Air Conditioning and Heating 4 U | Air Conditioning and Heating For You

Here whenever you need us

24h* Emergency Service

Established 2011

Put your trust in us

Call Today 07538 882244

Nationwide coverage

BTU Calculator

Please contact ACH4U for expert advice and specific calculation of your cooling needs.
This BTU calculator is a guideline only. ACH4U will not be held liable for any problems arising from the use of this BTU calculator.
Contact us now for a free no obligation quote for all our cooling and air conditioning services.


1. Select measurement type
Metric (metres) Imperial (feet)
2. Your room dimensions
Height of room:
Width of room:
Length of room:
Window Area x2:
3. Type of room:
4. What is below the room?
5. What is above the room?
6. Select type of outside wall:
7. Select type of window:
8. Select number of outside walls: