Calculators
For a quick first idea before the survey. Every tool shows its assumptions; you can print the result or attach it to a quotation request.
Which VRF?
A system type recommendation from building type, area, heating need and outdoor unit space.
System type · alternatives · kW range
Capacity estimate
Indoor unit sizes per room, total load, outdoor unit and connection ratio from a room list.
Indoor unit list · HP · connection ratio
Refrigerant check
Smallest-room concentration of the system charge (EN 378) and CO₂ equivalent for F-gas scope.
kg/m³ · limit · t CO₂e
Savings potential
Annual potential from after-hours running and setpoint limits; optional simple payback.
kWh and ₺ range · assumptions
What size AC?
Split AC capacity for a single room: area, use, region and sun exposure.
9,000 – 24,000 BTU/h
What these tools are — and aren't
The tools use common preliminary sizing factors. Their job is to show the scale and raise the right questions before the survey.
- Final capacity comes from a heat gain calculation: insulation, glazing, internal loads, occupancy and fresh air.
- Outdoor unit sizes and connection ratio limits vary by brand and series.
- The refrigerant check is simplified; A2L refrigerants such as R32 carry additional rules.
- The savings tool gives potential; the real impact is measured on site under comparable conditions.
Worth knowing
Around AC and VRF, we also do all of this.
Let's verify your estimate on site.
Attach the tool result to your quotation request; the Klimanist team will finalise it on site.