Warranty Info
Peace of Mind Industry Leading Warranty Program: Standard – 2-year parts and 10-year primary heat exchanger warranty. Plus – 5-year parts, 2-year labor allowance, and 10-year primary heat exchanger warranty with registration. Elite – 6-year parts, 3-years labor and 12-year heat exchanger warranty offered with registration, combustion analysis and hydronic system treatment. See warranty for details.
Features and Benefits
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Caleffi 548 Series Separator
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iAssist Wi-Fi Connectivity for Easy Troubleshooting
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Industry Leading Performance with 5+ GPM Hot Water while Fully Condensing
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Stainless Steel Fire Tube Heat Exchanger
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Peace of Mind Industry Leading Warranty Program with Coverage up to 6 yr. Parts, 3 yr. Labor & 12 yr. Heat Exchanger
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CTRLMAX Control System with 60 Second Set-up
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Turndown Ratio up to 8:1
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AFUE Efficiency Rating of 95%
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3 in 1 Universal Vent Adapter
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ASME Certified
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Natural Gas or Propane
Installation/User Manuals
Exalt FSB Installation & Maintenance Manual
Exalt WHB & FSB User's Information Manual
Exalt WHB & FSB User's Information Manual - French
Exalt FSB Application Guide
Exalt FSB Application Guide; Display Software 0.40 or later
Exalt Natural Gas to Propane Conversion Instructions
Exalt Propane to Natural Gas Conversion Instructions
Repair Manuals
Exalt Blower Replacement
Exalt Gas Valve Replacement
Exalt Venturi Replacement Kit
Exalt Hydroblock Replacement
Exalt 3Way Valve Replacement
Exalt 3Way Valve Motor Replacement
Exalt Flow Sensor Replacement
Exalt FSB Human Machine Interface Removal
Exalt LP Update Kit
Exalt Floor Standing Control Module Replacement
Product Comparison
Exalt Model | Combi 155 | Combi 199 |
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Min Input (BTU) | 19,375 | 24,875 |
Max Input (BTU) | 155,000 | 199,000 |
Turndown Ratio | 8:1 | 8:1 |
AFUE | 95% | 95% |
DOE Heating Capacity (MBH) | 142 | 184 |
AHRI Net Rating (MBH) | 123 | 159 |
Fuel | NG & LP | NG & LP |
Gas Connection | 3/4″ | 3/4″ |
Supply / Return Connections | 1” | 1” |
Domestic Inlet/Outlet Connections | 3/4″ | 3/4″ |
Vent/Air Connections | 3” | 3” |
3” Maximum Vent Length | 100’ | 100’ |
Water Volume (Gallons) | 3 | 4 |
DHW Output GPM (70°F Rise) | 4.0 | 5.3 |
DHW Output GPM (75°F Rise) | 3.7 | 4.9 |
DHW Output GPM (80°F Rise) | 3.5 | 4.6 |
DHW Minimum Flow Rate (GPM) | 0.5 | 0.5 |
DHW Maximum Operating Pressure (PSI) | 150 | 150 |
CH Maximum Flow Temperature (°F[°C]) | 185 (85) | 185 (85) |
DHW Maximum Flow Temperature (°F[°C]) | 150 (65) | 150 (65) |
Cabinet Height | 33” | 33” |
Cabinet Width | 21 3/4″ | 21 3/4″ |
Cabinet Depth | 16 1/2″ | 16 1/2″ |
Weight (Lbs) | 110 | 128 |