Coffee Maker. How Much Power for a Mobile, Marine, or Off-Grid Electrical System?
17 de marzo de 2024 · 7 min · 15K vistas
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Calculating the power consumption of a coffee maker requires determining the device's wattage and the duration of its brew cycle.1:05 Nate demonstrates two methods for this calculation: a quick estimation using the manufacturer's spec sticker and a precise measurement using an AC power meter.4:11 For a coffee maker rated at 1550 watts with a 6-minute brew cycle, the calculation (1550 watts × 6 minutes / 60 minutes) yields 155 watt-hours per pot.2:42 Using an AC power meter, Nate measured 140 watt-hours for the brew cycle and an additional 85 watt-hours for a 70-minute keep-warm cycle, totaling 225 watt-hours.5:02 This total draw represents an 18.75 amp-hour loss from a 12-volt, 100-amp-hour battery bank, excluding inverter efficiency losses.5:46 To minimize power consumption, Nate recommends using a coffee maker with an insulated carafe to eliminate the need for an active keep-warm heating element.6:07 These calculation principles apply to other high-draw appliances like induction cooktops, blenders, and air fryers.6:38
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