	550 ft³	Tandem (2 × K-32326-NA)	2 × 240 V / 60 A
K-32333-NA	22 kW	634 ft³	Tandem (2 × K-32327-NA)	2 × 240 V / 60 A
K-32334-NA	26 kW	894 ft³	Tandem (2 × K-32328-NA)	2 × 240 V / 80 A
K-32335-NA	30 kW	1,000 ft³	Tandem (2 × K-32329-NA)	2 × 240 V / 90 A

How to read this catalog

A model’s maximum volume is a ceiling, not a target. First calculate finished volume, then apply KOHLER’s ceiling-height size advancement. A room can fit a model’s published volume and still require the next model because its ceiling is above 8 feet. Spaces above 1,000 ft³ or beyond the documented ceiling range are routed to manufacturer review.

See the calculation and exact boundary behavior