De'Longhi Radia S Digital Oil Column Heater 2400W vs De'Longhi Dragon5 Connect 2400W Oil Column Heater Wi-Fi

What you'll actually notice

These two heaters share the same broad architecture: 2400W fan-free oil-column heating for longer room-heating sessions.

The Radia S TRRS1224E.G keeps the workflow local. It gives you an electronic thermostat, three power settings, Eco mode, child lock and a 24-hour programmable timer without Wi-Fi.

The Dragon5 Connect adds the connected layer: My Comfort Hub app control, remote scheduling and automatic power modulation over 2.4GHz Wi-Fi.

Both carry a seven-year warranty and both now have current evidence for the version we checked for tip-over auto-off and a safety thermostat.

So this is not a safety-versus-safety comparison or a 2400W-versus-2400W comparison. It is mainly local digital control versus connected scheduling and automation.

What changes the choice

Will remote scheduling actually improve your routine?

Radia S gives you a local 24-hour timer and thermostat.

Dragon5 adds My Comfort Hub app control and scheduling, which can be useful when you want the heater warming before you enter the room or want to adjust it without being beside the appliance.

If you normally set the heater while you are already in the room, Radia S avoids the extra app and network layer without giving up the core oil-column heating format.

Do you want automatic power modulation?

Dragon5 is built around more automatic regulation, while Radia S gives you three local power levels and Eco mode.

De'Longhi also publishes a ±0.5°C temperature-control claim for Dragon5. PIQSY treats that as a manufacturer control claim, not proof that every part of a real room stays within half a degree.

The value is therefore smoother automatic management, not an independent guarantee of tighter whole-room temperature performance.

Does the weight difference matter?

Radia S is listed at 15.59kg.

Dragon5 Connect is 16.82kg.

Both are castor-based appliances that are easiest to roll on one level. Neither is a natural choice for daily stair carrying.

The roughly 1.2kg difference is real but secondary. If either one has to be lifted often, a lighter panel or ceramic heater is a better architecture altogether.

What do the room-size figures actually tell you?

De'Longhi gives 72m³ guidance for Radia S and 75m³ for Dragon5 Connect.

Those are manufacturer sizing figures, not independent proof that Dragon5 heats a real room better.

Insulation, drafts, ceiling height and outdoor temperature will matter much more than the three-cubic-metre difference between the published figures.

Treat both as broadly similar room-scale products.

Is the safety documentation meaningfully different?

No longer.

Current exact Australian material lists tip-over auto-off and a safety thermostat for both models.

Radia S also lists child lock, and Dragon5's current record supports child-lock functionality as part of its connected control environment.

Neither should be chosen on the assumption that one has a fundamentally stronger safety record from the available version checked documentation.

How much does app dependence matter?

Dragon5's connected features rely on a compatible 2.4GHz Wi-Fi setup and the My Comfort Hub ecosystem.

For many buyers that is a convenience. For others, it is another layer to configure and maintain.

Radia S remains fully self-contained. If you prefer appliances that do not depend on an app for their differentiated features, that simplicity can be a genuine advantage.

The practical choice

Choose Radia S when you want fan-free oil-column comfort, a local thermostat and daily timer, and do not need remote control.

Choose Dragon5 when app scheduling and automatic power modulation will be used repeatedly enough to justify the connected layer.

Because both share the same broad heating architecture, the better choice is usually determined by control workflow, not maximum wattage, fin count or tiny differences in manufacturer room guidance.

When to choose De'Longhi Radia S TRRS1224E.G

Choose Radia S when:

• a local 24-hour timer is enough;
• you prefer a non-Wi-Fi workflow;
• slightly lower verified weight matters;
• fan-free long-session heating is the goal;
• the seven-year warranty is sufficient without app features.

It is the simpler digital oil-column choice.

When to choose De'Longhi Dragon5 Connect

Choose Dragon5 when:

• remote scheduling matters;
• you will use My Comfort Hub regularly;
• automatic power modulation appeals;
• 2.4GHz Wi-Fi setup is acceptable;
• the heater will stay on one level most of the season.

It is the stronger connected oil-column choice.

Choose neither when

Choose neither when:

• quick spot heat is the priority;
• frequent stair carrying is unavoidable;
• you want a very light heater;
• you need wall mounting;
• you do not want oil-column response characteristics.

A ceramic fan heater or smart panel is more relevant in those cases.

PIQSY conclusion

Radia S is the better fit for straightforward local digital scheduling; Dragon5 Connect is the better fit for app-led automation and remote control.

Both already deliver the same core fan-free oil-column use case. Pay for Dragon5's connected layer only if it solves a routine you will actually use.