Uniformat D3020
Boiler, steam
Also called steam boiler
Service life
Years in service. One stated life so far; the band will widen as sources are added.
One source. This value rests on a single document (Energy Conservation Program: Energy Conservation Standards for Commercial Packaged Boilers (final rule), 85 FR 1592, January 10, 2020, p43). Treat it as that source's figure, not a settled life, until others confirm it.
Basis
- 24.8 years · Energy Conservation Program: Energy Conservation Standards for Commercial Packaged Boilers (final rule), 85 FR 1592, January 10, 2020, p43 · IV.F.7 “Lifetime: "a retirement function ... with a resulting mean lifetime of 24.8 years"” — U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (planning life)Printed page 1634. DOE applies one lifetime to every commercial packaged boiler class, which includes hot-water condensing and steam boilers. Not specific to either. Also stated on p.3 (printed 1594).
How sources are chosen and recorded: sourcing policy.
Municipal lives for HVAC (D30)
48 municipalities in Ontario, British Columbia and Alberta state a life for HVAC as a whole, in 39 distinct tables: 10–50 years, median 20. 65 rows come from capital asset policies (accounting lives, used for amortization) and 6 from asset management plans (planning lives, used to forecast replacement). They describe the system rather than this component, and none is a measured life.
Years. Each dot is one stated life and each bar a stated range; equal values stack. Hollow marks are planning lives from asset management plans; filled marks are accounting lives from policies. The dashed line is the median. Policies that copy the same table count once.
All 61 stated lives
| Municipality | As written | Years | Kind | Source |
|---|---|---|---|---|
| Trent Lakes | HVAC systems | 10 | accounting | p10 · 2009 |
| Fort St. James, Revelstoke, Rossland, Sicamous, Tumbler Ridge · same table | HVAC Systems | 10–12 | accounting | p5, p9, p7, p9, p5 · 2010 |
| Okanagan-Similkameen | HVAC Systems | 10–12 | accounting | p11 · 2023 |
| Salmo | HVAC Systems | 10–12 | accounting | p6 · 2016 |
| Duncan, North Cowichan · same table | Building Other (HVAC) | 15 | accounting | p17, p9 · 2011 |
| Lantzville | HVAC | 15 | accounting | p11 · 2019 |
| Grey Highlands | Furnace | 15 | accounting | p11 · 2026 |
| Kapuskasing | HVAC Systems | 15 | accounting | p14 · 2009 |
| Sarnia | HVAC | 15 | accounting | p1 |
| The Blue Mountains | Furnace | 15 | accounting | p11 · 2019 |
| Westlock | HVAC | 15–20 | accounting | p11 · 2021 |
| Meaford | HVAC - Furnace | 15–25 | accounting | p17 · 2020 |
| Lloydminster | Permanent Structures - HVAC | 20 | accounting | p11 · 2023 |
| Lloydminster | Permanent Structures - Mechanical equipment | 20 | accounting | p11 · 2023 |
| Lloydminster | Portable Structures - HVAC | 20 | accounting | p11 · 2023 |
| Lloydminster | Portable Structures - Mechanical equipment | 20 | accounting | p11 · 2023 |
| Comox Valley | HVAC systems, mechanical, plumbing, wiring, etc. | 20 | accounting | p6 · 2010 |
| Cranbrook | HVAC, plumbing, lighting, etc | 20 | accounting | p9 · 2010 |
| Parksville | HVAC | 20 | accounting | p9 · 2023 |
| Telkwa | HVAC Systems | 20 | accounting | p8 |
| Amherstburg | Mechanical/Electrical - HVA, Lighting, Security systems, Electrical Panel | 20 | accounting | p8 · 2026 |
| Amherstburg | Arena - Air Conditioner, Brine Chillers, Compressors, Dehumidifiers | 20 | accounting | p8 · 2026 |
| Chapple | Building Improvements - HVAC Systems | 20 | accounting | p1 |
| Greater Napanee | E20 Mechanical - Boilers, Fire Panel/Alarm, Unit Heaters, HVAC | 20 | accounting | p16 · 2012 |
| Grey Highlands | HVAC | 20 | accounting | p11 · 2026 |
| Huron | Patrol Yards - Building Mechanical | 20 | planning | p42 · 2025 |
| Huron | Property Services - Building Mechanical | 20 | planning | p57 · 2025 |
| Huron | Housing - Building Mechanical | 20 | planning | p68 · 2025 |
| Huron | Homes for the Aged - Mechanical | 20 | planning | p77 · 2025 |
| Kenora | Buildings - Mechanical System | 20 | accounting | p15 · 2026 |
| London | Building Components - Services (HVAC, lighting, communication, plumbing etc.) | 20 | accounting | p2 · 2023 |
| Meaford | HVAC - Air Distribution | 20 | accounting | p17 · 2020 |
| Prince Edward | Buildings - HVAC | 20 | accounting | p34 · 2022 |
| Rainy River | Building Improvements - HVAC Systems/Generator | 20 | accounting | p11 · 2010 |
| Rainy River | Building Improvements - HVAC Systems/Generator | 20 | planning | p17 · 2026 |
| Severn | Building Components - Air Conditioner | 20 | accounting | p400 · 2019 |
| The Blue Mountains | Boiler | 20 | accounting | p11 · 2019 |
| Welland | HVAC/Electrical/Mechanical | 20 | accounting | p8 · 2021 |
| Bancroft, Centre Hastings, Hastings Highlands, Wollaston · same table | HVAC Systems | 20–25 | accounting | p5, p4, p6, p5 |
| Orillia | Facility - HVAC, Boiler | 20–25 | accounting | p19 |
| Vulcan County | HVAC (electrical, mechanical) | 20–30 | accounting | p5 · 2024 |
| Canmore | Mechanical | 25 | accounting | p10 · 2025 |
| Leduc | Mechanical Systems | 25 | accounting | p13 · 2019 |
| Duncan, North Cowichan · same table | Building Other (Electrical, Mechanical, etc.) | 25 | accounting | p17, p9 · 2011 |
| Lantzville | Electrical, Mechanical, Plumbing | 25 | accounting | p11 · 2019 |
| Tofino | Systems - mechanical, electrical, HVAC | 25 | accounting | p12 · 2009 |
| Amherstburg | Arena - Refrigeration Condenser, Scoreboard, Sound System | 25 | accounting | p8 · 2026 |
| Greater Madawaska, Quinte West · same table | HVAC | 25 | accounting | p17, p38 · 2025 |
| Greater Napanee | E25 Plant Mechanical & Electrical | 25 | accounting | p16 · 2012 |
| Grey Highlands | Boiler | 25 | accounting | p11 · 2026 |
| Kingston | Mechanical Equipment | 25 | accounting | p15 · 2016 |
| Kirkland Lake | Buildings and Improvements - Mechanical/Electrical | 25 | accounting | p10 · 2020 |
| Orillia | Arena - Condenser/refrigeration, compressor, HVAC, heating units | 25 | accounting | p19 |
| Severn | Building Components - Furnace/Heating System | 25 | accounting | p400 · 2019 |
| Severn | Building Components - Condenser | 25 | accounting | p400 · 2019 |
| The Blue Mountains | HVAC System | 25 | accounting | p11 · 2019 |
| Brantford | Buildings - Mechanical | 30 | planning | p10 · 2025 |
| Greater Napanee | E30 Chillers, Rink Piping, Fuel Storage Tanks | 30 | accounting | p16 · 2012 |
| Simcoe | Mechanical | 30 | accounting | p19 · 2025 |
| Brockton | Mechanical/Electrical (Heating/Cooling System, Refridgerating System) | 40 | accounting | p2 · 2009 |
| Meaford | HVAC - System | 50 | accounting | p17 · 2020 |
Of 71 rows, 4 were compared with an image of their page; 67 were matched to their page automatically (the label and number appear in the page text). Follow the page link before relying on an automatically matched row. About the policies · All approved rows as JSON
Preventive maintenance
42 tasks in 4 work orders. Intervals that fall due together are one visit: the annual visit also covers the monthly tasks.
- 1Monthly
- 2Monthly
- 3Monthly
- 4Monthly
- 5Monthly
- 6Monthly
- 7Monthly
- 8Monthly
- 9Monthly
- 10Monthly
- 11Monthly
- 12Annual
Months from the schedule start. Daily and weekly rounds run in between. Download the tasks as CSV for a CMMS, or ask the MCP tool get_pm_schedule for dated visits.
Daily · 12 tasks
Source: Operations & Maintenance Best Practices: A Guide to Achieving Operational Efficiency, Release 3.0, 9.2.12 Boiler Checklist
| Task | Page |
|---|---|
| Shut down or re-sequence boilers that are not needed | p150 |
| Do an overall visual inspection: all equipment operating and safety systems in place | p150 |
| Check steam pressure varies as expected with load | p150 |
| Check for unstable water level (sign of contaminated feedwater, overload or malfunction) | p150 |
| Check burner for proper control and cleanliness | p150 |
| Check motor condition: proper function and temperatures | p150 |
| Check boiler room air temperature stays within design limits | p150 |
| Verify bottom, surface and water column blowdowns are happening and effective | p150 |
| Keep daily boiler log: fuel used, flue gas temperature, makeup water, steam output; watch for variations | p151 |
| Check and clean or replace oil filters and strainers | p151 |
| Check oil is at proper temperature before burning | p151 |
| Confirm the boiler water treatment system is working | p151 |
Weekly · 8 tasks
Source: Operations & Maintenance Best Practices: A Guide to Achieving Operational Efficiency, Release 3.0, Boiler Checklist (contd)
| Task | Page |
|---|---|
| Measure flue gas composition and temperature at selected firing positions | p151 |
| Check all relief valves for leaks | p151 |
| Test water level control: stop feedwater pump and confirm burner fuel cuts off | p151 |
| Clean pilot and burner assemblies; look for mineral or corrosion buildup | p151 |
| Stop fuel flow to check flame failure response, restart and observe flame | p151 |
| Inspect system for water or steam leaks, defective valves and traps, corroded piping, insulation | p151 |
| Inspect combustion air damper and fuel valve linkages for setting and tightness | p151 |
| Inspect boiler for air leaks; check damper seals | p151 |
Monthly · 12 tasks
Source: Operations & Maintenance Best Practices: A Guide to Achieving Operational Efficiency, Release 3.0, Boiler Checklist (contd)
| Task | Page |
|---|---|
| Check blowdown is adequate to prevent solids buildup | p151 |
| Measure flue gas composition over the full firing range and compare with last month | p151 |
| Check combustion air openings to boiler room and boiler are adequate and clean | p152 |
| Check fuel system pressure gauge, pumps, filters and transfer lines; clean filters | p152 |
| Check belt tension and packing glands for leakage | p152 |
| Check for air leaks around access openings and flame scanner | p152 |
| Check blower belts for tightness and slippage | p152 |
| Check gaskets seal tightly; replace if not | p152 |
| Inspect boiler insulation and casing for hot spots | p152 |
| Calibrate steam control valves per manufacturer | p152 |
| Check pressure reducing/regulating valves operate properly | p152 |
| Test boiler water quality for chemical balance | p152 |
Annual · 10 tasks
Source: Operations & Maintenance Best Practices: A Guide to Achieving Operational Efficiency, Release 3.0, Boiler Checklist (contd)
| Task | Page |
|---|---|
| Clean water-side surfaces per manufacturer | p152 |
| Clean fire-side surfaces per manufacturer | p152 |
| Inspect and repair fire-side refractories | p152 |
| Remove and recondition or replace relief valve | p152 |
| Clean and recondition feedwater pumps, condensate receivers and deaerator | p152 |
| Clean and recondition fuel system pumps, filters, pilot, oil preheaters, oil tanks | p152 |
| Clean electrical terminals; check electronic controls and replace defective parts | p152 |
| Check and repair hydraulic and pneumatic valves | p152 |
| Adjust for optimal flue gas composition; record composition, firing position, temperature | p152 |
| Eddy current test tubes for wall thickness, as required | p152 |
Frequencies are ISO 8601 durations in the data (P3M = every 3 months).
Open questions
- Every source here is a published planning, design or accounting life. None is observed replacement data.
Know the answer? Send it with a source to [email protected].
Cite this
Citation
unfinished.one (2026). Boiler, steam, v0.3.0. https://unfinished.one/c/boiler-steam/v/0.3.0BibTeX
@misc{unfinished_boiler_steam_0_3_0,
title = {Boiler, steam},
author = {{unfinished.one}},
year = {2026},
version = {0.3.0},
url = {https://unfinished.one/c/boiler-steam/v/0.3.0},
note = {CC BY 4.0}
}Licence CC BY 4.0 · How to cite · JSON · Versions: 0.3.0, 0.2.0, 0.1.0