Water systems for villas and managed portfolios.
One system per villa, producing mineral drinking water from the air or from the villa water line. For owners, and for management companies running a portfolio of properties across the islands.

What a villa needs from its water.
A villa works like a small hotel with no back-of-house. Water arrives by delivery, guests change every few days, and the supplier may be across the island or across the water.
The recommended configuration.
One system per villa, chosen for the number of guests and the water supply at that address. Air is the usual starting point.

Air, one unit per villa.
One unit per property, plugged in, independent of the network and of deliveries. A villa management company in Koh Samui runs Air systems, one per villa. Output figures are daily averages, and the systems work between 30% and 80% relative humidity.
Explore the Air range
Pure, where the line is reliable.
Pure fits a villa on a reliable mains connection, where a stable volume from the line is wanted. Five-stage reverse osmosis with remineralisation, hot and cold, in countertop or floor-standing formats.
Explore the Pure range
What a villa stops buying.
The method published on this site: 2 litres per person per day, 365 days, half-litre bottles. A villa is rarely full every night, so the figures below are the ceiling at full occupancy.
- One villa
- 6 guests × 2 L × 365 = 4,380 litres a year
- In 0.5 L bottles
- 4,380 ÷ 0.5 = 8,760 bottles a year per villa
- A portfolio of 20 villas
- 20 × 8,760 = 175,200 bottles a year
- In 19 L gallons
- 20 × 4,380 ÷ 19 = 4,611 gallons a year
At 12 litres a day, a six-guest villa sits within the average output of a single Air Stand, 16 litres a day. The assessment confirms the model against local conditions.
Assumptions: six guests per villa, full occupancy. Apply your own occupancy rate, or run the portfolio through the impact calculator.
Managing a portfolio of villas.
For a management company, the value is in standardisation. The same system in every villa means one set of consumables, one maintenance schedule and one training session for the housekeeping team.
Villas are serviced from the nearest centre: Koh Samui, which also covers Koh Phangan, Phuket or Hua Hin. Each installation ends with a report signed by both parties, so every owner has a record of what was installed in their villa.
For your own home rather than a rental portfolio, residential air-to-water systems are on our online shop.


Service and maintenance.
Villas are spread out, so service is organised by area, from three service centres with parts in stock.
- Coverage
- Koh Samui, Koh Phangan, Phuket, Hua Hin and Bangkok
- Response
- 4 hours on average
- Consumables
- Pre-filter every 4 to 6 months depending on the system, other cartridges every 12 months
- Parts
- Several hundred spare parts held in Thailand
- Support
- A named local contact, in English and Thai
A villa portfolio.
From the installations listed on the projects page. Client names are withheld at their request.
Villa questions.
Can a villa have drinking water without a water connection?
Yes. An Air system makes water from the humidity in the air, then filters, sterilises and remineralises it. It only needs to be plugged in, so it is independent of the network and of deliveries.
How are systems serviced across a portfolio of villas?
From the nearest service centre, in Koh Samui, Phuket or Hua Hin, by Minairal technicians. The pre-filter is replaced every 4 to 6 months depending on the system, the other cartridges every 12 months, and a fault gets a response in 4 hours on average.
Which system suits a six-guest villa?
At 2 litres per person per day, six guests need 12 litres. The Air Stand produces 16 litres a day on average, hot and cold. The model is confirmed at the site assessment.
Do you cover villas on Koh Phangan?
Yes. Koh Phangan is served from the Koh Samui service centre.
I want a system for my own home. Where do I buy one?
Residential systems are sold on the Minairal online shop, shop.minairal.com. For rental villas and managed portfolios, request a site assessment.
Where we install.
Three service centres with parts in stock, in Koh Samui, Phuket and Hua Hin, and service coverage in Bangkok and Koh Phangan.
Other sectors.
Read further.
From the blog.

Drinking Water for Villas in Thailand
Drinking water for villas in Thailand: what mains, well, rainwater and trucked supplies can carry, and how to make drinking water in the villa with Air or Pure.
Read the article
Koh Samui water shortage: what it means for hotels and villas
Koh Samui makes about 16,000 m3 of water a day against 34,000 m3 of demand. What rationing means for hotels and villas, and how to make drinking water on site.
Read the article
Atmospheric Water Generator for Home in Thailand: Which Model, What It Costs
An atmospheric water generator for your home in Thailand: how it makes drinking water from air, Air Top, Air Stand and Air Stand Pro prices, sizing and upkeep.
Read the article
Tell us about the villas. We come back with a specification.
Number of villas, their locations, guests per villa and the water supply at each. You receive a configuration, a capacity and a maintenance plan for the portfolio.