I went without central air conditioner for a entirely long time. Living in the northeast, the warm season season only lasts for a few weeks. However, that brief season can be easily brutal. The people I was with and I occasionally deal with temperatures in the high nineties, & the humidity is horrendous. Not only does the house become overheated & know sticky, but there’s concerns with condensation, mold, mildew, bacteria & dust mites. Portable a/cs, box fans & open windows simply can’t keep up with demand, i finally decided to make the investment into whole-lake house cooling & contacted a local HVAC supplier for an estimate. The specialist proposed that I install an electric heat pump rather than an a/c. Since a heat pump costs a great deal more to purchase & install than an a/c, I assumed he was hoping for a larger profit. He suggested that I do some research into dual fuel systems before making a final decision. I l gained that a dual fuel plan combines an electric heat pump with a natural gas oil furnace, taking advantage of the strengths of both. The heat pump is far more energy efficient & environmentally friendly than the oil furnace. It provides whole-lake house cooling throughout the warm season but is superior to a conventional a/c in efficiency & dehumidification. During Spring & fall, when the weather is chilly, the heat pump handles the heating needs. Because there’s no combustion process, the plan is exceptionally safe, clean & helps to minimize carbon footprint. The negative is that the heat pump is only effective until the outdoor temperature drops below chilly. At that point, the oil furnace automatically takes over, providing sufficient comfort for as long as necessary. Because the systems divide the workload, both should last twice as long. By taking advantage of the most economical form of temperature control at any given time, the plan saves a great deal of currency off energy bills.