EXW Series Hot-Water Boilers

Multiple water tube, Hot-water boiler. Miura’s Gas/Oil hot-water boiler is a low water content, water tube design, which provides full output within 5 minutes.

  • Gas/Oil dual fuel burner
  • Up to 300 BHP per boiler
EXW-300 GO
Boiler Type Natural Gas, Propane, or #2 Oil Fired
Utilization Horsepower 300 BHP
Maximum Pressure 160 PSIG
Heat Output 10,050,000 BTU/HR
Efficiency[1] 80% Gas / 82% Oil
Heating Surface Area

390 FT²

Operational Weight 14,200 LBS
Shipping Weight 12,900 LBS
Dimensions Given are Approximate
Width 90 in.
Length 103 in.
Height 138 in.
Combustion System Proprietary Forced Draft
Ignition System

Electric Spark Ignited, Interrupted Gas Pilot

Power Supply 230, 460, or 575 V, 3 PHASE, 60 HZ
Max. Electrical Consumption 34 KVA
Fuel Type[2] Natural Gas or Propane (3-5 PSIG) or No. 2 Oil
Gas Consumption[3] 12,562 SCFH
Gas Supply Pressure

3-5 PSIG Natural Gas or Propane

Main Water Outlet 8 in.
Safety Valve Outlet 2 ½ in.
Main Water Inlet 8 in.
Fuel Gas Inlet 2 ½ in.
Manual Blowdown 1 in.
Chimney Diameter (ID) 26 in.
Flame Detector Ultraviolet Flame Eye Sensor
Overheat Protection Low Water Cut Off & Flow Switch
Max. Water Temperature 250°F
Full Water Content 148 GAL
Temperature Control Adjustable Temperature Controllers
No. 2 Oil 87.5 GAL/HR
Fuel Oil Inlet 1 in.
  1. Thermal efficiencies are based on high heating values of fuels at 140°F supply temperature water.
  2. UL and c-UL approved for natural gas and propane.
  3. Gas consumption based on natural gas with high heating value of 1004 BTU/SCF.
All MIURA hot water boilers are fully packaged and test fired at the factory.

Built to meet or exceed UL and ASME standards in U.S.A.; c-UL and B-51 standards in Canada.