Unilux Boilers
W Series
Hot Water Boilers
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Unilux boilers are the first and only 5-pass, bent-tube boilers that operate at 85% efficiency, standard. The tangent tube design allows unsurpassed convective internal pumping and maximum heat transfer. The standard design pressure is 160 psi / ASME Section IV, with higher pressures available.
- Flexible burner selection
- Useable heated water in under 15 minutes
- Easy access to boiler controls for safety and serviceability
- Easy fireside access for inspection and service
- Available as field-erect (FE) units that don’t require on-site welding (ASME Section I and IV)
- Industrial-grade materials throughout
- 25-year standard warranty against thermal shock damage
Unilux boilers have the greatest size range of standard products available in this design and can be used wherever heated water is required.
LS Series
Low Pressure Steam Boilers
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Unilux boilers are the first and only 5-pass, bent-tube boilers that operate at 85% efficiency, standard. The tangent tube design allows unsurpassed convective internal pumping and maximum heat transfer. The standard design pressure is 160 psi / ASME Section IV, with higher pressures available.
- Flexible burner selection
- Easy access to boiler controls for safety and serviceability
- Easy fireside access for inspection and service
- Available as field-erect (FE) units that don’t require on-site welding (ASME Section I and IV)
- Industrial-grade materials throughout
- 25-year standard warranty against thermal shock damage
HS Series
High Pressure Steam Boilers
For More Information:

Unilux boilers are the first and only 5-pass, bent-tube boilers that operate at 85% efficiency, standard. The tangent tube design allows unsurpassed convective internal pumping and maximum heat transfer. The standard design pressure is 160 psi / ASME Section IV, with higher pressures available.
- Flexible burner selection
- Easy access to boiler controls for safety and serviceability
- Easy fireside access for inspection and service
- Available as field-erect (FE) units that don’t require on-site welding (ASME Section I and IV)
- Industrial-grade materials throughout
- 25-year standard warranty against thermal shock damage