Heating system choice
Wet UFH vs Electric UFH in a Liquid Screed
Both can be embedded in a liquid screed, but they behave very differently on running cost, response time and which rooms they suit best.
Work out which UFH type suits your rooms
Name, phone, email — we'll reply the same working day with a fixed price.
Or call our landline on 01392 237700
Wet (hydronic) UFH circulates warm water through pipework laid within the screed, usually fed from a boiler or heat pump. Electric UFH uses resistive heating mats or cables laid at a shallower depth, drawing power directly from the mains.
Both can be embedded successfully in a liquid screed, but the running cost, responsiveness and ideal room size differ enough that the choice shouldn't be made on installation cost alone.
This is the comparison we walk through with clients deciding between a whole-house wet system and electric UFH in a single bathroom or small extension.
Wet UFH vs electric UFH
| Factor | Wet / Electric |
|---|---|
| Running cost | Lower, especially with a heat pump / Higher per kWh |
| Install depth in screed | 30–75mm typical / Can be very shallow, 10–15mm |
| Response time | Slower to heat and cool / Fast response |
| Best suited to | Whole-house or large open areas / Single rooms, bathrooms, small extensions |
| Upfront install cost | Higher — manifold, pump, pipework / Lower for small areas |
Where electric UFH in screed makes sense
- A single bathroom or en-suite retrofit
- Small extensions where running a wet zone isn't cost-effective
- Projects without a heat pump or boiler capacity to spare
Work out which UFH type suits your rooms
Tell us the rooms and heating source available and we'll advise on wet or electric UFH before your screed is specified.
Underfloor heating screed
- Liquid screed flows around heating pipes
- Cover depth checked before pouring
- Commissioning and moisture checks before floor coverings
Where wet UFH is the better long-term investment
- Whole-house new builds, especially with a heat pump
- Larger open-plan areas where running cost adds up quickly
- Projects where long-term energy bills matter more than install cost
How each gets embedded in the screed
- 1
Wet pipework
Clipped to a grid on insulation, pressure-tested, then encapsulated by the liquid screed pour.
- 2
Electric mats
Laid or fixed at shallow depth, tested for continuity, then thinly screeded or levelled over.
Want a professional to handle it?
Related services
Covering Devon, Somerset and West Dorset
Wet UFH vs Electric UFH in Screed — questions we get asked
Keep reading across the site
Work out which UFH type suits your rooms
Tell us the rooms and heating source available and we'll advise on wet or electric UFH before your screed is specified.