Transparent decision tools

Cooling calculators built around your room and tariff

Estimate capacity, electricity cost and ownership cost with visible assumptions. Every result is a practical range or scenario — not a false promise of engineering precision.

Calculate my BTU range Estimate running cost

Choose your route

Start with the type of outcome you need

01Room capacity

BTU calculator

Use dimensions, insulation, glazing, sun exposure and occupancy to estimate a sensible range.

02Electricity

Running-cost calculator

Use rated watts, your tariff and expected operating hours to compare scenarios.

03Fuller budget

Ownership cost

Keep purchase, delivery, accessories, installation and electricity visible over three years.

Compare on evidence

Four checks that protect your budget

Start with capacity, then check running cost. If permanent installation is likely, treat the result as preparation for a professional heat-load assessment and quotation.

Use measured inputsRoom dimensions and a current tariff improve the usefulness of the result.

Read the rangeCapacity and usage results are estimates, not guarantees.

Check product dataLoad only verified rated power and manufacturer specifications.

Compare scenariosTest low, expected and high use rather than relying on one number.

Ready to narrow it down?

Turn room details into a practical shortlist

Use transparent calculators first, then compare verified model specifications or request an installation quotation.

Find my cooling route Read buying guides