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15 Free Checklists

Heating & Hot Water Maintenance Checklist

Free heating and hot water maintenance checklists for boilers, air and ground source heat pumps, calorifiers, plate heat exchangers, thermal stores, underfloor heating, and more. Each includes preventive tasks, service frequencies, common faults, and safety notes.

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Heating maintenance checklist template listing boiler pressure checks, flue inspections, safety valve tests and water treatment analysis with frequencies
A preview of the heating maintenance checklist format — choose the checklist for your specific heating plant below.

Heating maintenance covers combustion and flue checks on fired plant, refrigerant and F-Gas checks on heat pumps, water quality and pressurisation, safety devices and controls, and hot water storage and legionella considerations. Choose the checklist for your specific plant below.

Heating & Hot Water

Commercial Boiler Maintenance Checklist

18 tasks · Free PDF

Plate Heat Exchanger Maintenance Checklist

10 tasks · Free PDF

Calorifier (Hot Water Storage Vessel) Maintenance Checklist

11 tasks · Free PDF

Thermal Store Maintenance Checklist

9 tasks · Free PDF

Air Source Heat Pump (ASHP) Maintenance Checklist

11 tasks · Free PDF

Ground Source Heat Pump (GSHP) Maintenance Checklist

10 tasks · Free PDF

Electric Boiler Maintenance Checklist

10 tasks · Free PDF

Biomass Boiler Maintenance Checklist

10 tasks · Free PDF

Steam Boiler Maintenance Checklist

10 tasks · Free PDF

Underfloor Heating System Maintenance Checklist

10 tasks · Free PDF

Flue & Chimney System Maintenance Checklist

10 tasks · Free PDF

Pressure Vessel Maintenance Checklist

12 tasks · Free PDF

Steam Trap Maintenance Checklist

12 tasks · Free PDF

Heat Interface Unit Maintenance Checklist

12 tasks · Free PDF

Oil Storage Tank Maintenance Checklist

12 tasks · Free PDF

Other maintenance checklist categories

HVAC maintenance checklists — Air handling units, fan coils, chillers, VRF, ductwork and extract systems — filters, coils, refrigerant and damper checks.
plumbing and water system maintenance checklists — Pressurisation units, booster sets, storage tanks, TMVs and water treatment — pressure, hygiene and legionella control.
electrical maintenance checklists — Distribution boards, switchgear, generators, UPS, solar PV and EV charging — inspection, testing and thermographic checks.
fire safety maintenance checklists — Fire dampers, alarms, emergency lighting, sprinklers, risers and fire doors — the statutory checks and their records.
BMS and controls maintenance checklists — BMS panels and head-ends, DDC controllers, inverters, sensors and actuators — calibration, overrides and strategy backups.
metering maintenance checklists — Energy, heat, water and gas meters — read integrity, accuracy checks and the data quality behind aM&T reporting.
lift maintenance checklists — Passenger, goods and platform lifts and escalators — LOLER thorough examination, entrapment release and door safety.
All maintenance checklists·preventive maintenance checklist·building maintenance checklist·Statutory inspection checklists·Free checklist templates·Compliance and FM topics

Annual servicing is the floor, not the whole job

Fired plant gets an annual combustion service as a minimum — flue gas analysis, burner and heat exchanger inspection, safety device tests — carried out by Gas Safe registered engineers on gas plant. But most heating breakdowns trace back to what happens between services: system pressure drifting as a pressurisation unit loses its cushion, dirt and magnetite accumulating because the water treatment lapsed, or a low-loss header running blended because a pump failed unnoticed. Monthly plant-room walk-rounds that log pressures, temperatures, and pump duty status catch these early.

System water quality deserves particular attention on modern plant: condensing boilers, heat pumps, and plate heat exchangers all tolerate dirty water poorly. An annual water sample against BSRIA BG 50 / VDI 2035 guidance, with inhibitor top-up or side-stream filtration where needed, protects the most expensive components in the system.

Hot water, legionella, and pressure systems

Where the heating plant also generates domestic hot water, the maintenance schedule inherits legionella duties under ACoP L8: calorifiers stored at 60°C and inspected annually, outlet temperatures monitored monthly, and TMVs serviced so scald protection doesn't come at the cost of hygiene. Unvented cylinders and other pressure vessels may also fall under the Pressure Systems Safety Regulations, requiring a written scheme of examination and periodic inspection.

Heat pumps add the F-Gas dimension — leak checks scheduled by refrigerant charge, records retained for five years — and reward attention to flow temperatures: every degree the system can run cooler improves the coefficient of performance, so controls optimisation belongs on the checklist, not just mechanical checks.

Frequently asked questions

What should a heating maintenance checklist include?
It should cover the heat source (boiler combustion and flue, or heat pump refrigerant and coils), system water quality and pressurisation, safety devices and controls, hot water storage temperatures and legionella considerations, and flow-temperature optimisation for efficiency. The specific tasks depend on the plant — boilers, heat pumps, calorifiers, and underfloor heating each have their own checklist.
How often should heating plant be serviced?
Boilers and heat pumps are typically serviced annually, with more frequent checks on critical or hard-working plant. Heat pumps also need F-Gas leak checks based on refrigerant charge, and hot water systems need regular temperature monitoring for legionella control. Flues serving combustion plant are inspected annually and swept as needed.
Do heat pumps need different maintenance from boilers?
Yes. Heat pumps have a refrigerant circuit that falls under the F-Gas Regulations, requiring leak checks, and their efficiency depends heavily on clean coils, correct defrost operation, and low flow temperatures. Boilers focus on combustion, flue, and heat exchanger condition. Each has its own dedicated checklist reflecting these differences.

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