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Radiant heat with no moving parts, or stored heat in a liquid core

Könighaus P-Serie 1000 W vs Noirot Radiaflo

Do you want heat with nothing to move or wear, or heat that keeps radiating after it switches off?

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Both are premium-priced, both run at 1,000 W, and both are aimed at buyers who have already ruled out a basic fan heater. What separates them is the heating mechanism itself.

Könighaus P-Serie 1000 W wall-mounted infrared heating panel

Könighaus P-Serie 1000 W

8.7/10

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Noirot Radiaflo fluid inertia electric radiator

Noirot Radiaflo

8.1/10

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Compared on P-Serie 1000 W Radiaflo
Power 1,000 W 1,000 W
Heating mechanism Infrared radiant panel, no fan, no moving parts Fluid thermal inertia — mineral oil heated by immersion resistance
Heat retention after switch-off Not published Continues radiating stored heat, per Noirot
Room coverage (manufacturer) 14–26 m (46 to 85 ft)² Not published
Programming Not published Free daily and weekly programming
Thermostat included Not confirmed — recommended as a separate accessory Not published
Certification Not published Origine France Garantie + NF certification
Warranty 5-year manufacturer warranty Not published
Listed on amazon.com Yes Yes

A tick marks the better answer on that line only. Counting ticks does not decide the page — the two verdicts below do, because these products answer different questions.

Who should take which

Buy the P-Serie 1000 W

Take the Könighaus for a well-insulated room where silent, fan-free radiant heat is worth the price, and where you're comfortable budgeting for a thermostat separately. It's confirmed for sale across four European markets.

Buy the Radiaflo

Take the Noirot for genuine thermal inertia — warmth that continues after the element switches off — plus real programmable scheduling and French certification, if you're buying from France specifically, where it was the only market we found it in stock.

The questions that keep coming up

Which one holds heat longer after switching off?

Only Noirot makes and documents that specific claim for the Radiaflo — mineral oil heated by an immersion resistance that keeps radiating stored warmth. Könighaus's infrared panel doesn't publish an equivalent thermal-inertia claim; it's a direct radiant design without a stated heat-storage medium.

Is fluid inertia better than infrared for a drafty room?

We're not going to make a physics claim neither manufacturer backs with comparable data. What we can report is that Könighaus itself states the P-Serie panel suits well-insulated rooms or occasional use rather than sustained full-time heating in a drafty space — a caution its own listing gives, not just our inference.

Each one in full

  • Electric space heaters

    Könighaus P-Serie 1000 W

    1,000 W infrared panel · wall-mount · aluminum frame

    A wall-mounted 1,000 W infrared radiant panel from Könighaus's P-Serie line, built into a powder-coated aluminum frame. Könighaus states no fan and no forced air circulation, publishes a wattage-to-room-size table across its whole line (130 W to 1,200 W), and backs the panel with a 5-year manufacturer warranty. The box includes mounting hardware and a 1.8 m (6 ft) cable — Könighaus's own listing does not confirm a thermostat is included.

    Best for: A well-insulated room where silent, fan-free radiant heat is worth paying more for than a fan heater's faster warm-up.

    8.7/10

    Check price on Amazon Read the review
  • Convector & panel heaters

    Noirot Radiaflo

    1,000 W fluid inertia · daily/weekly programming · NF-certified, made in France

    A 1,000 W electric radiator using fluid thermal inertia — Noirot heats mineral oil with an immersion resistance, so the unit keeps radiating stored warmth after the element cuts out. It carries free daily and weekly programming, a window-open detector, a parental lock, Origine France Garantie and NF certification, and Noirot states it was voted 'Product of the Year 2024' in France. It's the most expensive heater in this family, and we could only confirm a live offer on one of the six markets we checked.

    Best for: Someone in France specifically who wants a French-made, NF-certified fluid-inertia radiator with full daily and weekly programming, and is fine paying a real premium for it.

    8.1/10

    Check price on Amazon Read the review