SM4 Series

3-PASS SCOTCH MARINE SERIES FOR LOW CEILING HEIGHT
Commercial steel heating boilers for low pressure steam and hot water installation.
- Oil or Gas Fired
- Field Erect or Shop Built Package Boiler
- Developed for NYSERDA approved projects


Optional Commercial Tankless Coils

FAQ
A1: The SM4 Series is a compact, three-pass Scotch marine steam boiler designed for low-pressure steam or hot water applications. It's available in both oil and gas-fired configurations and can be factory-built or erected on-site, making it ideal for facilities with limited ceiling clearance.
A2: SM4 boilers are perfect for commercial environments requiring efficient heating solutions in compact spaces. They’re commonly used in schools, healthcare facilities, office buildings, and commercial complexes—especially where vertical height is restricted .
A3: Yes, the SM4 Series was developed to align with NYSERDA-approved projects. Its efficient three-pass design offers improved thermal performance, making it a strong contender for energy-compliant installations.
A4: Absolutely. The SM4 Series offers optional commercial tankless coils, enabling simultaneous steam and domestic hot water generation—adding versatility and reducing the need for separate water heaters.
A5: Yes, SM4 boilers can be ordered as shop-fabricated units or field-erected packages, allowing easy installation in challenging spaces and providing flexibility based on project size, available clearance, and logistical needs.