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HCH Series

Lodronic™ Low-Temperature Hydronic Unit Heater

The Modine Lodronic™ HCH Series Low-Temperature Hydronic Unit Heaters are engineered for integration with high-efficiency boilers, geothermal systems, or air-to-water heat pumps. Unlike conventional oversized hydronic heaters that overwork boiler systems and reduce performance, the HCH Series excels at maintaining system balance, reducing electrical load, and delivering exceptional discharge air temperatures, all within a compact design. From warehouses to garages, the HCH Series provides unparalleled heating efficiency and performance.

Models

  • HCH – Horizontal Air Delivery, Low-Temperature Water
    • 6 Model Sizes: 22, 39, 67, 104, 170, and 195 MBH
Where To Buy

Highlighted Features

Performance Improvements with Lodronic

The Lodronic™ offers significant performance improvements when compared to standard hydronic unit heaters: 30% smaller footprint, 2.5x quieter, 50% less electric used, and 15% lighter.

Quiet, Clean Hydronic Heating

Using hot water instead of flame-based heating, the Lodronic™ HCH provides smooth, silent operation with no emissions—ideal for mechanical rooms, workshops, garages, and commercial spaces needing clean, consistent heat.

Compact & Contractor Friendly Design

The Lodronic’s lightweight, low-profile cabinet makes installation fast and simple. With multiple mounting orientations and easy access to piping and controls, it’s designed for seamless integration into any hydronic system.

Product Details & Specifications

Key Features
  • Optimal Performance: Specifically designed for high-efficiency boilers, geothermal systems, and air-to-water heat pumps.
  • Versatile Sizing: Available in six sizes ranging from 22,000 to 195,000 BTU/hr (based on a 140°F entering water temperature with a 60°F entering air temperature).
  • Convenient Connections: Supply and return side connections for simple installation.
  • Enhanced Heat Transfer: Constructed with copper tubes and mechanically bonded aluminum fins for superior heat transfer performance.
  • Durable Motors: Features totally enclosed motors with built-in thermal overload protection for longevity.
  • Compact Design: 30% smaller footprint and 15% lighter than traditional units while operating at 2.5x quieter levels.
  • Energy Efficient: High-efficiency 4-row coil with low water pressure drop and up to 50% less electrical consumption compared to older units.
  • Low-Temp Compatibility: Specifically engineered for lower entering hot-water temperatures (<140°F)
  • Higher Discharge Temperatures: Achieves approximately 35% higher discharge air temperature while using less water.
  • Cooling Capability: Chilled-water cooling with optional drain pan.
  • Certification: UL1995 certified for use in hydronic unit heater applications.
  • Proudly Designed, Engineered, and Assembled in the USA: Commitment to quality and craftsmanship in every unit.
Options

Model Sizes

  • 6 Model Sizes: 22, 39, 67, 104, 170, and 195 MBH

*Based on standard conditons of 140°F EWT with 60°F EAT, High Motor Speed

Supply Voltage

  • 115, 208, 240, 480, 575V/ I Phase
  • 208, 240, 480, 575V/ 3 phase

Additional Options

  • Hazardous location constructions available
Accessories

Factory-Installed

  • Fingerproof Fan Guard

Field Installed

  • Drain pan for cooling applications
  • Standard Thermostate(s)
  • Explosion-proof Thermostat
  • Thermostat Guard
  • Discharge Hoods
  • Manual Starter
  • Step-Down Transformer
Warranty
Applications

The Modine Lodronic™ HCH Series Low-Temperature Hydronic Unit Heaters are engineered for integration with high-efficiency boilers, geothermal systems, or air-to-water heat pumps.

Common Applications Include:

  • Warehouses and industrial buildings with hydronic heating systems.
  • Mechanical rooms or manufacturing plants where space is at a premium and noise must be minimized.
  • Entryways, garages, or workrooms connected to a building’s boiler or heat-pump water loop.

Tech Documents

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