Plumbing 1 May 2023

Radiant Floor Heating

underfloor heating is a modern and energy-efficient way to heat your home. Here are some of the top benefits of this type of heating system.

Energy Efficiency

Underfloor heating systems use less energy than traditional heating systems because they operate at lower temperatures. This means lower energy bills and a smaller carbon footprint.

Comfort

Underfloor heating provides consistent, even heating throughout your home, without the draughts or cold spots you get from warm air heating. It also creates a more comfortable living space by reducing the amount of dust and allergens circulating in the air.

Design Flexibility

Underfloor heating is installed beneath the flooring, which means it doesn’t take up any wall space or detract from your home’s design aesthetic. It’s also compatible with a wide range of flooring types, including tile, hardwood, and carpet.

Durability

Underfloor heating systems are built to last and require little maintenance over their lifespan. The tubing used in these systems is durable and can withstand a range of temperatures without cracking or leaking.

Wet or Electric?

There are two quite different systems sold under the same name, and they suit different situations.

Wet underfloor heating runs warm water through pipes laid in or under the floor, connected to your boiler or heat pump. It is the more efficient option and the sensible choice for a whole floor or a new extension, because it runs at a low flow temperature that suits a condensing boiler well. It is also the more disruptive to retrofit.

Electric underfloor heating is a mat laid under the floor covering. It is far simpler to fit in a single room — a bathroom or a kitchen — but it is expensive to run for any length of time, so treat it as comfort heating underfoot rather than as the thing that heats the room.

What Goes Under It Matters

Underfloor heating only works properly if the floor is insulated beneath the pipes or mat. Without that, a good share of the heat goes downwards into the slab or the void, and the system spends its life fighting the ground. On a retrofit, that insulation layer is often the deciding factor in whether the job is worth doing.

The floor covering matters too. Tile and stone conduct heat well and suit underfloor heating best. Thick carpet and heavy underlay insulate against it, which is precisely what you do not want.

Floor Height and Doors

The practical catch on any retrofit. Adding insulation, pipes and a screed on top of an existing floor raises its level, sometimes by more than people expect. That has knock-on effects: doors need trimming, thresholds need reworking, and where a room opens onto a hallway you can end up with a step that was not there before.

On a ground floor being dug out and rebuilt anyway, none of this matters. Retrofitting into a finished room is where it becomes the deciding factor.

Slower to Respond

A floor takes considerably longer to warm up and cool down than a radiator. That is not a fault — it is how the system works — but it changes how you run the heating. Underfloor works best left on a steady low setting rather than switched on and off, which is the opposite of how most people use radiators.

Is It Right for Your Home?

Underfloor heating suits some rooms far better than others, and it is much easier to fit during a renovation than to retrofit into a finished room. It also works best with a well-insulated floor, so it is worth checking that before committing.

If you’re considering a new heating system for your home, consider the benefits of underfloor heating. It may be just the energy-efficient and comfortable solution you’re looking for.