Two sizes we actually stock
Most sellers publish six or seven chiller sizes. We publish two, because two is what sits on the shelf in Cikarang together with the control boards, sensors and circulation pumps that go with them. When a board fails in year four, the owner of a 1 or 2 HP unit waits two days for a replacement rather than five weeks for a factory order. Above 1,000 litres we run two 2 HP units in parallel and quote per project — that is the route club recovery pools and hotels running two tubs off one plant room take.
| Size | Nominal cooling | Max volume with a lid | Power draw | Price |
|---|
| 1 HP | 2.8 kW | 500 L | 950 W | Rp 39.9 million |
| 2 HP | 5.6 kW | 1,000 L | 1,850 W | Rp 46.9 million |
| Above 1,000 L | 2 × 5.6 kW | two 2 HP units in parallel | 2 × 1,850 W | quoted per project |
That maximum volume column is the line's rating — 1 HP to 500 litres, 2 HP to 1,000 litres — and in hot lowland we still size from the load rather than from a brochure. It is the largest tub the unit still holds at 5 degrees in hot lowland Indonesia with the lid on: 33-degree air, 29-degree mains water, low-temperature capacity loss already subtracted. In Bandung each figure rises about 45 per cent because the mains water arrives at 22 to 24 degrees; in a highland town like Berastagi, about 120 per cent — the 1 HP unit that we cap at about 260 litres in hot lowland covers its full 500 litres there. For your own city, run the chiller calculator.
Touchscreen, ozone, filter, timer: what is in the box
Every unit carries a touchscreen on the front panel rather than a rubber keypad and a seven-digit service code. You touch the target, the controller holds it to ±0.3 degrees, and the setpoint survives a power cut. On the same screen there is a timer with two windows a day, which matters more than it sounds: you can tell the tub to do its heavy work between one and six in the morning and merely hold through the afternoon.
Ozone is generated inside the cabinet and injected into the circulation loop, so the water is being treated whenever the pump runs rather than whenever somebody remembers to pour something in. Below it sits a 20-micron cartridge that catches hair, leaves and skin. Together they are why a domestic tub runs for weeks between changes; the rinsing schedule and what it does not cover are under maintenance and service.
Displaytouchscreen, 0.5-degree steps
Holding accuracy±0.3 °C measured in the tub
Timertwo windows per day
Ozoneruns continuously with the circulation pump
Filter cartridge20 micron, rinsed fortnightly
Protectionlow voltage, over-current, loss of flow
Maximum hose run6 metres on insulated hose
3 to 40 degrees: a chiller that also heats
This is the specification buyers are most often surprised by. The panel can be set anywhere between 3 and 40 degrees. Below room temperature the unit moves heat out of the water; above it, the same machine moves heat into the water instead of dumping it to the air. One machine, two sessions. Your tub is at 4 degrees at six in the morning, and if you want a warm soak in the evening the same tub goes to 38 without a second appliance on the deck.
If the warm end is something you intend to use daily — alternating hot and cold, or a warm tub in the highlands where the night drops to 16 degrees — the size we specify and the parts we include are different, and that is set out on the heating and cooling chiller.
Some we import, some we build, the prices sit together
We are not going to sell you the story that imported units are better than locally built ones, or the reverse. Some of our chillers come from overseas factories and some we assemble in Cikarang, and at the same size the price gap is thin — thin enough that it is not the basis on which we recommend anything. What decides which unit arrives at your house is the size the load calculation asks for and what is in the warehouse when the order lands.
There is one warranty: two years on the compressor plus the first year of service visits, identical on both routes. We are not willing to have an owner feel they got the second-class guarantee because their serial number starts with a different letter. If a compressor stops in month twenty, the procedure is the same in both cases and it is written down under maintenance and service. What we do build ourselves in Cikarang is everything that decides whether these components survive here: an oversized titanium heat exchanger because our water arrives hotter, coated condenser fins for coastal air, a 316 stainless frame, and a pipe layout a local refrigeration technician can service without special tools.
Sizing: two tests, not one
A chiller has to pass both. First, its real output at the target temperature must be at least twice the tub's holding load. That margin is not there to sell you a bigger unit; it exists because a compressor running flat out all day ages fast, and the hottest day of the year is not the average day. Second, it must pull a full tub from local mains temperature down to target within eight hours, so a first fill can run overnight.
- 250 litres in the lowlands: 1 HP. The holding load is 387 watts in Jakarta and the first fill lands at 7.6 hours — tight, but inside the rule.
- 300 to 500 litres in the lowlands: 2 HP. A 400-litre tub in Jakarta carries a 516-watt load and falls from 29 to 5 degrees in 5.4 hours. A 1 HP unit on that tub stops somewhere around 9 to 12 degrees and never switches off.
- 400 litres in Lembang, Batu or Berastagi: 1 HP. Mains water arrives at 18 to 20 degrees, the load drops to 363-390 watts, and the saving is Rp 7 million.
- 600 to 1,000 litres: still 2 HP. A 2 HP unit holds up to 1,000 litres, so widening a tub from 500 to 600 litres does not change the machine — only the bill and the first pull-down grow; check whether those hundred litres are worth it.
It draws what an air conditioner draws
The second question after price is always the bill. A 1 HP unit draws 950 watts and a 2 HP unit 1,850 — roughly what the split air conditioner already in the house draws. The difference is that a chiller does not run flat out all day: once the tub is cold it only holds, and the holding cycle sets the bill. A 400-litre tub with a lid in Jakarta uses 4.9 kWh a day, about Rp 214,000 a month at the domestic tariff; the same tub in Bandung uses 4.1 kWh, about Rp 177,000. Without a lid, add roughly 38 per cent.
When this is the wrong purchaseIf the unit will stand a metre from a bedroom window, 52-58 dB at one metre is audible and the compressor starts repeatedly through the night — move the unit rather than boxing it in, because a condenser breathing its own exhaust loses up to 30 per cent of its capacity. If your local voltage regularly falls below 180 volts, fit a stabiliser ahead of the chiller: compressor damage from low voltage is excluded by every warranty, ours included. And never put an aquarium chiller on an ice bath. Those units are designed for a 200-litre tank in an air-conditioned room, and in an open garden they hold water at 16 to 19 degrees while running without pause.
Price and what the figure includes
The full line runs Rp 39.9-46.9 million for 1 and 2 HP, including installation in Java and Bali, insulated hose to six metres, the mounting plinth and the on-site cold test. If your tub was built by somebody else we still measure it and calculate its load first — an uninsulated shell can push the requirement up a full step, and the gap between 1 and 2 HP is Rp 7 million. Everything else is on the pricing page, and installation and commissioning sets out who does what on the day.
Why only two sizes?
Because two is what we stock, service and hold spare parts for. A catalogue of six sizes looks more complete, but two or three of them end up being factory orders, and the owner waits a month for a control board when something fails. Above 1,000 litres we pair two units and quote per project, and there we tell you honestly how long the wait is.
Will my unit be imported or built in-house?
It depends on the size and on stock when your order lands, and we tell you which before you pay the first instalment. Price and warranty are the same on both routes, so there is no cheap version hiding behind the expensive one. If you have a specific reason to want one or the other — a head office that specifies a particular brand, for instance — say so at the start and we will work to it.
Is it true that one chiller both cools and heats?
Yes, the set range is 3 to 40 degrees. What needs saying honestly is that taking 400 litres from 5 to 38 degrees is a real job rather than a number change on a screen, and it takes hours. If you plan to use the warm end every day we recommend going up one size, which is what the heating and cooling page is about.
Can I buy just the chiller for a tub I already own?
Yes, and that is about a quarter of our chiller sales. Send photographs, internal dimensions and whether the walls are insulated. If they are not, we will tell you what size that implies and usually suggest adding external insulation first, because it is far cheaper than moving up a step.
How long does a chiller last?
Eight to twelve years for a compressor on stable voltage with the fins washed on schedule: every three months on the coast, every six inland. What ages first is normally the circulation pump, at five to seven years, and replacing one costs under Rp 2 million.
What happens if the size is too small?
The water stops falling at some temperature, usually 9 to 14 degrees, while the compressor runs without pause. Its life shortens, the electricity bill is higher than a correctly sized unit, and the result is still wrong. That is why we decline to sell a unit smaller than the calculation, even when asked.
