Air Conditioner Heating / Cooling

How to Install a Ductless Mini-Split Air Conditioner - This Old House
[](https://youtu.be/ozaw9QhxkQU)
https://youtu.be/ozaw9QhxkQU

9000 BTU Panasonic Powered Wall Mounted Split Air Conditioner
with Heat Pump 5 meters pipe kit and 5 years warranty
https://www.appliancesdirect.co.uk/p/eiq-9wminv/electriq-eiq9wminv-air-conditioner

+ A++/A+ Rating 2017 ERP
+ Cooling, Heating & Dehumidifying
+ Cooling/Heating capacity: 1.5-3.3 kW
+ Outputs **9000 Btu/h** (variable speed inverter)

## What is a BTU?

1 BTU is the amount of heat required to raise the temperature of one pound of liquid water by one degree from 60° to 61° Fahrenheit at a constant pressure of one atmosphere. As a general rule we advise you to buy an Air Conditioner with a minimum 3,000BTUs as this is the minimum required to cool a small room (10sq/m) on a hot day. Medium rooms (24sq/m) need around 10,000BTUs and larger rooms and office spaces (36sq/m) require around 15,000BTUs.

Is this "enough"...?
Internal dimensions of a 40-foot container: 12.022m x 2.353m
Surface area = 12.022 x 2.353 = **28.29m2**
Given that _some_ of the internal space will be "used up" for walls and furniture,
I expect that 9k BTU will be "enough" for a container.

https://www.aircon247.com/g/1255368/where-to-best-position-an-air-conditioner-.html
http://www.yougen.co.uk/blog-entry/1679/How+'28'26+where'29+to+position+your+air+source+heat+pump

We need to "MVP" this.