HOYA Ondol Australia
HOYA Ondol Australia
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Installation guide

Installing HOYA Ondol Panels

Two ways to lay the same 26 mm heated floor: B-Panels throughout, or A-Panels across the open floor with B-Panels where the pipe turns. Nothing is poured and nothing has to cure.

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At a glance

  • MethodsB-Panels throughout, or A-Panels across the open floor with B-Panels at the turns
  • Finished height26 mm for every panel, plus 1.7 mm reflective foil underneath
  • CoversA 6 mm cover panel on each B- and C-Panel; three cover strips on each A-Panel
  • Pipe16 mm PE-RT, pressed into the channels
  • LayoutFollows the plan supplied for your floor

Two methods, one floor height

Both methods use the same 26 mm panels and the same pipe, and they can be combined in one house. Your layout plan sets the panels for each room.

Labelled cutaway of a HOYA Ondol B panel floor on a concrete slab. From the bottom: existing slab, 1.7 mm reflective foil, 20 mm B panel with 16 mm PE-RT pipe in its channels, 6 mm cover panel, then 14.2 mm engineered floating timber. Heating layer 27.7 mm; finished height 41.9 mm over the slab, plus any underlay.

B-Panel method

B-Panels throughout. Each is a 20 mm base panel with straight and curved channels, and a 6 mm cover panel fits over it once the pipe is in. One panel type carries the pipe along the straight runs and around every turn.

Compare the A-, B- and C-Panels
Labelled exploded view of a HOYA Ondol A panel floor on a concrete slab. From the bottom: existing slab, 1.7 mm reflective foil, 26 mm A panel with 16 mm PE-RT pipe in its straight channels, cover strips (shown lifted), then 14.2 mm engineered floating timber. Heating layer 27.7 mm; finished height 41.9 mm over the slab, plus any underlay.

A- and B-Panel method

A-Panels carry the long straight runs across the open floor. Each is one 26 mm panel, and three cover strips press into its channels once the pipe is in. B-Panels go at each end, where the pipe turns back.

Both methods use C-Panels where several pipes run side by side, such as at the manifold.

Before you start

What you'll need

  • The layout plan for your floor
  • 1.7 mm reflective foil
  • B-Panels with their cover panels (6 per box, 1.5 m²)
  • For the A- and B-Panel method, A-Panels with their cover strips (8 per box, 2 m²)
  • Any C-Panels shown on the plan
  • 16 mm PE-RT pipe on an uncoiler
  • The manifold, fitted by your plumber before the pipe goes down
  • A rubber mallet, and a circular saw or jigsaw for cutting panels to fit

Check first

  • The slab or subfloor is clean, dry and flat, with no high spots or loose debris
  • The manifold position matches the layout plan
  • Doors and thresholds allow for the 26 mm panel plus your floor covering
  • Panels are stored flat, and laid at room temperature

Step by step

Choose your method. Steps 2 to 4 are different; the other steps are the same. Follow the layout plan for your floor at every step.

Workers in red vests lay reflective foil for HOYA Ondol B panels in a room with large glass doors and windows.

1 Lay the reflective foil

Plan the pipe layout and clean the floor, then roll out the 1.7 mm reflective foil across the whole area.

Installer laying HOYA Ondol B-Panels side by side over reflective foil

2 Lay the base panels

Start along a wall and lay the base panels side by side across the room, keeping the channels accurately aligned. Cut panels to fit at the walls, and lay C-Panels where the plan shows pipes running close together.

Installer pressing heating pipe into the channels of HOYA Ondol B-Panels

3 Press in the pipe

With the manifold fitted first, roll out the 16 mm PE-RT pipe hand over hand so it does not twist, and press it into the channels. Each circuit starts and finishes at the manifold. Do not kink the pipe on tight turns, and leave enough at each end to connect.

Installer fitting cover panels over the heating pipe on HOYA Ondol B-Panels

4 Fit the cover panels

Snap a 6 mm cover panel onto each base panel and tap it down with a rubber mallet.

Plumber in a HOYA Ondol vest working on the floor heating manifold in a wall cabinet, with white pipe circuits running down to the floor.

5 Connect the circuits to the manifold

A licensed plumber connects each circuit to the manifold with the correct fittings, taking care not to kink the pipe.

Installer in HOYA Ondol orange workwear and cap connecting an outdoor air-source heat pump beside a brick house, with tools laid out on top of the unit.

6 Connect the heat source

A licensed plumber connects the manifold to the heat pump or boiler. Any electrical work is done by a licensed electrician.

Empty room with the heated floor finished, before furniture goes in

7 Test and commission

The plumber pressure-tests the system and records the result, then commissions the heat source and controls. For engineered timber, complete the heat-up procedure before the boards go down.

Timber floor installed over HOYA Ondol

8 Lay the floor covering

Float the floor covering over the cover panels. Check the list below for what can go on top.

Workers in red vests lay reflective foil for HOYA Ondol B panels in a room with large glass doors and windows.

1 Lay the reflective foil

Plan the pipe layout and clean the floor, then roll out the 1.7 mm reflective foil across the whole area.

Installer laying HOYA Ondol B-Panels next to A-Panels

2 Lay the A- and B-Panels

Lay B-Panels along the walls where the plan shows the pipe turning back, then fill the open floor with A-Panels, keeping the straight channels accurately aligned. Cut panels to fit at the walls, and add C-Panels where pipes run close together.

Heating pipe in the straight channels of HOYA Ondol A-Panels, looping through B-Panels at the end

3 Press in the pipe

With the manifold fitted first, roll out the 16 mm PE-RT pipe hand over hand and press it along the straight channels of the A-Panels and round the curved channels of the B-Panels. Do not kink the pipe, and leave enough at each end to connect.

Installer tapping cover strips into HOYA Ondol A-Panels with a rubber mallet

4 Fit the covers

Press three cover strips into the channels of each A-Panel, and snap a cover panel onto each B- and C-Panel. Tap them down with a rubber mallet.

Plumber in a HOYA Ondol vest working on the floor heating manifold in a wall cabinet, with white pipe circuits running down to the floor.

5 Connect the circuits to the manifold

A licensed plumber connects each circuit to the manifold with the correct fittings, taking care not to kink the pipe.

Installer in HOYA Ondol orange workwear and cap connecting an outdoor air-source heat pump beside a brick house, with tools laid out on top of the unit.

6 Connect the heat source

A licensed plumber connects the manifold to the heat pump or boiler. Any electrical work is done by a licensed electrician.

Empty room with the heated floor finished, before furniture goes in

7 Test and commission

The plumber pressure-tests the system and records the result, then commissions the heat source and controls. For engineered timber, complete the heat-up procedure before the boards go down.

Timber floor installed over HOYA Ondol

8 Lay the floor covering

Float the floor covering over the panels and covers. Check the list below for what can go on top.

What can go on top

Floor coverings float over the covers. Never glue flooring to the panels, or drive nails, staples or screws into them.

  • Engineered timberFloating installation only, to our timber flooring requirements.
  • Hybrid, SPC and vinylFloating, to the flooring manufacturer’s requirements.
  • Tiles and stoneOn a 6 mm tile board over the panels. Check with us before ordering.
  • CarpetCheck with us before ordering.
  • Solid timberOnly with HOYA Ondol Australia’s prior written approval.

With timber on top, keep the timber surface at or below 27 °C and raise and lower the temperature gradually. Check the timber supplier’s own conditions before the boards are ordered.

Add the thickness of your floor covering and any underlay to the 26 mm panel when you plan door and threshold heights. See floor heating build-up heights.

Floor covering samples in timber-look and grey finishes, fanned out on a timber floor

Both methods on real projects

Large room in the O'Connor ACT renovation with white hydronic pipe loops laid in black HOYA Ondol panels and a coil of pipe on a dispenser

O’Connor, ACT

B- and C-Panels

A renovation of about 150 m², with B- and C-Panels under a solid timber floor and a heat pump as the heat source.

See the O’Connor project
Sunroom with white heating pipe laid in loops through the channels of the HOYA Ondol panels

Daylesford, Victoria

A-, B- and C-Panels

A retrofit over an existing concrete floor: 67.2 m² heated with about 443 m of 16 mm PE-RT pipe, under a timber floor, with a heat pump.

See the Daylesford project

Installation and warranty

The panels can be laid by a builder, carpenter or flooring installer, following HOYA Ondol’s installation instructions and the panel and pipe layout designed for your floor, working with your hydronic installer. Manifold, heat pump or boiler connections must be made by a licensed plumber, and electrical work by a licensed electrician. In some states, laying the heating pipe itself is also licensed plumbing work, so check with your installer. Warranty requires licensed connections. This does not limit your rights under the Australian Consumer Law.

Watch the installation videos

Planning a heated floor?

Send us your floor plan and we’ll quote the panels, pipe and manifold for your rooms.

Get a quote
Call 1300 137 407