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Kogan 2000W Black Glass Portable Electric Panel Heater KAHTP20BLKA

Kogan 2000W Black Glass Portable Electric Panel Heater KAHTP20BLKA Questions & Answers

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KAHTP20BLKA (Black, 2000W)

What is the energy rating. Is it cost effective to run

3 answers
Daniel Ruben
Daniel Ruben

All electric heaters are equally efficient so they don't really have energy ratings. The whole idea of a heater is to maximize electrical resistance to generate heat (ie to be as "inefficient" as possible). This is not how most electrical products work. The cost depends on the wattage. A 2000W heater is as efficient as any other 2000W heater whether it's a fan, oil, convective or other kind of heater. 2000W means if your electricity tariff is eg 25c/kwh it will cost 50c an hour to run, whatever the type of heater. It will cost less obviously if you use it at a lower setting like 1000W.


Thanks Daniel. Was trying to research as some electrical devices use more power e.g. washers/dryers/fridges/freezers. Electricity bills are huge and the running costs per hour is important to know.

Daniel C.
Daniel C.

Worth noting that even though all 2000W heaters will cost the same, per hour, to run. Their actual 'practical' heat output can vary tremendously.

An oil/pannel/convective heater works by using electricity to heat the oil/heat-sink inside it, then turns the power off, allowing the residual heat energy in the oil/heat-sink to dissipate into the surrounding air, which rises, pulling cool air in. As the temperature of the oil/heat-sink decreases, the power turns back on to bring the temp back up. So they're generally thought of as 'efficient' because the power isn't actually running all the time. However, because they don't actually 'push' the air around actively, they can be pretty hopeless at warming rooms, depending on the size and how well-sealed the room is.

Whilst 'fan' heaters are generally thought of as real power-suckers because they have to run constantly to generate heat.
The fan itself actually uses very little energy (<50W generally ~1.25c per hour), so they can actually be a lot more effective at heating larger spaces and bringing a room's temperature up quickly.

This is where your style of usage comes into play (making some general assumptions for ease of calculation):

If you run an oil/panel heater all day (24hrs), it may actually only use power for half that time.
So, 12hrs @ 2000W (2kW) with an energy tariff of $0.25/kWh: 2 x 0.25 x 12 = $6/day (24hrs)
(Your tariff can be found on your power bill)

If you run a 2000W fan heater for a day:
2 x 0.25 x 24 = $12/day

However, if you use the fan-heater sparingly (or use its built-in thermostat) and only use it for short periods it can work out far more cost-effective, due to the fan's more effective air circulation.

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