IO Hornet
IO Hornet Overview
The IO Hornet is the smallest cordless ball vape head on the market. A 316L stainless housing holds 100 ruby balls at 2.5mm each, and it heats in a 16mm coil rather than the 20mm or 25mm coils the rest of the category uses. That small thermal mass is the point: the Hornet is built around doses between roughly 0.08g and 0.2g, so it suits microdosing and one-hit sessions rather than passing a bowl around.
Key Features & Benefits of the IO Hornet
Both ends of the head do something. One side carries interchangeable 10mm and 14mm diffusers, which sit inside a conduction bowl for a heavier hybrid hit, and the other carries 14mm and 22mm injectors, which sit on top of a bowl and run as full convection. It fits classic DynaVap tips as well as IO's own bowls and a long list of third party glass, and IO sells collet adapters so a 20mm or 25mm coil you already own can drive it. Reviewers note you need roughly 30°F more on the dial when running one of those larger coils.
What Comes with the IO Hornet?
The $260 IO Hornet Kit is the head and its bowls. A coil, controller and stand are not included:
- IO Hornet head with wooden handle
- 14mm conduction bowl
- 14mm glass stinger
- 14mm glass injector bowl
- Screen former tool
IO also sells a Complete IO Hornet Kit at $435 that adds a Crossing Tech PID and dock, a 25mm axial coil, a 25mm coil adapter, two 18mm to 14mm ground glass joint adapters, a mini scoop and a brush. The glass bowls are handmade, so IO notes that fitment varies slightly between units and handles are picked at random.
If you want a bigger bowl and longer sessions, look at the Ruby Twist Pro or the rest of our best ball vaporizers list.
IO Hornet Pricing & Cost Analysis
Below are approximate prices for the IO Hornet in various different currencies. These numbers are based on the average market rate for the device and are updated as regularly as possible.
$260 USD
€224 EUR
$360 CAD
$444 NZD
£192 GBP| Brand | IO MFG |
|---|---|
| Device Type | Desktop |
| Manufacturer | IO MFG LLC |
| Heating Type | Convection as an injector, hybrid with conduction as a diffuser |
| Chamber Material | 316L stainless steel with a Bocote wood handle |
| Ball Type | 100 x 2.5mm lab grown ruby balls |
| Coil Size | 16mm, with adapters for 20mm and 25mm coils |
| Chamber Capacity | 0.08g to about 0.2g, around 0.15g for a full draw |
| Heat Up Time | 3-5 minutes on a 16mm coil, longer on 20mm and 25mm adapters |
| Temperature Range | 271-338°C (520-640°F) recommended by IO MFG |
| Power Adjustment | Set on a separate PID controller, included only in the Complete Kit |
| Session Style | On-Demand |
| Joint Size | 14mm bowls included, 10mm and 14mm diffusers, 14mm and 22mm injectors |
| Bowl Compatibility | Classic DynaVap tips, IO conduction and glass bowls, many third party 14mm bowls |
| Concentrate Support | Suited to traditional hash, not built for wax or oil |
| Battery Type | None |
| Charging Connector | None |
| Release Date | 2024 |
| Warranty | None, IO MFG sells the Hornet as is with no express or implied warranty |
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Does the IO Hornet Kit include a coil and controller?
No. The $260 kit is the head, three bowls and a screen former. IO sells the Complete IO Hornet Kit at $435, which adds a Crossing Tech PID and dock, a 25mm axial coil and a coil adapter. Existing enail owners can use hardware they already have.
What size coil does it need?
The Hornet is built for a 16mm coil, which is smaller than the 20mm and 25mm coils used by most ball vapes. IO sells collet adapters so a 20mm or 25mm coil will drive it, and reviewers suggest setting roughly 30°F higher when you do.
How much flower does it hold?
Between about 0.08g and 0.2g, with roughly 0.15g giving a full draw. That makes it a microdosing device rather than a session vape, and our microdosing guide covers how to get the most from small loads.
What is the difference between the injector and diffuser ends?
The injector end sits on top of a bowl and pushes superheated air through the flower, which is full convection and the cleaner tasting option. The diffuser end drops inside a conduction bowl and adds contact heat for a heavier, more sedating draw.
Which bowls fit it?
IO includes a 14mm conduction bowl, a 14mm glass stinger and a 14mm glass injector bowl. Reviewers have also run classic DynaVap tips, Lotus water pipe adapters, E-Nano stems and Arizer Argo stems on it.
How long does it take to heat up?
IO MFG quotes three to five minutes on a 16mm coil, and reviewers running larger adapted coils have reported longer. The 16mm coil also has the fastest recovery, with a 20mm adapter a good balance and a 25mm adapter needing slightly higher temperatures and more time between bowls.
What temperature should I set?
IO MFG suggests 520°F to 640°F for dry herb and asks that you burn the head and coil adapter off at 750°F for ten minutes in a ventilated room before the first use. Adjust within that band for flavour or density, as our temperature guide explains.
Can it handle hash?
Yes. Reviewers rate it well for traditional hash and suggest running around 60°F higher than your dry herb setting. It is not designed for wax or oil, so see our guide on vaping concentrates in a dry herb vaporizer before trying.
Do the glass bowls vary?
IO states that the glass bowls are handmade and that slight differences in dimensions and fitment are expected. Handles are also selected at random, so the wood on your unit may not match the photos.
Is there a warranty?
No. IO MFG sells the Hornet as is, with no express or implied warranty, and asks buyers to accept the risks of use. That is worth weighing against Cannabis Hardware and MiniNail, who cover their ball vapes for one and two years respectively.
IO Hornet Alternatives
IO Hornet Cleaning & Maintenance
The Hornet is a small head with a lot of surface area inside it, so residue builds up faster than it does in a large injector. There are only three things to look after: the ruby bed inside the stainless housing, the screens at each end, and whichever bowl you are running. Keeping the screens open matters most, because a 16mm airpath closes up quickly.
Quick Cleaning (After Each Session)
- Park the head on the coil: Set the Hornet back into the coil or on a heat safe surface and let it cool before touching it.
- Empty the bowl warm: Tip the spent flower out while it is still warm so it releases cleanly.
- Brush both ends of the head: A quick pass over the injector and diffuser faces stops ground flower baking onto the screens.
- Wipe the handle joint: Keep the collar between the head and the handle clear so it stays tight.
Deeper Cleaning (Every Few Sessions)
- Cool it completely, then open the head: Remove the screens and tip the 100 ruby balls into a small dish so nothing is lost.
- Soak the rubies in isopropyl alcohol: Around 30 minutes in 90% or stronger alcohol, then a hot water rinse. Ruby is chemically inert and will not be harmed by it.
- Soak the screens and glass bowls: The stinger and injector bowls, the conduction bowl and the screens all take the same soak and rinse.
- Form fresh screens if needed: The included screen former shapes replacement screens to the housing, which is easier than trying to flatten a warped one.
- Dry and refill: Reinstall the rubies and screens only once everything is dry, then heat the empty head on the coil so any residual alcohol clears.
Care Tips for Better Results
- Keep the load small. Packing past about 0.2g restricts airflow and gives a worse draw, not a bigger one.
- Use a medium to fine grind and do not tamp hard. Our grind guide has the detail.
- Give it a minute back on the coil between draws so the ruby bed recovers.
- Handle the head only by its wooden handle. The stainless stays hot long after it leaves the coil.
- If you switch to a 20mm or 25mm coil with an adapter, expect to raise the set temperature by around 30°F to match the same feel.
Learn More About IO Hornet
The Hornet makes most sense for someone who wants ball vape extraction but does not want to load a half gram to get it. Reviewers at 420 VapeZone and Troy and Jerry both describe it as the most efficient ball vape they have used gram for gram, and its 0.15g sweet spot lines up with what people actually want from microdosing or a single strong draw. Because the head takes classic DynaVap tips and a wide range of 14mm bowls, it is also a sensible upgrade path for anyone who already owns glass and has been reading our ball vape guide wondering where to start. Swapping between the injector end and the diffuser end changes the character of the hit without changing anything else.
The obvious limit is capacity. Around 0.2g is the practical ceiling, so it is a poor fit for group sessions or anyone who wants one long unbroken bowl. As a wireless head it also cools during use and needs roughly a minute back on the coil between draws, and the base $260 kit does not include a coil, controller or stand, so budget for the Complete Kit or existing enail hardware. IO quotes three to five minutes to heat up, which is still slow next to a fast heat-up portable. The Hornet is also sold as is with no warranty, and IO currently ships within the United States only.
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