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Exalt Combi

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Ideal high- efficiency condensing boiler. Combi sizes are available in 155 and 199 MBH for all your home heating and your hot water needs.

Product Comparison

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