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Modine Lodronic™ Hydronic Unit Heater – High-Efficiency Heating Solution

Designed and engineered for use with high-efficiency boilers, the Modine Lodronic™ Hydronic Unit Heater delivers outstanding performance compared to standard hydronic unit heaters. As the first low-temperature hydronic water heater in the U.S., the Lodronic™ is ideal for electric and condensing boilers, geothermal systems, and air-to-water heat pump setups.

With a compact design, smaller fan, and lower system amp draw, the Lodronic™ improves efficiency without sacrificing heating power—making it a smart choice for residential, commercial, and industrial spaces.

🔥 Key Features

• First Low-Temperature Hydronic Water Heater – Perfect for high-efficiency boiler systems

• Increased Efficiency – Smaller fan and motor reduce amp draw

• High-Temperature Output for reliable performance

• High-Efficiency Four-Row Coil for superior heat transfer

• Low Water Pressure Drop for smooth operation

• Compact & Lightweight Design – Easy to install and maintain

📌 For detailed hot water performance data, refer to the Installation Manual under the Manuals tab.

⚠️ California residents: see Prop 65 Warnings

📊 Performance

• Heating Capacity: 21,688 BTU

• Maximum Air Flow: 370 CFM

• Maximum Flow Rate: 2.2 GPM

⚡ Electrical Data

• Current Draw: 0.6 Amps

📏 Dimensions & Weight

• Product Weight: 32 lbs

✅ Certifications

• ETL Listed: Yes

🛡️ Warranty Information

• Parts Warranty: 2 Years