Boiler Maintenance / Inspection SWMS
SWMS template for boiler maintenance / inspection. Covers Drum/tube entry, valve overhaul, refractory.. 8-state AU coverage, CIH-reviewed editable DOCX, available as an instant download.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Boiler maintenance and inspection work involves entry into pressure vessels, overhaul of safety and isolation valves, refractory repair, and inspection of drums, tubes, headers and economisers. This work exposes maintenance personnel to confined space atmospheres, residual high temperatures, stored pressure energy, hazardous chemicals (including boiler water treatment chemicals and refractory dust containing refractory ceramic fibres), and the risk of stored mechanical and electrical energy from auxiliary plant. It is one of the highest-risk maintenance activities undertaken in Australian industrial workplaces.
Under the model Work Health and Safety Act 2011 and the WHS Regulation 2011 (and its 2017/2022 amendments adopted across jurisdictions), a Person Conducting a Business or Undertaking (PCBU) must manage risks associated with confined spaces (Part 4.3), plant (Part 5.1), hazardous chemicals (Part 7.1) and high risk construction work (Part 6.3). Boilers are also classified plant items under Schedule 5 of the Regulation and require design and item registration with the relevant regulator.
A Safe Work Method Statement is legally required before any high risk construction work commences, including work in or near a confined space and work involving pressurised gas distribution mains or piping. Section 299 of the WHS Regulation requires the SWMS to identify the work, the hazards, the control measures and how they will be implemented, monitored and reviewed. This template has been reviewed by a Certified Industrial Hygienist and aligns with the Confined Spaces Code of Practice and AS/NZS 2865:2009.
Hazards identified
6 hazards covered, sorted by priority.
Asphyxiation, loss of consciousness and death within minutes; rescuer fatalities common in unplanned entries
Severe thermal burns, heat stress, heat stroke and collapse inside the confined space
Catastrophic release of steam or hot water causing fatal scalding, projectile injuries and confined space ejection
Carcinogenic exposure (IARC Group 2B), silicosis, chronic respiratory disease; exceedance of WES 0.5 f/mL (RCF) and 0.05 mg/m³ (RCS)
Chemical burns, respiratory tract injury, sensitisation; hydrazine is a suspected human carcinogen
Falls of more than 2 m onto tube banks or grating causing fractures, traumatic brain injury or fatality
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Issue a Confined Space Entry Permit in accordance with AS/NZS 2865:2009 and the model Confined Spaces Code of Practice; permit must specify atmospheric test results, isolation verification, standby person and rescue arrangements before any entry
- 2Apply positive isolation using double block and bleed or spectacle blinds on all steam, feedwater, blowdown, fuel and chemical dosing lines; tag and lock under a documented Lockout/Tagout procedure aligned with AS 4024.1603
- 3Verify cooldown using calibrated surface thermometer — internal surfaces must be below 40°C and ambient inside drum below 35°C before entry; provide forced ventilation (minimum 20 air changes per hour) until and during entry
- 4Continuously monitor atmosphere for O₂ (19.5–23.5%), LEL (<5%), CO (<30 ppm) and H₂S (<10 ppm) using a calibrated 4-gas detector; evacuate immediately on alarm
- 5For refractory work, conduct a hazardous chemical risk assessment under r36; provide P2/P3 respiratory protection (or PAPR for sustained work), disposable Type 5/6 coveralls, and wet-suppression or local exhaust ventilation to keep RCF and RCS below the workplace exposure standard
- 6Establish a non-entry rescue plan with tripod, full-body harness and retrieval winch positioned at the manway; nominate a trained standby person with constant voice or visual contact and dedicated communications
- 7Restrict valve overhaul to competent fitters; depressurise, drain and verify zero energy with a calibrated pressure gauge before breaking containment; use blast mats and exclusion zones when first cracking flanges
- 8Provide fall protection on internal scaffolds compliant with AS/NZS 1576 and AS/NZS 1891 for harness systems; install edge protection on drum manways and elevated platforms
- 9Conduct pre-start toolbox talk and verify boiler is registered plant under Schedule 5 with current inspection certificate; confirm authorised inspector sign-off where required by state regulation
- 10Implement health monitoring under r368 for workers exposed to RCF, crystalline silica and hydrazine; maintain exposure records for 30 years
Applicable Codes of Practice
Mandatory framework for entry permits, atmospheric testing, isolation and rescue applicable to boiler drum and furnace entry
Australian Standard establishing technical requirements for safe entry, atmospheric monitoring and rescue
Applies to boiler water treatment chemicals, descaling acids and refractory ceramic fibres encountered during maintenance
Applies to work on boiler platforms, internal scaffolding and drum manways above 2 m
Sets the inspection regime, intervals and competency requirements for boiler in-service inspection
Governs RPE selection for refractory dust, hydrazine vapour and welding fume exposure
High-Risk Construction Work triggered
Entry into the boiler drum, furnace, economiser or mud drum meets the AS/NZS 2865 and r5 definition of a confined space — enclosed, not designed for human occupancy, and with potential for hazardous atmosphere
Boiler maintenance involves breaking containment on steam, fuel gas and instrument air piping that is part of pressurised distribution systems
Residual heat in refractory and tube banks creates artificial high-temperature conditions that persist for days after shutdown
Because this work is High Risk Construction Work under r291, a SWMS must be prepared before work commences (r299), kept available for inspection (r300), reviewed if controls are revised (r301), and the work must stop immediately if the SWMS is not being followed (r302). Failure to prepare a compliant SWMS is a Category 3 offence under s33 of the WHS Act with maximum penalties of $50,000 for an individual PCBU and $500,000 for a body corporate.
Who this is for
- →Boiler maintenance contractors and pressure vessel service companies
- →In-house maintenance teams at power stations, refineries, food processing, hospitals and pulp/paper mills
- →Refractory installation and repair specialists
- →Authorised pressure equipment inspectors conducting internal surveys under AS 3788
- →Mechanical fitters performing valve overhaul on safety, isolation and blowdown valves
- →WHS managers and HSE advisors responsible for shutdown planning
What you receive
- ✓Editable Microsoft Word (DOCX) SWMS template, fully formatted and ready to populate with site-specific detail
- ✓State-specific legislation schedule covering NSW, VIC, QLD, WA, SA, TAS, ACT and NT WHS Regulations and Codes of Practice
- ✓Pre-populated hazard register with 6 boiler-specific hazards, consequences and priority ratings
- ✓Worker sign-on register with competency verification and SWMS acknowledgement fields
- ✓Confined space entry permit template aligned with AS/NZS 2865:2009
- ✓Isolation and lockout register for steam, feedwater, fuel gas and chemical dosing lines
- ✓Atmospheric monitoring log compatible with 4-gas detector outputs
- ✓CIH-reviewed control hierarchy mapped to the WHS Regulation hierarchy of control (r36)
- ✓Instant download after payment confirmation
Worked example
A maintenance contractor is engaged to perform a 4-yearly internal inspection on a 12 MW natural gas-fired water tube boiler at a regional food processing plant in Victoria. The scope includes drum entry, tube NDT, refractory patching in the furnace floor, and overhaul of two main steam stop valves. The site WHS manager downloads this SWMS, populates the site-specific fields (boiler tag number, isolation points, authorised inspector details), and circulates it for review by the contractor's project supervisor and the plant's authorised pressure equipment inspector. On shutdown day +3, the leading hand fitter uses the SWMS at the pre-start toolbox to walk through each control: he verifies the double-block-and-bleed isolation on the main steam line, confirms the drum internal temperature has dropped to 32°C, witnesses the confined space atmospheric test (O₂ 20.8%, LEL 0%, CO 0 ppm), and signs the entry permit. The standby person is positioned at the manway with the tripod and retrieval winch rigged. When refractory removal begins in the furnace, the SWMS triggers a switch to PAPR respirators and wet suppression, and the supervisor logs the change on the SWMS review page as required by r301.
Related legislation
- Work Health and Safety Act 2011 (Cth model) — sections 19, 33 and 47
- Work Health and Safety Regulation 2011 — Part 4.3 Confined Spaces (r66–r77)
- Work Health and Safety Regulation 2011 — Part 5.1 Plant (r188–r211) and Schedule 5 Registered Plant
- Work Health and Safety Regulation 2011 — Part 6.3 Construction Work (r291–r302)
- Work Health and Safety Regulation 2011 — Part 7.1 Hazardous Chemicals (r328–r378)
- Occupational Health and Safety Regulations 2017 (Vic) — equivalent confined space and plant provisions
- Work Health and Safety Act 2020 (WA) and WHS (General) Regulations 2022 (WA)
- Workplace Exposure Standards for Airborne Contaminants (Safe Work Australia)
Frequently asked questions
Is a boiler always classified as a confined space?
Yes — under regulation 5 of the WHS Regulation and AS/NZS 2865:2009, a boiler drum, furnace, economiser or mud drum is a confined space because it is enclosed or partially enclosed, not designed for continuous human occupancy, has restricted means of entry/exit, and has the potential for a hazardous atmosphere. A confined space entry permit is mandatory.
Does this SWMS cover both fired and unfired pressure vessels?
The template is written for fired boilers (gas, oil, coal and biomass). It can be adapted for unfired pressure vessels such as heat exchangers and air receivers, but you should remove fuel-gas-specific isolation steps and consult AS 3788 for the correct inspection regime for the vessel class.
Do I need a separate SWMS for the refractory work?
No — refractory installation, repair and removal is incorporated into this SWMS as it is integral to boiler maintenance. The hazard register addresses refractory ceramic fibre and crystalline silica exposure, and the controls section specifies wet suppression, RPE selection and health monitoring under r368.
Who is legally required to sign the SWMS?
Every worker who performs the high risk construction work must sign on to acknowledge they have read, understood and will comply with the SWMS. The PCBU (typically the contractor) must also approve the SWMS, and the principal contractor on a construction project must be provided a copy before work starts (r297).
How long do I need to keep the SWMS after the work is finished?
Under r303, a SWMS for HRCW must be kept until the work is completed. If a notifiable incident occurs in connection with the work, the SWMS must be kept for at least 2 years from the date of the incident. We recommend retaining all SWMS records for a minimum of 5 years to align with general WHS record-keeping practice and statutory limitation periods.
Is this template valid in all Australian states and territories?
Yes. The template is written to the model WHS Act and Regulation, with a state-specific legislation schedule covering NSW, QLD, SA, TAS, ACT, NT, WA (WHS Act 2020) and Victoria (OHS Act 2004 and OHS Regulations 2017). The schedule maps each control to the equivalent provision in the relevant jurisdiction.