Installation of an Inground Spa

Support – In grounds

Installation of a plumbed shell (in-ground spa) requires excavating, then connection of equipment to shell.

Endless® Spas do not install spas / pools.

All installation work is carried out by independent contractors.

All payment for such works are to be made payable directly to contractors.

The customer can engage the services of any qualified tradespeople of your choice or appoint a qualified builder to project manage the total installation including decking, tiling landscaping and fencing

Inground Installation with Equipment Remote

Example of spa on steel frame and equipment
Freestanding Installation on Steel Frame
Spa Supported By Concrete Slab

Spa Supported by Decking

Equipment Placement

  • Sufficient area should be reserved for the equipment.
  • Usually arranged by the customer.
  • A regular installation requires an area 2.3m x 1m.
  • The surface must be stable, eg concrete slab or pavers, and have suitable drainage to ensure water does not pool around equipment.
  • The equipment should be installed within the required distances from the spa / pool to ensure optimum performance. (Typically up to 6 metres)
  • Allow space for servicing.

Picture depicts wall mounted installation of gas heater, controller and salt chlorinator. The power is supplied directly from the switch board into the controller – no power points.

Additional Information

  • *Most control boxes have an IPX3 rating enabling it to be installed outside, however, it must be installed outside the spa/ pool zone.  This pool zone extends 3.5m from the edge of the spa / pool.
  • 40 amps direct wire supply is required for an eight channel control box
  • Air switches require individual power points


Electrical Connections

Depending on equipment provided, an electrician is required to install a controller system and supply sufficient power.

Control systems typically include either air switches or a radio remote control box.*

Amperage required for Spa Pools is typically between 25- 40 amps; Swim Spas may require an additional 30 amps. (Depends on model chosen)

Typical Isolation Switch



Gas Connections

Gas heaters must be installed on a non-combustible surface. There are special requirements for indoor installations. A new gas line is usually required and is pressured to suit typically between 120 Mj – 175 Mj

HX Gas Heater HiNRG Gas Heaters