Boiler installation Course

Lesson 1 • Core Thermodynamic Principles

Explains heat transfer modes, pressure-temperature relationships, and combustion basics. Provides the physics foundation for all installation and troubleshooting tasks.

Lesson 2 • Boiler Types and Applications

Covers fire-tube, water-tube, and combi boiler designs and their typical use cases. Builds the classification framework used throughout the course.

Lesson 3 • Boiler Components and Functions

Identifies primary components including heat exchangers, burners, and controls. Connects component function to system performance and safety.

Lesson 4 • Fuel Types and Energy Sources

Compares natural gas, propane, oil, and electric boiler energy sources. Informs fuel-specific installation requirements covered in later chapters.

Lesson 1 • Reading Technical Drawings and Schematics

Develops ability to interpret manufacturer installation drawings and system schematics. Accurate drawing interpretation is essential for correct component placement.

Lesson 2 • Pipework Materials and Fittings

Examines copper, steel, and plastic pipe systems along with compatible fittings. Material choice affects corrosion resistance, pressure rating, and installation method.

Lesson 3 • Hand and Power Tools for Installation

Covers pipe cutters, press tools, torque wrenches, and drilling equipment. Correct tool selection prevents damage and ensures code-compliant joints.

Lesson 4 • Personal Protective Equipment and Site Safety

Specifies PPE requirements and site hazard controls for boiler installation environments. Safe site practices are mandatory before any physical work begins.

Lesson 1 • Pressure Testing and Tightness Checks

Teaches standing pressure tests and let-by tests using gauges and manometers. Documented tightness testing is a mandatory pre-commissioning requirement.

Lesson 2 • Gas Pipework Installation Techniques

Covers jointing methods, support spacing, and routing requirements for gas pipework. Correct installation technique is the primary defence against gas leaks.

Lesson 3 • Pipe Sizing and Flow Calculations

Applies load calculations and pressure drop formulas to select correct pipe diameters. Undersized pipework causes boiler lockout and unsafe operation.

Lesson 4 • Gas Safety Devices and Controls

Identifies flame supervision devices, gas valves, and interlock systems. These devices prevent uncontrolled gas release and are required by safety standards.

Lesson 1 • Flue Installation Procedures

Details step-by-step assembly, sealing, and support of flue components. Proper assembly prevents flue gas leakage and structural failure over time.

Lesson 2 • Flue Types and Materials

Compares single-wall, twin-wall, and concentric flue systems and their material ratings. Material and configuration selection must match appliance type and installation location.

Lesson 3 • Flue Performance Testing

Conducts spillage tests, draft measurements, and CO checks to verify flue integrity. Performance testing confirms safe operation before handover to the customer.

Lesson 4 • Combustion Air Requirements

Calculates air supply volumes needed for complete combustion and safe operation. Insufficient combustion air produces carbon monoxide and reduces efficiency.

Lesson 1 • Heating System Configurations

Compares one-pipe, two-pipe, and underfloor heating layouts and their hydraulic behaviour. Configuration choice determines balancing strategy and zone control options.

Lesson 2 • Pipework Sizing for Heating Circuits

Applies heat load calculations and velocity limits to size heating pipework correctly. Oversized or undersized pipes cause noise, poor balance, and energy waste.

Lesson 3 • Radiator and Emitter Installation

Covers bracket mounting, valve fitting, and air venting for radiators and fan coil units. Correct emitter installation ensures rated output and prevents air locks.

Lesson 4 • System Flushing and Chemical Treatment

Executes power flushing and inhibitor dosing to remove debris and prevent corrosion. Clean system water is a prerequisite for efficient heat transfer and warranty compliance.

Lesson 1 • Condensate Disposal Systems

Routes condensate drain to approved disposal points with correct fall and frost protection. Blocked condensate pipes are the most common cause of boiler lockout in cold weather.

Lesson 2 • Domestic Hot Water Connections

Installs cold water inlet, hot water outlet, and pressure-reducing valve for DHW circuits. Correct DHW connection ensures safe water pressure and scalding prevention.

Lesson 3 • Boiler Positioning and Mounting

Applies manufacturer clearance requirements and structural load limits to position and fix the boiler. Incorrect mounting causes vibration damage and access problems.

Lesson 4 • Expansion Vessel Sizing and Setup

Calculates expansion vessel volume and sets pre-charge pressure for sealed systems. Correct setup prevents pressure relief valve discharge and system damage.

Lesson 1 • Thermostat and Programmer Installation

Installs room thermostats, programmers, and cylinder stats to achieve scheduled heating control. Correct placement and wiring maximise comfort and energy efficiency.

Lesson 2 • Zone Valve and Pump Wiring

Wires motorised zone valves, circulator pumps, and their end-switch connections. Correct wiring ensures zone valves open before the pump starts, preventing damage.

Lesson 3 • Smart Controls and System Integration

Configures smart thermostats, weather compensation, and load compensation controls. Advanced controls reduce energy consumption and are increasingly required by efficiency standards.

Lesson 4 • Boiler Wiring Fundamentals

Interprets manufacturer wiring diagrams and connects live, neutral, and earth conductors correctly. Correct wiring prevents control faults, electric shock, and fire risk.

Lesson 1 • Initial Boiler Startup Procedure

Follows manufacturer startup sequence including purging, ignition, and fault code monitoring. Correct startup prevents component damage and validates installation quality.

Lesson 2 • Pre-Commissioning Checks

Verifies mechanical, gas, flue, and electrical installations before first ignition. Systematic pre-commissioning prevents damage and ensures safe initial startup.

Lesson 3 • Combustion Analysis and Adjustment

Uses a calibrated combustion analyser to measure CO, CO2, and flue gas temperature. Combustion analysis confirms safe and efficient burner operation at commissioning.

Lesson 4 • System Balancing and Performance Verification

Balances radiator circuits, sets pump speed, and verifies flow temperatures against design. A balanced system delivers rated output and prevents noise and hot or cold spots.