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Harvia KIP80B vs HUUM DROP 9kW
Side-by-side specs and the circuit each needs, the numbers, not opinions.
| Harvia KIP80B | HUUM DROP 9kW | |
|---|---|---|
| Power | 8 kW | 9 kW |
| Current draw (240V) | 33.3 A | 37.5 A |
| Breaker / wire | 45A / 8 AWG | 50A / 8 AWG |
| Recommended room | 251–424 cf | 282.5–459.1 cf |
| Stone capacity | 44.1 lb | 121.3 lb |
| Control | built-in | wifi |
| IP rating | IPX4 | — |
| Warranty | 2 yr | 5 yr |
| Price | price loading… view | price loading… view |
Prices from our Amazon cache where available; specs from each manufacturer manual.
Which should you get?
For a larger or colder room, the higher-output HUUM DROP 9kW has the margin; for a compact, well-insulated room the Harvia KIP80B is plenty and cheaper to run. Want app/Wi-Fi control and remote pre-heat? That points to the HUUM DROP 9kW. More stone mass (softer, longer-lasting löyly) favours the HUUM DROP 9kW.
FAQ
Is the Harvia KIP80B or HUUM DROP 9kW bigger?
The HUUM DROP 9kW is the larger heater at 9 kW versus 8 kW, so it suits a bigger or colder room, up to about 459.1 cf. The smaller unit is cheaper to run and plenty for a compact, well-insulated space; there is no benefit to over-sizing a small room, it just cycles off sooner.
Do the Harvia KIP80B and HUUM DROP 9kW need the same circuit?
No. The Harvia KIP80B needs a 45 A circuit (8 AWG copper) and the HUUM DROP 9kW a 50 A circuit (8 AWG), because they draw different current. Size the circuit for whichever you actually buy, and remember a long run may bump the wire up a gauge.