AERCO, a Watts brand, introduces MFC II, its next‑generation dual‑fuel condensing boiler engineered specifically for mission‑critical environments. Designed for continuous operation in applications such as hospitals, healthcare campuses, military facilities, data centers, laboratories, and industrial plants, MFC II delivers unmatched reliability, fuel flexibility, and efficiency where downtime is not an option.
MFC II combines multi‑fuel capability, including natural gas, propane, and #2 fuel oil backup, with industry‑leading thermal efficiency up to 94.5%, low NOx performance, and a rugged 3‑pass fire‑tube heat exchanger built for long‑term durability. Its large waterside volume stabilizes operation across wide load ranges and minimizes cycling, supporting resilient heating performance – even under fluctuating demand.
“Mission‑critical facilities demand uninterrupted heat, and the MFC II boiler was engineered with that reality at its core. Its dual-fuel flexibility, intelligent controls, and resilient construction ensure stable performance – even in the most challenging operating conditions. With MFC II, facilities gain a level of reliability and operational confidence that keeps essential systems running without compromise,” saidChristian Zapata, AERCO Product Manager, Hydronic Solutions.
Key Features & Benefits
The MFC II has been designed with a number of key features that create multiple benefits for facility owners and managers, including:
- Dual‑fuel capability: Seamlessly operates on natural gas, propane, or #2 fuel oil backup, ensuring uninterrupted heat delivery during fuel supply disruptions.
- High-efficiency performance: Achieves up to 94.5% thermal efficiency in condensing operation with gas and ultra‑low sulfur oil.
- Wide capacity range: Available from 4,000 to 12,000 MBH that supports mid‑ to large‑scale central plants and campus environments.
- Large waterside volume: Absorbs load fluctuations, reduces cycling, and supports safe operation under no‑flow conditions.
- Robust heat exchanger design: 3‑pass fire‑tube construction with full‑penetration tube welds and 316L stainless steel condensing surfaces ensures long‑term durability.
- Low emissions performance: Standard 30 ppm NOx, with 7 ppm ultra‑low NOx available up to 8,000 MBH.
- Industry‑leading burners: Equipped with Weishaupt power burners for precise combustion and stable performance.
- Advanced control flexibility: Integrates seamlessly with BAS via Modbus and supports lead/lag sequencing, remote setpoint, indoor/outdoor reset, and 4–20 mA modulation.
- Simplified serviceability: Spacious furnace and davited rear lid offer direct access for maintenance without removing the burner or fuel train
- Ducted combustion air capable: Suitable for variable primary flow installations.
Engineered for harsh, demanding environments, MFC II supports N+1 redundancy strategies, offers stable operation across wide load ranges, and integrates cleanly into new and retrofit plant designs. It is listed to UL, cUL, CSD‑1, and ASME standards and is available with multiple pressure ratings to support diverse system requirements.
Availability
MFC II is available through AERCO’s sales representative network. For technical specifications, dimensions, and other literature, visit the MFC II product page.
