Specifications include, but are not limited to: 1. Pressure vessel built to 150 psi, 250̊ F design standard and complies with ASME Code Section IV, “H” Code and is National Board Registered. 2. Pressure vessel is wrapped with 4” thick blanket of fiberglass insulation. 3. Boiler vessel enclosure is 16 gauge painted steel jacket mounted on a full-size, flanged steel base. 4. Electronic control panel is built into the NEMA-1 compliant enclosure, accessible via key-locked door(s). 5. Built for compliance with UL Subject 834 and NEC/NFPA Article 424-G. 6. Comply with ASME Safety Code CSD-1. 7. Main supply circuit lugs with integral branch circuit fusing. 8. Magnetic contactors rated @ 500,000 cycles. 9. 120 volt fused control transformer. 10. Automatic electronic temperature control with five or more steps. 11. Full port drain valve. 12. On/Off power switch with pilot light.