Klimata Lab
Interactive tools with fully published methodology — every factor and coefficient is documented.
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AC size calculator (BTU/kW) for Latvian apartments and houses
For a typical Latvian room you need roughly 100 W of cooling per m²: about 2.0 kW for up to 20 m², 2.5 kW for 20–25 m², and 3.5 kW for 25–35 m². Sun-facing rooms, top floors and poorly insulated panel buildings need more — use the calculator below for your exact case.