The Kränzle Therm Black 715 is the entry point into Kränzle’s Therm Black series — diesel-heated hot water pressure washers built for businesses that need serious cleaning performance without a permanent electrical hot water installation. Where the Electra range solves for fume-free indoor cleaning, the Therm Black series solves for portability and independence: with its own onboard diesel burner, the 715 heats its own water on demand, wherever there’s a power point for the motor and a diesel supply for the burner.
At the core of the machine is a forged brass pump, the same pump architecture used across Kränzle’s professional range, paired with a diesel-fired heating coil capable of taking water from cold up to a genuine hot wash, with a steam stage available for the toughest grease and grime. A water tank ahead of the pump buffers against fluctuations in mains water supply, protecting the pump from the knock and wear that comes from running dry or under-supplied.
Like the rest of the Therm Black series, the 715 runs Kränzle’s Total Stop system with a delayed motor cut-out: release the trigger and the machine drops to standby after a short delay, rather than continuing to run under pressure. That reduces fuel and power consumption, cuts noise between cleaning passes, and reduces wear on the pump and burner over a long working day.
The whole unit sits on a rugged 4-wheel trolley chassis, built to protect the motor, pump, and burner from knocks in busy yards, workshops, or wash bays, while still being manoeuvrable enough to move between jobs. Integrated storage keeps the trigger gun and lance secured to the machine rather than left loose, and a full set of safety features — including flame monitoring, low fuel cut-out, and overheat protection — keep the unit safe to run through a full commercial shift.
This is a solid choice for workshops, transport operators, agricultural users, and smaller commercial sites that need genuine hot water cleaning power in a more compact, more affordable package than the larger Therm Black 1017.
