Cost per hour
Convert rated watts and cents per kWh into a conservative full-input figure.
Running cost depends on electrical input, your tariff and operating time. Rated maximum input and likely cycling consumption are related, but they are not the same claim.
Rated inputUse verified watts
TimeHours actually used
Unit rateYour cents per kWh
Your scenarioNot a vague average
Convert rated watts and cents per kWh into a conservative full-input figure.
Compare different hours, days and weeks instead of extrapolating one hot afternoon.
Include purchase, delivery, window kits, maintenance and installation where relevant.