BESTACBRAND
DU Tech Team
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Which AC Size is Best for My Room?
Stop guessing between 1 Ton and 1.5 Ton. Answer 4 quick questions about your room — get the right AC size so you don't overpay on electricity.
Room Specifications
Recommended Tonnage
1 Ton
12,000 BTU/hr cooling capacity
Room Area
11 m²
(120 feet²)
Raw Calculation
0.93 Ton
before rounding
Shop 1 Ton ACs
Based on your room specifications, we recommend a 1 Ton AC for optimal cooling efficiency.
View Best 1 Ton ACsThe Math Behind the Cooling
Our formula follows the same heat load calculations used in aerospace engineering and HVAC design.
Solar Gain Factor
Top floors and west-facing rooms absorb 20-40% more heat. We apply aerospace solar gain principles from aircraft thermal management.
Volume Calculation
Higher ceilings mean more air volume to cool. Standard 8-10ft vs high ceilings (>10ft) requires 15% additional capacity.
Heat Load Formula
Base: 1 Ton per 12 m² (130 sq ft). Adjusted for ceiling height, floor level, and sunlight exposure.
Tonnage Reference Table
| Tonnage | BTU/hr | Room Size (sq ft) | Room Size (m²) | Ideal For |
|---|---|---|---|---|
| 0.75 Ton | 9,000 | 80-100 | 7-9 | Small bedroom, study |
| 1.0 Ton | 12,000 | 100-130 | 9-12 | Bedroom, small office |
| 1.5 Ton | 18,000 | 130-180 | 12-17 | Master bedroom, living room |
| 2.0 Ton | 24,000 | 180-250 | 17-23 | Large living room, hall |