Electric Underfloor Heating in Bathrooms: Is It Worth It?

Electric Underfloor Heating in Bathrooms: Is It Worth It?

Electric underfloor heating (UFH) is often seen as a modern luxury, especially in bathroom spaces where cold tiles are a common complaint.

While it sounds like the dream solution for stepping onto warm floors on chilly mornings, you really need to set aside the time to weigh out the investment and running costs.

Here’s a realistic look at what electric underfloor heating offers in bathrooms, when it makes sense to install, and what to consider before you start.

Is It Expensive to Run in Bathrooms?

One of the biggest questions surrounding electric UFH is the cost of running it. It typically uses around 150 watts per square metre. So, for a modest 2.5m x 2.5m bathroom (6.25m²), you’re looking at 0.9kW usage. At an electricity rate of around 27p per kWh, that’s about 24p an hour.

If it’s used smartly, i.e. just to take the edge off the cold while getting ready in the morning, for example, the cost isn’t too steep. With a good thermostat, the system will cycle on and off as needed, which helps keep the cost in check.

However, if left on continuously, the price can mount up quickly. For occasional comfort, it’s manageable. For constant heat, it can get expensive.

When Electric UFH Is Worth It and When It’s Not

Electric UFH really shines when it’s used as a supplementary heating source rather than the main one.

In bathrooms, where tile floors can be uncomfortably cold underfoot, it’s a game changer. It provides just enough heat to make the space feel more luxurious without taking over from your primary heating system.

On the other hand, if you’re thinking of using it as the sole heating method for the room, especially in a large or poorly insulated space, there may be more cost-effective solutions.

It’s also worth noting that electric systems aren’t ideal under carpeted floors (not that you would have this in your bathroom anyway) or in areas where access for repairs is difficult.

Many users have found them a nightmare to fix when faults develop and suggest considering a wet system instead if you’re looking for a whole-house solution.

What to Know Before You Start

Installing electric UFH isn’t just about rolling out a mat and calling it a day. There are a few things that will make or break the experience.

• Insulation matters. Fitting insulation boards under the heating system ensures that heat goes into the room rather than sinking into the subfloor. Skipping this step can lead to wasted energy and higher running costs.
• Use a self-levelling compound. Floating a self-levelling compound over the heating mat makes tiling far easier and ensures better coverage and protection for the wires.
• Wattage and layout. Know the wattage per square metre of your system and plan for how much area you’ll actually heat. Sometimes warming just the key zones like in front of the sink or shower  is enough.

Is Electric Underfloor Heating Right for Your Bathroom?

Ultimately, it depends on what you want from your space. If you’re after a touch of luxury and hate stepping onto icy tiles, then yes – it can be absolutely worth it.

When used occasionally and smartly, the cost is reasonable and the comfort is noticeable.

But if you’re aiming to heat the entire room long-term or want a low-maintenance, long-life solution, a wet system or traditional radiator may be a better fit.

Electric UFH in bathrooms isn’t for everyone, but it still has a place in a lot of homes lucky enough to afford it. It’s an upgrade that can genuinely improve day-to-day living.

Guest Article.