Vape Systems: Open vs Closed
Closed vs Open Vaping Systems – Technical Guide (Ireland)
Technical Review: This article was originally published under early system-classification content and was fully updated in February 2026 to reflect current device architectures, Irish regulatory changes, and post-disposable market conditions.
Closed and Open Vaping Systems in Ireland (2026 Context)
By 2026, the distinction between closed and open vaping systems has become a structural decision rather than a lifestyle preference. Following the Public Health (Single Use Vapes) Bill in Ireland, users transitioning away from disposable products must choose between these two system architectures, each defined by different approaches to liquid handling, maintenance, cost efficiency, and environmental impact.
Definition
Closed and open vaping systems describe two architectural approaches to aerosol delivery: closed systems rely on pre-filled, sealed cartridges, while open systems allow users to refill pods or tanks with bottled e-liquid.
Key takeaways
- Closed systems prioritise simplicity and consistency with minimal user interaction.
- Open systems prioritise cost-per-ml efficiency, flexibility, and reduced long-term waste.
- Irish excise duty makes liquid economics a primary selection factor.
- Modern open systems mitigate complexity through regulated chipsets and smart power control.
- Environmental and WEEE considerations increasingly influence system choice in 2026.
System Architecture Overview
| System type | Liquid handling | User interaction model |
|---|---|---|
| Closed systems | Pre-filled pods or cartridges | Replace cartridge when depleted |
| Open systems | Refillable pods or tanks | Manual refill with bottled e-liquid |
Economic Considerations Under Irish Excise Rules
The introduction of per-millilitre excise duty on e-liquids fundamentally changed operating economics. Closed systems embed excise and packaging costs into each cartridge, while open systems distribute excise across larger refill volumes, reducing average cost-per-ml over time.
| Aspect | Closed system | Open system |
|---|---|---|
| Cost per millilitre | Higher due to unitised packaging | Lower when refilling from bottled liquid |
| Excise efficiency | Fixed per cartridge | Optimised across refill volume |
| Long-term operating cost | Predictable but higher | Lower, user-dependent |
Maintenance Level and Modern Chipset Support
Historically, open systems were perceived as technically demanding. In 2026, this distinction has narrowed. Many refillable platforms now use regulated chipsets with smart wattage adjustment and coil-recognition logic, automatically aligning power output to the installed coil and reducing setup complexity.
- Closed systems: Minimal maintenance, cartridge replacement only.
- Open systems: Refill management, periodic coil replacement, supported by automatic power calibration.
Environmental Profile and WEEE Considerations
Environmental impact is increasingly evaluated through the lens of WEEE (Waste Electrical and Electronic Equipment) management. Closed systems typically replace integrated coil-pod units as a single component, contributing proportionally more electronic waste per millilitre consumed.
Open systems, by contrast, separate liquid consumption from hardware replacement, allowing tanks or pods to be reused while only coils are replaced, reducing overall WEEE volume across the device lifecycle.
User Profiles and System Alignment
| User profile | Recommended system | Rationale |
|---|---|---|
| Convenience-focused user | Closed | Low interaction, consistent operation |
| Cost-optimised user | Open | Lower cost per ml under excise rules |
| Long-term system user | Open | Reduced waste, greater lifecycle efficiency |
FAQ – Closed vs Open Vaping Systems
Are closed systems more expensive over time?
In most cases, yes. Unitised cartridges combine packaging and excise into smaller volumes, increasing average cost per millilitre.
Are open systems still considered complex?
Modern open systems increasingly use smart wattage adjustment and coil-recognition logic, reducing setup complexity compared with earlier generations.
Why are open systems more common after the disposable transition?
Reduced availability of single-use products, combined with excise efficiency and lower WEEE impact, has increased adoption of refillable platforms.
Intent Discloser: This article provides technical and educational information for adult users in Ireland. It does not provide medical advice, health claims, or cessation guidance.