When my partner, Russel and I moved down south, I was a bit anxious that the house was equipped with an electric heat pump. While heat pumps supply both heating plus cooling capacity, they are only effective until the outside temperature drops too cold. The heat pump doesn’t burn fuel to generate heat. It simply moves heat energy from a single location to another. It works entirely well for a/c, effectively handling humidity and operating efficiently. For heating, the heat pump finds ambient warmth in outside air, compresses it to a higher temperature plus brings it inside. This process is clean, safe plus quiet, however is is insufficient in severely frigid weather. The real estate agent assured Russel and I that the outside temperature in our area would never get that cold. The first year the two of us lived in the house, the area experienced an unprecedented frigid winter. The temperature dropped below zero, and our house was uncomfortably cold. we raised the thermostat setting, and the heat pump ran non stop. It simply couldn’t supply adequate heat to meet demand. Russel and I abruptly discovered that every store had sold out of space heaters. We were fortunate to have a heated blanket on the bed. We ended up buying a bunch of jackets, bundling up to keep warm. After that unpleasant experience, I hired a local Heating and Air Conditioning corporation to install an additional furnace. We ended up purchasing a propane heater, which was rather fancy, plus we’ve never needed it. Since that first Wintertime, the weather has remained well above freezing and the heat pump has been adequate.