There are multiple good types of Heating and A/C units and I will go through each and tell you why they are great, and the first one is the traditional window system.
The window system is good because it can be useful to literally anyone who has a window and electricity in their home, but window systems are easy to use, and cheap to fix, and if your window system is presenting any troubles, you may be able to fix it without the help of an Heating and A/C dealer.
The next Heating and A/C unit is the electric gas furnace. While there are some downsides to the electric gas furnace oil furnace, there are also several wonderful things about it, however an electric gas furnace can heat your beach house faster than any other gas furnace. After that both of us have the portable space heater, and portable space oil gas furnaces are good because of their simplicity. When your feet are cold, you want a portable space furnace nearby; Following the space furnace is the second Heating and A/C unit, the central system, however central systems are quite large, and can be actually high-priced, however if you purchase a wonderful one, your central system will keep your beach house cool with minimal repairs ever being needed.The last Heating and A/C unit I will mention is the smart thermostat. A smart thermostat can be connected to both a gas furnace and an system, and it can be mounted on almost any wall in your home, however smart thermostats can also tell you when the air filter needs changed on your central system, and it can tell you several other troubles that your gas furnace or system is having, which can be a big blessing to an Heating and A/C dealer.