SHATCHI Nest Latest Mspa Portable Hot Tub Oval (Nest, 186cm x 125cm)

How long does it take to heat the water from cold?

The 1500W PTC heating system increases water temperature by 2-2.5°C per hour. From typical UK tap water temperature of around 15°C, it takes approximately 10-12 hours to reach the maximum 40°C. The heating rate depends on ambient temperature, wind conditions and whether you use an insulating cover. Using the spa cover and positioning in a sheltered location significantly improves heating efficiency.

What maintenance does the UVC sanitisation system require?

The UVC sanitisation system requires minimal maintenance as it operates automatically. The UV lamp should be replaced annually or after 9000 hours of operation for optimal performance. Clean the quartz sleeve monthly with a soft cloth to remove mineral deposits that can reduce UV transmission. The system works alongside the ozone generator and filtration to maintain water quality with reduced chemical usage.

Can this spa be used outdoors in winter?

Yes, the anti-icing system allows year-round outdoor use. When water temperature drops below 1°C, the heater automatically activates until reaching 3°C, preventing freeze damage. However, running costs increase significantly in cold weather due to heat loss. Consider using an insulating cover and windbreak to improve efficiency. The spa can handle temperatures down to -10°C with proper precautions.

How does the smart filtration system work?

The smart filtration automatically runs for 60 minutes every 4 hours when the spa is in standby mode. This maintains water cleanliness between uses without manual intervention. The 1800 L/Hr filter pump circulates the entire 550-litre capacity approximately 3 times per hour during filtration cycles. Replace the filter cartridge every 2-4 weeks depending on usage frequency and bather load.

What's included in the box and what additional items do I need?

The spa includes the inflatable tub, control unit, filter cartridge, repair kit, ground cloth and instruction manual. You'll need to purchase spa chemicals separately for water treatment. Consider buying additional filter cartridges, a thermal cover for energy efficiency and chemical starter kit. A level, stable surface is essential - concrete, decking or reinforced grass areas work best.

How much does it cost to run per month?

Running costs vary significantly based on usage, ambient temperature and local electricity rates. Expect £40-80 monthly for regular use in moderate weather. The 1500W heater is the main power consumer, running more frequently in cold conditions. Using an insulating cover can reduce costs by 30-40%. The massage system adds approximately £10-15 monthly if used daily for 30 minutes.

What's the difference between the three bubble jet speed settings?

Speed 1 (300W) provides gentle relaxation bubbles for quiet, peaceful soaking. Speed 2 (500W) offers moderate massage intensity suitable for stress relief and muscle relaxation. Speed 3 (720W) delivers intensive massage bubbles for therapeutic benefits and deep muscle tension relief. Higher settings create more noise but provide stronger therapeutic effects. Most users prefer speed 2 for regular relaxation sessions.

How do I know if the M-ONE auto inflation system is working correctly?

Press the bubble + up buttons simultaneously to activate auto inflation. The integrated gauge monitors air pressure and stops automatically at optimal levels. You'll hear the pump running and see the spa walls becoming firm. If inflation doesn't stop automatically, there may be a pressure sensor fault. Manual inflation is possible using the included accessories if the auto system fails. The spa should feel firm but not rock-hard when properly inflated.