Description
Argo AT series C fully packaged hot water electric boiler for radiant floor heating, hydronic baseboard/radiator, solar and other applications.
Cross-References:
- Electro Industries: EB-MS-12
- Stiebel Eltron: HSEB012
- Thermolec: B-12U FFB-H
Features:
- Made in the USA
- Solid and time proven, 1-piece cast iron heat exchanger with 20-year warranty
- 100% efficiency – no gas chimeny/vent pipe needed, zero emissions and no carbon monoxide
- Ultra-compact, lightweight, wall-hung design
- Ideal for radiant heating, baseboard and solar projects and applications requiring special temperature settings
- Automatic cycling of heating elements (replaceable) for extended life
- Advanced load management provides the option to allow your utility to remotely manage the boiler, reducing peak demands
- Two separate temperature set points for heating and DHW
- Built-in dry fire, brown out and freeze protection, replaceable fuses, operating limit & high limit protection, audible alarm
- Connections for flow switch (optional), LWCO (optional), 3-wire (or 2-wire) thermostat and circulator pump (w/ exercise option)
- LED display w/ button interface for easy programming & diagnostics
Technical Specifications:
- Boiler Net BTU Rating: 41,000 BTU
- Boiler Size (Watts): 12,000W
- Voltage: 240V, 3-wire, 50/60 Hz, single-phase (can be used at 208V with reduced output – see manual for details)
- Amps: 50A (Heating Elements), 6A (Pump/Accessory Load), 56A (Total)
- Minimum Circuit Ampacity: 70A
- Suggested Breaker Size: 70A
- Recommended Copper Wire: 4 AWG (140F/60C), 4 AWG (167F/75C), 6 AWG (194F/90C)
- Number of Heating Elements: 4
- Heating Element Size: 3,000 Watts
- Plumbing Connections: 1-1/4″ NPT Supply & Return, 3/4″ Pressure Relief Valve
- Water Temperature Heating Range: 90°F – 180°F (adjustable – for radiant, baseboards, etc.)
- Max Pressure: 30 psi (relief valve setting)
- Minimum Flow Rate (at 20°F rise): 4.1 GPM
- Dimensions: 14-5/8″ High x 18-5/8″ Wide x 9″ Deep
- Weight: 70 lbs
Warranty:
20-year heat exchanger warranty, 1-year parts warranty.






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