Amsterdam's painter-inventor cut fire losses by 99% with a leather hose

Seventeenth-century Amsterdam was likely the wealthiest city on earth, full of candle-lit curtains, pitch, tar and sugar refineries — yet it escaped a Great-London-style conflagration, not because its fire system was strong but because a painter rebuilt it. In 1669 a sugar refinery burned to the ground despite the city's 60 Nuremberg Hautsch engines, costing 195,000 guilders; in 1672 a fire at Joan Blaeu's printing office — the largest in the world — destroyed 382,000 guilders of buildings, plates and stock.

Jan van der Heyden, the 'Dutch Canaletto' who had already lit the city with 1,800 lanterns as director of municipal lights, and his brother Nicolaas redesigned the engine: a leather suction hose feeding it continuously instead of a bucket brigade, a long flexible 'snake' hose reaching deep inside buildings, and an air chamber for continuous high-pressure flow. The council began retrofitting in November 1672, and a harbor fire that winter settled the argument: one new engine, arriving late, preserved everything still standing — the last fire fought with unmodified engines.

In 1681 the mayors ordered engines for all sixty districts and had the brothers write the regulations — rules 'honeycombed with market incentives', as historian Peter Molloy put it: watchmen who failed to notify firefighters paid the firefighters' fines, households that fought fires before sounding the alarm were fined, and the first three companies on scene won money. Per the Van der Heydens' account, which the magazine argues no contemporary could have falsified: from 1682 to 1687 Amsterdam had 41 fires with losses of 18,353 guilders — under one percent of the losses of 1670 to 1681.

Continuous suction, a flexible 'snake' hose that reached the fire's seat, and cash prizes for the first crews on scene: engineering and incentives rebuilt as one system.

The device changes were inseparable from the operating system: hoses without alarms and arrival prizes would have stayed wet equipment.

A demonstration settled adoption — the new engine's late arrival at the harbor fire was a public, irreversible proof of difference.

Incentives covered every link in the chain: reporting, dispatch speed and crew response were each paid or fined.

History's translation credits the approach as one of the earliest instances of what is now called systems analysis.

Invent the deployment, not just the device: a better pump only wins when response speed, alarms and incentives are redesigned around it — 'systems analysis' two centuries before the term.

By 1682 Amsterdam ran new engines, new regulations and new crews in all sixty districts; losses over the next five years fell to less than one percent of the prior decade's. Van der Heyden's book on the engines, with before-and-after cost estimates, circulated as both chronicle and marketing; his street-lighting system ran in parallel under his own directorship.