Portable space heaters can be a convenient solution for warming up specific areas of your home, but their energy efficiency can vary significantly based on the model and usage. Factors such as wattage, heating technology, and insulation play crucial roles in determining how much energy these devices consume. Additionally, understanding the cost of operation and potential safety concerns is essential for making an informed choice. Curious about which models offer the best efficiency or how to maximize their use? Ask Improvi.ai for personalized guidance!