Sam Gorman

Compare window AC and mini-split cooling costs, including upfront cost, electricity, maintenance, replacements, and break-even year.

Estimate added fan kWh and electricity cost from a dirty HVAC filter, then compare yearly savings with replacement filter cost.

Compare chest and upright freezer purchase and electricity costs, payback time, storage value, and basic floor-space fit.

Estimate a second refrigerator’s daily, monthly, and annual electricity cost, then compare it with the cost avoided by unplugging it.

Estimate pool heater, pump, and pool-light costs each month, for the first warm-up month, and across your heating season.

Estimate hot tub daily kWh use plus average monthly and yearly electricity cost with quick or heater-and-pump inputs.

Estimate an air purifier’s electricity, filter, monthly, yearly, and planned ownership costs using your own power and utility rate.

Compare yearly dishwasher and hand washing costs using your water, electricity, supply, and optional ownership costs.

Compare air fryer and electric or gas oven energy costs per cook and per year using your appliance ratings and local energy prices.