Furnace Tune-up includes:

Check thermostat operation and wiring

Check system for operation

Inspect filtration system

Inspect blower motor and wheel

Verify blower speed and setting

Check capacitor micro farad reading

Check inducer motor amp draw

Check blower motor amp drawCheck ignition system

Verify gas shutoff operable

Inspect for gas leaks

Verify gas valve operational

Check gas manifold pressure

Inspect and test all internal high limits

Visually inspect all internal wiring

Check or clean burner assembly

Check temperature rise

Check restrictions in duct system

Verify venting intact and meets code

Verify proper combustion air

Inspect electrical circuit (fuse size, dedicated line, etc)

Inspect heat exchanger for areas of concern

Test for carbon monoxide

Check for carbon monoxide detectors

Check for proper and safe operation post inspection

Boiler Tune-up Includes:

Check t-stat operation and wiring

Check system for operation

Check piping for leaks

Inspect pump for leaks

Verify zone valves operational

Check zone control box

Check air elimination

Check expansion tank

Check fill and back flow device

Verify gas shut off operable

Inspect for gas leaks

Verify gas valve operational

Inspect and test all internal high limits 

Visually inspect all internal wiring

Check or clean burner assembly

Check ignition system

Check vent damper operational

Verify venting intact and meets code

Verify proper combustion air

Inspect electrical circuit (fuse, size, dedicted line, etc.)

Inspect heat exchanger for areas of concern

Test for carbon monoxide

Check temperature/pressure gauge operational

Check gas manifold pressure