The answer to 'what is heat pump' is a heating and cooling system that transfers heat between the inside and outside of a home. Heat pumps work by moving heat rather than generating it, making them an efficient alternative to furnaces or air conditioners. They use electricity to power a refrigerant-based system that can both heat and cool a home, depending on the season.
Heat pumps are a popular choice for homeowners because they are energy-efficient, cost-effective, and environmentally-friendly. They can provide both heating and cooling from a single system, and many models are designed to work well in cold climates. However, they may not be the best option for homes in extremely cold regions where temperatures drop below freezing for extended periods.