Dyson Hot+Cool vs. space heater: running cost
A Dyson Hot+Cool is cheaper to run: about $124 a year versus $148 for a space heater at typical use and 17.99¢/kWh, a $25 difference.
| Dyson Hot+Cool | Space heater | |
|---|---|---|
| Typical watts | 1,500 W | 1,500 W |
| Watt range | 5–1,500 W | 750–1,500 W |
| Typical use | 5 hours a day for 5 months a year | 6 hours a day for 5 months a year |
| Energy per year | 688 kWh | 825 kWh |
| Cost per hour | 16¢ | 16¢ |
| Cost per day | 81¢ | 97¢ |
| Cost per month | $24.74 | $29.67 |
| Cost per year | $124 | $148 |
| Per year in Hawaii (43.51¢) | $299 | $359 |
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What drives the difference
- Dyson Hot+Cool: In heat mode a US Dyson Hot+Cool draws up to 1,500 W like any other space heater; the fan or purifier mode uses only 5-40 W.
- Space heater: Nearly all plug-in space heaters draw 1,500 W on high, the most a standard 15-amp outlet can safely supply. Every model converts electricity to heat at the same 100% rate, so the thermostat setting and hours matter more than the brand.
Ways to cut either cost
Same heat output at a fraction of the purchase price, with quieter, steadier heat.
See options on AmazonPersonal warmth at about 100 W.
See options on AmazonStores heat in oil so it holds room temperature on its lower 600-900 W settings and cycles less.
See options on AmazonWe may earn a commission from qualifying purchases. It never changes the numbers we show. Disclosure.
Frequently asked questions
Which costs more to run, a Dyson Hot+Cool or a space heater?
At typical use and the U.S. average rate (17.99¢/kWh), a space heater costs about $148 a year versus $124 for a Dyson Hot+Cool. That's $25 more, or 1.2× as much.
How many watts do Dyson Hot+Cool and space heater use?
A Dyson Hot+Cool typically draws 1,500 W (range 5–1,500 W). A space heater draws 1,500 W (range 750–1,500 W). Watts alone don't decide cost. Hours of use, cycling and standby matter just as much.
Rates: EIA, 12 months ending 2026-07. Methodology.