Image of an exalt combi boiler

Exalt Combi

The Exalt features an all stainless steel fire tube heat exchanger. Combi sizes are available in 155 and 199 MBH for all your home heating and your hot water needs. CTRLMAX Control System-EZ Setup allows for a quick :60 second setup. Easy troubleshooting in plain text, no codes. The large plate heat exchanger provides industry leading performance. 5+ GPM hot water while fully condensing in DHW mode.

Warranty Info

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

  • Market Leading Warranty Program with Coverage up to 6 yr. Parts, 3 yr. Labor & 12 yr. Heat Exchanger
  • Endless Hot Water
  • Large Brazed Plate Heat Exchanger to Maximize Efficiency
  • Condensing in DHW Mode
  • 2” Vent available on 110 & 155
  • 3” Vent up to 100’
  • Stainless Steel Fire Tube Heat Exchanger
  • Quick-Dose System Inhibitor/Protector Included
  • Turndown Ratio of 8:1
  • ASME Certified
  • Easy Troubleshooting in Plain Text, No Codes
  • Developed for the USA

Quick Look

Exalt Model Combi 155 Combi 199
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

Additional Products

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