EX 700

High Efficiency Commercial Fire Tube Boiler

The Superior heating solution, perfect for all large new and retrofit projects.

Touchscreen controller.
97% AFUE Thermal Efficiency
Built In 4 Zone Pump Control
10:1 turndown ratio
Network up to 24
Control on the go with the V10 PORTAL
SPECIFICATIONSEX 700EX 850
CSA Input (Natural Gas or Propane) – MBH70 – 70085 – 850
CSA Input (Natural Gas or Propane) – kW20.5 – 20524.9 – 249
CSA Output (Natural Gas or Propane) – MBH679824.5
CSA Output (Natural Gas or Propane) – kW199241.6
Thermal Efficiency97%97%
Min Gas Supply Pressure (Nat. Gas or Propane) – inch w.c.44
Max Gas Supply Pressure (Nat. Gas or Propane) – inch w.c.1414
Ambient Temperature – Low32°F / 0°C32°F / 0°C
Ambient Temperature – High122°F / 50°C122°F / 50°C
Max relative humidity (non-condensing)90%90%
Min water Temperature34°F / 1°C34°F / 1°C
Max water Temperature – (electronic high limit)190°F / 88°C190°F / 88°C
Max. ∆T – supply/return (electronic fence)80°F80°F
Max. Water Temperature Lockout Limit201°F / 94°C201°F / 94°C
Power (120Vac/60Hz) @ full fire – watts (without pumps)2.52.5
Weight (empty) – lbs/Kg300 / 136300 / 136
Heating Surface Area ft² / m²84.6 / 7.8699.88 / 9.28
Pressure Vessel water content – USG/Liters17.516.4
Max boiler flow rate – USgpm100100
Min boiler flow rate to activate DHW heating – USgpm1821
Max Operating Water Pressure – psig160160
Min Operating Water Pressure – psig88
Relief valve pressure – psig5050
Approved installation altitude12,000 ft12,000 ft
Max equivalent vent length (each side)120’120’
CONNECTIONS  EX 700/800
Flue Outlet 6” Schedule 40
Combustion Air Inlet 4” Schedule 40
Water Outlet 2 1/2” Male NPT
Water Intlet 2 1/2” Male NPT
Knockouts (8) 1/2”
Gas inlet 1” NPT-F
Condensate Outlet 3/4” Hose