1. Multipurpose screwdriver
   Flat nose pliers
2. Hammer
   Flashlight

Either use a multipurpose screwdriver with various detachable heads or a selection of screwdrivers such as a flathead and Phillips. These are used every day in the HVAC environment.

1. Multipurpose screwdriver
   Flat nose pliers
2. Hammer
   Flashlight

A range of pliers are important in HVAC work, including the flat nose.

1. Multipurpose screwdriver
   Flat nose pliers
2. Hammer
   Flashlight

Sometimes things need to be hit. That's where a hammer comes in useful. As an example, a tight bolt might need a friendly tap to loosen it.

1. Multipurpose screwdriver
   Flat nose pliers
2. Hammer
   Flashlight

A flashlight is perfect for those dark places where equipment is stored.

1. Cordless drill
   Flashlight
2. Flat nose pliers
   Multipurpose screwdriver

Often, no power points are available when working on HVAC units. Cordless drills are therefore, a must!

1. Hammer
   Cordless drill
2. Flat nose pliers
   Heavy duty sprayer

Refrigeration units, air conditioners and other HVAC components are often dusty, especially if they are older units. Sometimes they need a good clean before they are worked on. A heavy-duty sprayer is the best way to do this.

1. Flashlight
   Thick gloves
2. Heavy duty sprayer
   Multipurpose screwdriver

To protect your hands, a pair of thick gloves should always be in a HVAC technician's toolbox.

1. Stepladder
   Cordless drill
2. Heavy duty sprayer
   Thick gloves

The perfect way to get to higher places, a stepladder is easily transported as well.

1. Cordless drill
   Multipurpose screwdriver
2. Stepladder
   Wire strippers

Does exactly what it says on the box, strips wires as needed. Don't buy cheap. You want wire strippers that will do the job the first time!

1. Heavy-duty tape measure
   Wire strippers
2. Screwdriver
   Flat nose pliers

A tape measure of around 50 feet is a toolbox essential in the HVAC world. You will be measuring often.

1. Flashlight
   Cordless drill
2. Crescent wrench
   Thick gloves

A range of different-sized crescent wrenches are always handy to have in any toolbox and in an HVAC environment as well.

1. Crescent wrench
   Socket
2. Screwdriver
   Allen key set

Never leave home without them! Many manufacturers use bolts with Allen key heads, so having a range of sizes is a great idea as well. Having a metric and standard set is what you should aim for.

1. Allen key set
   Metal cutters
2. Flashlight
   Flat-nose pliers

While working in an HVAC environment, cutting metal is a daily requirement. A sharp pair of metal cutters will get the job done.

1. Metal cutters
   Two-way radio
2. Multi-meter
   Altimeter

A top of the range multi-meter can test a/c and d/c voltage, amps, temperature, and micro-farads. It is a must for your toolbox.

1. Drill bits
   Multi-meter
2. Screws
   Nails

Having a range of drill bits means never getting frustrated when holes are needed. Nothing is more frustrating than not having the necessary bit.

1. Drill bits
   Heavy duty sprayer
2. Tape measure
   Coil fin straightener

This is used to help straighten bent fins on an air-conditioning unit. Of course, if they are bent too much, they will need to be replaced.

1. Multi-tool
   Digital thermometer
2. Coil fin straightener
   Multi-meter

These can be left in supply or return vents while working on the HVAC system to make it easier to monitor temperatures.

1. Phillips screwdriver
   Digital thermometer
2. Flat nose pliers
   Multi-tool

A multi-tool can come in very useful in many situations. No self-respecting HVAC technician would be without one on their belt.

1. Cordless drill
   Multi-tool
2. Scissors
   Sawzall

For when sawing is the only option, a Sawzall can cut through just about anything.

1. Stepladder
   Sawzall
2. Safety glasses
   Digital thermometer

To protect your eyes, a pair of safety glasses should always be in a HVAC technician's toolbox.

1. Vacuum pump
   Safety glasses
2. Sawzall
   Thick gloves

Although it can be costly, a vacuum pump is a great addition to any HVAC toolbox. It helps to remove any excess water and water vapor in an air conditioning system, for instance.

1. Tape measure
   Vacuum pump
2. Wire strippers
   Needle nose pliers

A range of pliers are important in HVAC work including the needle nose.

1. Temperature clamp
   Needle nose pliers
2. Cordless drill
   Multitool

A temperature clamp can plug into a multi-meter and is used to tell the temperature at a certain point in the HVAC system.

1. Temperature clamp
   Gloves
2. PVC cutter
   Side cutters

PVC cutters are the perfect tool to cut PVC piping.

1. PVC cutters
   Vacuum pump
2. Multi-meter
   Infrared digital thermometer

An infra-red digital thermometer is perfect to take accurate readings to check for motors, breakers or other parts of an HVAC system that is overheating.

1. Infrared digital thermometer
   Side snips
2. Flatnosed pliers
   Scissors

Side snips can be used to cut PVC piping, wires, thin pieces of metal. They are invaluable in the HVAC environment.

1. Side snips
   Refrigeration gauges
2. Heavy duty sprayer
   Multi-meter

An important part of an HVAC technician's toolbox, refrigeration gauges can read the different pressures of gases in air conditioning or cooling systems.

1. Cordless drill
   Tube of glue
2. Refrigeration gauges
   Caulking gun

A caulking gun is used to seal piping, among other handy applications.

1. Infrared digital thermometer
   Caulking gun
2. Micron gauge
   Refrigeration gauges

Need to measure the strength of a vacuum in an HVAC system? Then a micron gauge is the perfect gadget.

1. Core removal tool
   Micron gauge
2. Sawzall
   Stepladder

A core removal tool is used to remove restrictive access valves in HVAC systems.

1. Flashlight
   Core removal tool
2. Extension cord
   Cordless drill

Sometimes power outlets are not easily to come by where HVAC systems are found. That's where an extension lead comes in handy.

1. Extension cord
   Allen key set
   Crescent wrench
2. Heavy-duty scissors
   Side cutters

A pair of heavy duty scissors is perfect for cutting thin PVC piping among other things.

1. Tubing cutter
   Drill bits
2. Core removal tool
   Heavy duty sprayer

Tubing cutters do what they say, cut tubing ... a daily requirement in the HVAC world.

1. Wet/Dry vacuum cleaner
   Heavy duty sprayer
2. Tubing cutters
   Refrigeration gauges

The easiest way to clear a clogged drain line in an HVAC system is by simply using a wet/dry vacuum cleaner.

1. Extension cord
   Leak detector
2. Wet/Dry vacuum cleaner
   Safety glasses

Although sometimes leaks are obvious to find, when they are small, a leak detector will locate them in next to no time.

1. Leak detector
   Heavy duty gloves
2. Safety glasses
   Ear muffs

HVAC systems can be noisy. To protect their ears, HVAC technicials should keep a pair of ear muffs handy.

1. Ear muffs
   Pipe wrench
2. Flat nosed screwdriver
   Hammer

No toolbox is complete without a pipe wrench, especially one belonging to a HVAC technician.

1. Steel-toed boots
   Safety glasses
2. Pipe wrench
   Ear muffs

HVAC equipment is heavy, and technicians should wear steel-toed boots to protect their feet when carrying parts or air conditioning units.

1. Manifold gauges
   Micron guage
2. Temperature gauge
   Steel-tipped boots

A manifold gauge is a must in an HVAC toolbox. It can help to determine if leaks are present in a system

1. Heavy duty sprayer
   Welding torch
2. Glue gun
   Manifold gauge

With a welding torch, pieces of metal can be fused together. Not a necessary tool but a great one to have.