yes they can. i recently had to get mine cleaned because of a nest they had built on the top just inside we could not use our central air without getting bees in the house so we just used a window air conditioner over the summer.
Yes. HVAC systems offer both heating and cooling.
Most home systems do offer both heating and cooling in one. Some of the older systems have separate heating and cooling. Heat pumps provide both heating and cooling. Other types of systems do not. However Heat Pumps can only efficiently heat a home if it's not excessively cold and therefore you usually need a supplementary heating system.
Used on heating/cooling systems. Allows uninterrupted circulation through heating/cooling unit or heating/cooling system using 3-way valve.
You can visit www.lennox.com for excellent information on services. They provide the best when dealing with heating and cooling systems. All systems are energy efficient and can save you money in the long run.
Regulating the temperature of a house is generally easier by heating it rather than cooling it. Heating systems can more easily raise the temperature of a space, while cooling systems often have to work harder to lower the temperature.
Heating, ventilating, air conditioning systems (HVAC) most often use a refrigerant for cooling and a furnace or heat pump for heating. Both heating and cooling are directed through the same ventilation network.
Weather systems
There are two thermometers in this kind of thermostat. The one in the cover displays the temperature. The other, in the top layer of the thermostat, controls the heating and cooling systems.
You can find ratings online in many places for heating and cooling systems. You can go to the website of the store you plan on purchasing them through and they will have a list of customer reviews and you can compare the different systems side by side.
Yes, the cost of heating and cooling is typically included in the electric bill as these systems rely on electricity to operate.
You learn everything about HVAC systems by visiting a shop that specializes in heating and cooling services. Possibly someone that works on heating and cooling systems that has long term experience in this type of system can give you good information about how HVAC systems work.
Geothermal heating and cooling systems are the most cost effective. Although they may be slightly more expensive to install, the cost of use long term is greatly decreased from traditional sources of heating and cooling.