How much would it cost to use electric heat in a 900 square foot house in Wisconsin?

$600.00 for three months or until warmer weather. Buy 6 1500 watt heaters @ 20.00each at Home Depot. Adjust interior heat to 72 degrees. Everyboby wear long johns to keep legs warm. Add ceiling fans to blow warm air down Get humidity meter and keep humidity at 55-65 or boil water to keep humidity above 45 percent.