Extreme and Hazardous Environments

Keltech tankless water heaters are built to last. We design and manufacture each custom built heater using rugged industrial strength components made of high quality copper and brass construction to extend the life of the heat exchanger.

To protect your investment, the entire unit is safely cocooned inside a NEMA certified stainless steel enclosure. It’s a commercial grade, self-contained, tankless water heating solution designed to meet your specs and the challenges of performing in the most rugged, most extreme industrial and corrosive environments. It’s the perfect water heating solution for the most extreme environments. There are no exposed or moving parts. There are no mixing valves and no re-circulation loops.





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Keltech tankless water heaters are tough enough to perform in Canada, Alaska, and in the Rockies where temperatures can get as cold as -30ºF.






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Keltech products are tough enough to survive with no or low maintenance in caustic or corrosive environments like strip mines, petro-chemical sites, or industrial manufacturing facilities where airborne dust, debris, and fluids shorten the life of other types of machinery.





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NEMA 4X ENCLOSURES MADE FROM STAINLESS STEEL

Extreme environments may require stainless steel­NEMA 4X enclosures. Indoors or out, these heavy duty enclosures are water-tight and corrosion resistant. They protect the heater against all sorts of hazards like falling dirt, rain, sleet, snow, windblown dust, splashing water, hose-directed water, and the external formation of ice. NEMA 4X enclosures also protect people against access to hazardous parts of the equipment.

COMPUTER INTERFACE OPTION FOR REMOTE MONITORING

An optional computer interface can help keep your employees safe when environment or distance makes it difficult to gain on-site access to the heater. An LED controller that can be programmed and monitored by connecting it with a personal computer or programmable logic controller (PLC) via serial communications.

EXPLOSION PROOF PURGE SYSTEM

For extreme environments that require explosion proof protection, Keltech’s tankless water heaters in NEMA enclosures can be equipped with a purge system. Heat, moisture, dust and corrosion are eliminated by providing the enclosure with a slow but continuous flow of inert gas or dry compressed air. This process removes flammable gases or prevents the accumulation of ignitable dusts within the protected enclosure.

The Purge System:

  • Reduces heat build-up in the enclosure
  • Inhibits metal corrosion and reduces moisture buildup
  • Provides continuous monitoring capabilities
  • Eliminates large, heavy explosion proof enclosure
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FREEZE PROTECTION

Keltech’s freeze protection option protects the heater and internal components in sub-zero conditions. It allows the unit to function at –30ºF with an 11 mph wind. Freeze protection is only available with NEMA 4 or NEMA 4X options.

GROUND FAULT

This safety feature detects electrical leakage from external sources to protect the equipment, electronics and the heat exchanger from being damaged in the event of a power fault.

DE-IONIZED WATER SOLUTIONS

Keltech’s tankless hot water heaters are A-rated for de-ionized water, chlorides, saltwater solutions, reverse osmosis water, caustic alkalis and many other applications. All Keltech large commercial/industrial heaters are available with an optional Teflon® like fluorocarbon protective coating on internal passageways. Fluorocarbon coatings protect the heat exchanger from corrosive environments.

WHEN CORROSION IS A CONCERN

The TE2 Protection System protects all heat exchanger surfaces that come in contact with heated fluids. The caustic and acid resistance of TE2 is very good and the solvent resistance is excellent. To protect the heater from corrosion, Keltech constructs its electric heating elements of electro-polished and passivated Incoloy 800 sheathing. All plugs and fittings are stainless steel.

WHEN FLUID PURITY IS CRITICAL

Keltech has developed a unique and exclusive protection system that meets the requirements for ultra pure water. To conform to FDA regulations governing direct food contact applications, the TE3 Protection System includes a fluorocarbon coating similar to the FDA approved Teflon® PFA on all surfaces and internal passageways that come in contact with the heated media. This is critical when you need to heat de-ionized water or to heat reverse osmosis water.

ETL/CETL CERTIFIED

The registered label for ITS Corporation, an international safety testing laboratory that tests and certifies Keltech tankless water heaters to UL499 and corresponding CSA standards. Keltech tankless water heaters are ETL/cETL certified.

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