A commonly used formula is 600-650 square feet per ton. So it would be recommended to use a 2-ton heat pump for a 1300 square foot home. However, other variables are often considered, too, such as the age of the house.
A 4 ton heat pump should be fine, depends on how well your house is insulated. If the house is well insulated you might be fine with a smaller unit.
No. The compressor is needed to run in reverse in order to pull warm air from the outside to heat the home.
No, the heat pump will also cool the home.
Heat pump. (electricity)
A heat pump is often used in air conditioning units and refrigerators because a heat pump is used to transfer heat from one place to another. Often heat pumps are used to remove heat from a building
Window units are used to heat specific areas of the home. If you want to heat your whole house a heat pump is the better choice.
A heat pump warms a house by transferring heat from outside to inside. This process involves the refrigerant evaporating at a low temperature outside the house to absorb heat, then condensing at a high temperature inside to release that heat. The cycle continues, transferring heat energy from one location to another.
I would recommend this site here http://www.ehow.com/how_2125874_install-heat-pump.html. It will give an easy step by step directions to install your heat pump.
All the heat pumps that I know of are electric. Some may have gas backup-- in very cold conditions , heat pump will not work, so some kind of backup is needed.
The 1400 is not a pump. The pump version is the 1300.
buy a window, thru the wall, or portable unit. you can size it wherever you buy it. they will have a chart of some sort to size it for you.