Insulated Pool

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swimming pool insulation

Compass Pools has developed an innovative insulated swimming pool design that we refer to as a passive pool. As an experienced specialist in swimming pool design and installation, we are always looking for advances in technology that provide a better quality product for our customers. This led us to investigate different methods of pool insulation and eventually create our passive pools.

The concept of the passive pool originates from a trend in housebuilding where something called a ‘passive home’. A passive home is achieved using highly sophisticated thermal insulation that allows for comfortable living temperature to be achieved with minimal heating required. One important aspect of the passive home is that it is made vapour-impermeable so ventilation can be mechanically operated with heat recuperation. Using our construction background and experience, we have utilised these ideas to develop the passive pool.

What are the features of the passive pool?

Our passive pools have a range of specific structural features:

  • Highly insulating – the polyurethane insulation material we use is CFC-free and has a thermal conduction coefficient of 0.026 W/mK
  • Closed cells – minimum 90% according to the Remington method
  • Compression stress of 250 kPa at 10% deformation
  • Density – roughly 40kg per m³
  • Chemically inert – this ensures the insulating properties of the material do not weaken over time as a result of chemical or organic degradation
  • Waterproof outer wall – a dual-component waterproof layer is applied to the outside of the insulation package to prevent diffusion and osmosis
  • Closed structure of the inner wall of the pool – following the same vapour-impermeable character of passive home designs, this also ensures that the pool is perfectly sealed. The Compass passive pool uses Bi-Luminite® coating technology, combined with a sealed ceramic core

What sets the Compass passive pool apart?

The features of Compass passive pools set them aside from other insulated pools. Firstly, there is no thermal bridging, which means that heat is not able to escape through gaps in the insulation and it is 100% airtight. With panelled insulation systems heat is able to escape.

With the Compass design, the insulation is just 10mm from the water which means that there is no thermal mass to heat up. Concrete actually takes two-and-a-half times as much energy to heat than water, so when traditional insulation is placed on the outside of a concrete shell there is no benefit to the water until the concrete has been heated.

Additionally, the insulation is not behind a liner or tiled over, so there is no risk of damage through indentation from impact.

Better for the environment

At Compass Pools we strive to match our commitment to superb value to customers with our respect for the environment. Alongside the solar roll-out cover, the CFC-free insulation layer makes sure that heat loss is kept to a minimum. This means that you don’t need to use lots of energy constantly re-heating your pool. The energy needed to heat the passive pool is drawn from the outside air with a high-performance heat pump. With an outside temperature of between 15°C and 25°C, for every kWh consumed from the grid, between 5 and 6 kWh are put into the pool water. This keeps your carbon footprint down and also saves you money on your energy bill.

If you’re interested in having an insulated swimming pool installed in your home, please don’t hesitate to contact our friendly team today.  

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