Outdoors blog


What size AC do I need for my RV?

You need a 15k BTU AC for an average 24 foot RV. You will need bigger size if have more than 2 people or are in hot spot.

In order to choose the right size of the air conditioner for your RV, several factors must be taken into consideration. Remember that the physical appearance of an AC unit cannot wholly determine whether or not it will comply with the cooling needs of your camper.

You might come across some air conditioning units that almost have the same hole sizes required for their installation in the roof but, their heights will inevitably vary. The standard size of an RV air conditioner is 13,500 BTU but, depending on the requirements of the camper, it can differ. In the following section, we will be jotting the chief aspects that influence the ideal size of the AC for an RV.


  • The square foot of the RV

First things first, to ensure that the air conditioner at your disposal is of the right size, re-calculate the square foot of your RV. This is so because if the size of the AC doesn’t correspond with the dimensions of the camper, you will either end up obtaining something that is too large for the given amount of space, or the one that is too small and will have to work double as hard to bring down the temperatures of the outsized interiors.

If you are of the opinion that a large AC will cool down the insides of the RV faster and resultantly, reduce your utility bills then let us burst that bubble of myth for you. ACS that are too big for the space they have been set up in, do not get enough time to dehumidify and remove the necessary moisture thereby, leaving the space extremely cold and muggy.


  • The BTU

For the uninitiated, BTU translates to British Thermal Unit and it is used to measure the amount of heat that is emitted in the room by the air conditioner. Hence, it is understandable that if the BTU of an air conditioner is more, it will automatically dissipate more heat and consume extra energy.

For instance, if the RV air conditioner is of 15,000 BTU, it will require around 3500 watts to get started and 1500 watts while running. Similarly, in the case of a 7000 BTU RV air conditioner, 1700 watts power will be needed to start it up and 600 watts to keep it running.


  • Duct or ductless unit

An AC unit that is ducted will have an outdoor air compressor along with an indoor air handler that is connected through copper refrigeration lines. On the other hand, although ductless AC units have the same set of components there are two different types of units classified under them, which are, single-zone units and multi-zone units.

Leave a Reply