
Optimized for high-efficiency residential heating, the Weil-McLain Ultra Series 4 is a premier floor-mount solution designed for consistent thermal comfort. This unit, identified by part number 672619209008, leverages advanced condensing technology to deliver 230 MBH input, ensuring robust performance for modern hydronic systems.
The internal architecture utilizes a nano-coated cast aluminum heat exchanger, which provides exceptional corrosion resistance and high-speed heat transfer. By employing a 5:1 turn-down ratio, the boiler modulates its output to match precise load requirements, effectively minimizing fuel consumption and reducing the wear associated with frequent cycling.
Key System Performance Baselines:
- Energy Efficiency: 94.1% AFUE rating for maximum fuel economy.
- Heat Output: 207 MBH output capacity for demanding residential zones.
- Modulation Capability: 5:1 turn-down ratio matches heating demand to actual load.
- Durability: Nano-coated cast aluminum heat exchanger prevents corrosion.
⚠️ Application Profile: Recommended for professional installation in residential hydronic heating systems, including baseboard radiation, radiant floor heating, and multi-zone climate control configurations.
| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 672619209008 |
| Model Designation | Ultra Series 4 |
| Input Capacity | 230 MBH |
| Output Capacity | 207 MBH |
| AFUE Rating | 94.1% |
| Body Construction | Nano-coated cast aluminum |
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
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