Fit From Below Spreader Plate 150mm: add UFH without lifting floors (video guide)

The fit from below aluminium double spreader plate fixes to the underside of the floor deck between the joists. Add underfloor heating from a cellar or ceiling void without lifting the floorboards. Two omega channels hold two pipe runs.

Watch the full video and the quick version below, and download the data sheet and install manual for the exact specification.

Key facts

• Fixes under the deck, between the joists
• No need to lift the floorboards
• 2 omega channels for 2 pipe runs
• 150 x 1000mm plate, 0.5mm thick
• Takes 15mm or 16mm multilayer pipe
• Loops up to 100m

How to fit it

1. Screw each plate at 6 points, no closer than 40mm to an edge
2. Use screws shorter than the deck is thick
3. Leave 15mm between plate ends
4. Start each run 250 to 300mm from the wall
5. Pressure test all loops before the ceiling is closed up
6. Keep ceiling fixings clear of all pipework

Buy it

The Fit From Below Aluminium Double Spreader Plate (150mm) is available from MaxHeatUFH. Order by 12pm on a working day for next working day UK delivery. Trade customers see their trade price when logged in.

Planning a whole floor? Design your UFH system yourself in 3 minutes with MaxHeatUFH ProLoop and get an instant quick design and quote.