While heating costs for some are down thanks to plummeting oil prices, the cost to heat homes in the US with electric, natural gas and propane is set to jump as much as 10% for winter 2024-25. The projected spike is due to electrical grid failures, rising gas prices and a winter that’s projected to be colder than average, particularly in the Northeast and Midwest.Keeping your thermostat set to this exact temperature will help, but you could turn the heat down even further and rely on warmth from an efficient electric space heater as…