Chronomite CM-40L/240 Instant-Flow® Tankless Water Heater
Maximum Heating Power for Demanding Point-of-Use Applications
The Chronomite CM-40L/240 is the highest-output model in the 240V Instant-Flow® CM Series, delivering fast, high-temperature hot water for commercial and institutional sinks—even in cold climates. With an impressive 8,960 watts of power and an ultra-compact form factor, this unit provides consistent on-demand hot water without the standby losses of traditional tank heaters. It's ideal for high-traffic restrooms, healthcare, industrial settings, and other demanding point-of-use applications.
Performance Benefits
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Feature
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Specification
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Benefit
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Power Rating
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40 Amps, 240 Volts, 8,960 Watts
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✓ Maximum power output for highest temperature rise
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Temperature Rise
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~159°F at 0.40 GPM (approximate)
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✓ Handles cold incoming water and delivers true hot output
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Activation Flow Rate
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0.20 GPM
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✓ Works with water-saving low-flow faucets
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Size
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6-1/4" (H) x 9-5/8" (W) x 2-3/4" (D)
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✓ Fits in confined spaces—ideal for under-sink installations
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How It Works: Instant Heating Technology
Stage 1: Flow Activation
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Function: Unit activates when water flow reaches 0.20 GPM
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Benefit: Eliminates energy waste—only heats water when needed
Stage 2: Precision Heating
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Function: Nichrome heating elements quickly heat water in a Celcon plastic flow chamber
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Benefit: Provides near-instant, stable water temperatures without recovery delay
Key Features
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Cast Aluminum Housing: Rugged, corrosion-resistant, and vandal-resistant—ideal for commercial installations
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Unlimited Hot Water: On-demand heating means no tank, no wait, no limit
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99% Energy Efficient: Heats water only as needed—reduces operating costs
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Compact Design: Installs under sinks or in small utility spaces
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Sustainable Solution: Reduces water and energy waste, supporting LEED and green building goals
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No Pressure Relief Valve Required: Speeds up installation (verify local code requirements)
Compared to Traditional Tank Heaters
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Feature
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CM40L/240 Tankless Heater
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Traditional Tank Heater
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Energy Use
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99% efficient, heats on demand
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Constant energy to maintain temperature
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Hot Water Supply
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Unlimited
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Limited by tank capacity
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Installation Size
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Compact: 6-1/4" x 9-5/8" x 2-3/4"
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Bulky and space-consuming
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Maintenance
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Minimal required
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Requires regular flushing and maintenance
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Lifespan
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Long-lasting, no tank corrosion
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Shorter due to tank degradation and sediment buildup
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Certifications & Compliance
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UL Listed: UL 499 compliant for electrical safety
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CSA Certified: Meets CAN/CSA C22.2 No. 88 standards
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UPC / IAPMO Approved: Code-compliant for North American plumbing systems
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ADA Compliant: Suitable for accessible installations
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Lead-Free Compliant: Conforms to U.S. Federal Public Law 111-380
What’s Included
- 1 × Chronomite CM40L/240 Instant-Flow® Tankless Water Heater
- 3/8" Compression Fittings (Inlet & Outlet)
- Faucet Flow Control Adapters
- Installation and Operation Manual
Ships with standard (ADJ) option. To request a preset factory temperature at 104°, 110° or 120°F, please email us immediately after placing your order.
Installation:
A licensed plumber is required for installation per your local regulatory requirements.
Before beginning, turn off the breaker and disconnect the electrical supply to the area.
Shut off the water supply to the fixture.
Double‑check that everything has been turned off prior to proceeding.
For optimal performance, Chronomite electric tankless water heaters should always be installed within 18 inches of the point of use.
Maintenance:
Periodically inspect the supply lines, connections, and heater for any moisture, corrosion, or other preventable problems.
