For those wanting to quit smoking and would like to try vaping as a healthier alternative, here is some of the hardware I recommend after much experimentation and trial and error.
First, you will need a handheld power supply, which is called a "mod" in the vaping world.
It contains the electronics, LCD screen and allows various adjustments to temperature, volts, ohm and wattage settings.
One with a 2000 mAh rechargeable inbuilt battery will allow a full day's vaping before needing to be recharged with the included wall charger.
Your "tanks" which hold the e-liquid and heating coil fits on top.
A good mod range is one that allows wattages up to around 75 watts to suit beginners all the way to seasoned vapers.
This is one I use and recommend and fits comfortably in the hand.
The Innokin Kroma 75W which retails for around $70.
A very good starter mod which is very compact and easier to fit in trouser pockets is the Soulblu Speedy 50W Mod Box.
This has a Built-in 1500mAh battery, and measures just 34 x 24 x 65mm.
They cost around $50.
I have a couple of these....
Next, you will need a "tank" which holds your e-liquid.
There are many to choose from, the key is finding one that won't leak, has good adjustable airflow, has a ready supply of spare parts such as the consumable heating coils, and gives consistent results.
Having a few tanks, allows you to have different flavours of e-liquid in each.
In one I might have Coca-Cola flavour, another Green Apple and another with Spearmint flavouring.
My main tank is the Aspire Nautilus tank, made from Pyrex glass and holds 5ml of e-liquid, which I use on the Innokin Kroma mod.
They fully disassemble to allow for proper cleaning.
Cost is around $29
I then use a couple of the smaller Aspire tanks, which hold about 2 ml of e-liquid, and cost around $26.
These are used with the smaller compact Soulblu Speedy 50W Mod Box.
Lastly, you will need some spare heating coils, which screw into the tanks and vapourise your e-liquid.
These are consumable items and usually last for 2 - 3 weeks (depending on the wattage you use). Cost is around $6 each.
I recommend the BVC 1.8 Ohm coils also made by Aspire...