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Houseneeds.com    Home / All Hydronic Boilers / Gas Boilers / Electric Boilers / Oil Boilers / Embassy Onex Gas Boilers / Buy
Embassy Ambassador Onex Condensing Boiler
Onex Combi Boilers and Heat Only Boilers for space heating and domestic on demand hot water

Embassy Ambassador Onex combination boiler for space heating and domestic hot water
Embassy Onex Gas Boilers

The ONEX Condensing Boiler OX-160C is the latest addition to the Ambassador line of wall hung combination boilers. It uses premix burner technology for combustion that is installed in a radial oriented 316L stainless steel heat exchanger. The patented pre-mix air/gas modulation system, domestic hot water heat exchanger, and electronic controls makes the ONEX condensing boiler at the top for performance. High safety ratings and low emissions make the Onex combi boiler environmentally friendly too. The ONEX Gas Boiler OX-160B is the same great boiler as the OX-160C but for heat only.

The Embassy Onex Condensing Boiler can achieve up to 98% efficiency depending on how you configure your heating system.
Returning water temperature below 130 degrees creates the higher efficiencies (lower temperature ensures maximum condensation and thermal efficiency). Returning water temperature above 135 degrees will give efficiencies between 87% and 89% (this is true with all condensing boilers).

The Embassy Onex Condensing Boiler includes: panel mounted controls, mounted and wired circulator and expansion tank that are all built into an attractive sound attenuated enclosure. The layout of components makes installation, maintenance and service easy. All utility connections for gas, water and condensate are conveniently located at the bottom of the unit.


ONEX Gas Condensing Boiler Models:

ONEX OX-160C - With domestic water (Combintation Boiler) - Prices - Specs - Techs

ONEX OX-160B - Heat Only - Prices - Specs - Techs

ONEX Gas Condensing Boiler OX-160C Features:
  • With On-Demand Hot Water - Combi
  • Patented ASME heat exchanger
  • 316L stainless steel tubes
  • Premix burner
  • 30,000 to 160,000 btuh
  • Environmentally-friendly - NOx 15 p.p.m.
  • Certified DOE efficiency of 93% and up to 98% Efficency
  • Continuous 5 to 1 modulation
  • Coil-type potable domestic hot water supply
  • Intergal system circulator
  • Expansion tank and air vent
  • Natural gas with LP (propane) conversion kit available
  • Sidewall vent kit included
  • Cannot be vented with PVC or CPVC

ONEX Gas Condensing Boiler OX-160B Features:
  • Heat Only
  • Patented ASME heat exchanger
  • 316L stainless steel tubes
  • Premix burner
  • 30,000 to 160,000 btuh
  • Environmentally-friendly - NOx 15 p.p.m.
  • Certified DOE efficiency of 93% and up to 98% Efficency
  • Continuous 5 to 1 modulation
  • Natural gas with LP (propane) conversion kit available
  • Sidewall vent kit included
  • Cannot be vented with PVC or CPVC

ONEX Gas Condensing Boiler OX-160B Schematic:
Inside look of Embassy Onex Condensing Boilers OX-160C
Embassy Ambassador Onex Combi Boiler OX-160C Operating Schematic
Embassy Ambassador Onex Combi Boiler OX-160C Operating Schematic
  • 1=Flue exhaust
  • 2=Air intake
  • 3=sealing chamber
  • 4=heating supply manifold
  • 5=Heating return manifold
  • 6=Environmentally friendly, premix burner
  • 7=Air intake
  • 8=Circulator pump
  • 9=Condensate siphon
  • 10=Fan
  • 11=Pneumatic gas valve
  • 12=Three way valve
  • 13=DHW heat exchanger
  • 14=Heating supply
  • 15=Domestic hot water
  • 16=Gas inlet
  • 17=Domestic cold water
  • 18=Condensate discharge
  • 19=Heating return

Search by Boiler Type:


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Condensing Boilers: view all Condensing Gas Boilers & Condensing Propane Boilers

Non Condensing Boilers: view all Non Condensing Gas Hot Water Boilers

Oil Fired Boilers: view all Oil Heating Boilers & Oil Boiler

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Embassy Ambassador ONEX Boiler Venting

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Efficiency Comparison of Different Heat Sources

Custom Heating Packages

HVAC-Calc
Easy to use heat loss/heat gain software



This is an Energy Star product. The Energy Star program, managed by the Environmental Protection Agency and the Department of Energy, helps consumers identify energy-efficient products for their homes.


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Air Hanlders (Turn your boiler into a Hot Air Furnace)


Smith Environmental Products Hydronic Baseboards
Hydronic Baseboard Convectors


Boiler Treatments to keep your boiler and piping clean and efficient - required for many hot water boilers
Boiler Treatments




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