If you're planning a renovation or building a new home, underfloor heating is a smart, energy-efficient way to heat your space. But one big question many homeowners face is: Should I choose electric or water underfloor heating?
At Fastwarm, we’re here to simplify that decision. In this guide, we’ll walk you through the key differences between electric and water (also known as wet or hydronic) systems, including cost, installation, and performance.
Electric Underfloor Heating: Quick & Easy
Best for: Smaller spaces, retrofits, and single-room projects like bathrooms or kitchens.
✅ Pros:
Fast and easy to install – especially suitable for DIY projects.
Low profile – ideal for spaces where you can’t raise the floor height much.
Quick heat-up time – great for occasional-use rooms.
No need for a boiler – plugs straight into your electrical system.
❌ Cons:
More expensive to run (depending on electricity rates).
Less suitable for whole-house heating – best used in individual rooms.
Water Underfloor Heating: Efficient & Long-Term
Best for: Larger areas, new builds, and whole-home systems.
✅ Pros:
Lower running costs – especially when paired with a heat pump or efficient boiler.
Excellent for large spaces – even heat distribution across big rooms.
Long-term energy efficiency – can save more in the long run.
❌ Cons:
More complex to install – typically requires a plumber and may involve screeding.
Higher upfront cost – more materials and labour involved.
Better suited to new builds – retrofitting can be tricky and disruptive.
Installation Comparison
| Feature | Electric | Water |
|---|---|---|
| Install time | 1-2 days | 3-5+ days |
| Ideal for | Retrofits, small rooms | New builds, large spaces |
| Floor height impact | Minimal | Moderate (due to pipes/screed) |
| Professional help | Often DIY | Usually required |
| Running costs | Higher | Lower |
💡 Fastwarm’s Expert Tip:
Not sure which system is right for you? Think about how often the space is used, what flooring you’ll have, and your long-term energy goals.
Take the Guesswork Out: Use Our Expert Support
Choosing the right system doesn’t have to be complicated. At Fastwarm, we offer free technical support, custom design services, and easy-to-install kits for both electric and water underfloor heating.
Whether you’re a homeowner, installer, or builder – we’ve got the solution for you.
📞 Got questions? Call our team today or visit www.fastwarm.com to get started.
