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Free Instant Estimate
Wondering whether upgrading from your old non-inverter aircond to a new inverter unit is worth it? Enter your HP, usage and electricity rate, and the calculator estimates your monthly savings, yearly savings and the payback period for the inverter price difference — with a clean visual comparison.

Free Instant Estimate
Compare your old non-inverter aircond with a new inverter unit — monthly savings, yearly savings and payback period.
TNB domestic average ≈ RM 0.509/kWh
Typical market premium for the same HP. KL Renovator installs the unit you buy — this is not our pricing.
Inverter airconds typically use ~35% less electricity than non-inverter units in Malaysian conditions (industry estimate; actual savings depend on runtime pattern, room heat load and usage temperature). The price premium is the typical market difference for the same HP — editable so you can use the exact quote you received. This calculator estimates electricity only; it does not include servicing or repair costs.
Select the horsepower (HP) of your current aircond.
Enter your daily usage hours and days per month — inverter savings grow with runtime, so 8+ hours a day makes the upgrade far more attractive.
Set your electricity rate (default RM 0.509/kWh, the TNB domestic average — edit to match your bill).
Enter the inverter price difference for the same HP — the typical market premium is pre-filled and fully editable.
The calculator compares the electricity used by a non-inverter unit against an inverter unit (which uses ~35% less) and computes monthly savings, yearly savings and the payback period.
The result shows a visual kWh comparison bar, and you can send the numbers to KL Renovator on WhatsApp to discuss the installation.
Inverter savings are proportional to usage. A unit running 8+ hours a day can save RM 50–150/month; a unit used 2 hours a day will take much longer to pay back the premium.
Bigger units use more electricity, so the absolute savings (and the price premium) are higher for 2.0 HP+ units.
TNB rates are tiered. Use the effective rate from your bill (total RM ÷ total kWh) for the most accurate savings figure.
Inverter units typically cost RM 500–1,200 more than equivalent non-inverter units depending on HP and brand. The calculator lets you enter the exact quote you received.
A dirty non-inverter unit wastes even more electricity — servicing it (chemical wash from RM 120) is the cheapest efficiency fix and can be combined with an inverter upgrade decision.
Definitions
Short, plain-language definitions of the terms used above — written by the technicians who do the work, not copied from a manufacturer brochure.
An inverter aircond varies compressor speed instead of switching it fully on and off. Once the room reaches the set temperature the compressor slows to a trickle rather than stopping, which holds the temperature steadier and avoids the heavy current spike of every restart. That is where the electricity saving comes from — it is a control difference, not a stronger cooling capacity.
Inverter savings only show up on units that run for hours at a time. A living-room unit switched on for 45 minutes will not pay back the price difference.
MEPS is Malaysia's Minimum Energy Performance Standards scheme, administered by the Energy Commission. Air conditioners sold here carry a star label — more stars means less electricity for the same cooling. The label is a comparison tool between models of the same capacity; it says nothing about how your unit performs once the coil is dirty or the room is oversized.
Read the star label together with the annual kWh figure printed on it — that number is what turns into ringgit on your TNB bill.
Basic servicing is the maintenance visit: filters washed, front panel and louvres wiped, drain path flushed, outdoor coil brushed, and cooling temperature plus running current checked before the technician leaves. It keeps airflow and efficiency stable but does not strip mould off the coil. Published price starts at RM 99 per 1.0–1.5 HP unit.
Every 3–4 months is the realistic interval for a bedroom unit in KL; stretch it and the next chemical wash gets harder, not cheaper.
Side-by-side comparison
The honest answer depends on how many hours a day that particular unit runs.
| What to compare | Inverter | Non-inverter |
|---|---|---|
| Running cost, 8 h/night | Noticeably lower once the room is at temperature | Higher — full-power restarts all night |
| Short 30–60 min use | Little advantage | Perfectly adequate |
| Repair parts | PCB-dependent, dearer boards | Simple, cheap, widely stocked |
| Voltage-fluctuation tolerance | Sensitive — surge protection matters | More tolerant |
In short: Inverter for bedrooms that run all night; non-inverter is still the rational choice for a guest room or a shop that cools in short bursts.
Inverter airconds typically use about 35% less electricity than non-inverter units. For a 1.5 HP unit running 8 hours/day at RM 0.509/kWh, that is roughly RM 50–60/month or RM 600–700/year in electricity savings alone.
With typical 8-hour daily usage, the inverter price premium (usually RM 500–1,200) pays back in about 1–2 years. After that, the savings are pure gain — and inverter units also cool more quietly and hold temperature more steadily.
If your unit runs 6+ hours a day, yes — the electricity savings usually cover the price difference within 1–3 years, and inverter units last longer because the compressor does not stop-start. For light usage under 3 hours a day, the payback is slower and a well-maintained non-inverter may make more sense.
Not exactly — 30–40% is the realistic range for cooling electricity in Malaysian conditions. The exact saving depends on runtime pattern, room heat load and temperature setting. KL Renovator's calculator uses a conservative 35%.
Yes — KL Renovator installs all 20 major brands, inverter and non-inverter, wall-mounted, ceiling cassette and window units. Installation starts from RM 199 (1.0–1.5 HP wall-mounted) including 7 ft of copper pipe, wire and drain pipe, vacuum pump commissioning and a 1-month workmanship warranty.
Estimates are instant; the final price is confirmed before any work begins. No hidden charges, 1-month workmanship warranty, same-day service across KL & Selangor.