Our Underfloor Heating Insulation Collection
Resonate ResoTherm EPS
An affordable and reliable choice for residential projects. Available in multiple thickness' Resonate ResoTherm EPS is designed to provide excellent insulation and improve system efficiency.
Benefits
- High heat output's with an option of aluminium foil facing
- Suitable for all types of 10mm / 12mm / 16mm UFH pipes. Multiple thickness’ available
- Excellent heat transfer
- Can be used as part of an acoustic floating floor system
Resonate ResoTherm Chip
Resonate ResoTherm grooved chipboard high performance boards are a cost effective solution for underfloor heating applications. They ensure stability and strength and are ideal for replacing existing floor boarding on timber joisted floors.
Applications: Designed for timber floors, ceramic tiles, carpet, vinyl and wet heating systems.
Benefits:
- High heat output, with foil facing and pipe centre options.
- Suitable for all types of 10mm, 12mm, 14mm & 16mm UFH pipes
- Faster response times - UFH pipes are closer to surface finish than traditional FFB (fit from below) installation
Resonate Heatdeck
Resonate Heatdeck underfloor heating boards are a low-profile, high-performance solution with precision CNC-routed channels for optimal heat distribution.
Available in 15mm, 18mm, and 25mm thicknesses, these dry-installation boards support various floor finishes—such as carpet, wood, and tiles, within just 24 hours, offering a faster alternative to wet systems. Designed for new builds and renovations, the boards efficiently transfer heat from the pipes to provide even, energy-efficient warmth throughout the room.
Applications: Concrete In-situ Floor and Solid Timber Joisted Floor
Benefits
- Efficient and fast transfer of heat
- Suitable for all types of 10, 12, 16mm pipework
- High heat retention
- Can be installed as an acoustic system on separating floors
- CNC routing options: Straights, circles, radius returns and universal
Cellecta XFLO
Cellecta XFLO are high compressive strength XPS floorboards and aluminium foil facing for added thermal diffusion. These boards are manufactured to suit the pipe diameter and spacing required to achieve the desired thermal output.
Benefits:
- High resistance to compression - 250, 300 & 500kPa
- Aluminium foil facing for improved heat diffusion
- Manufactured to suit pipe and output requirements
Why Buy From National Insulation Supplies?
We pride ourselves on offering:
- High-quality, trusted brands like Resonate and Cellecta.
- Competitive pricing with bulk discounts.
- Fast delivery within 2-7 days across the UK, depending on your delivery area.
Need help selecting the right product? Contact our team of experts today at 02030 045 451 or browse our collection online for more details.
Shop for underfloor heating insulation now and start improving your energy efficiency today!
Underfloor Insulation Tips & Expert Guides
-
![]()
How to Install Underfloor Heating Insulation
Why installing underfloor insulation is essential for ensuring your system works efficiently and effectively.
Frequently Asked Questions
Do I need insulation for underfloor heating?
Do I need insulation for underfloor heating?
Yes definitely! Insulation is crucial for underfloor heating as it prevents heat from escaping downward, ensuring it efficiently warms your room instead of the subfloor or ground. Without insulation, your system will use more energy, increase running costs, and heat less effectively. Proper insulation improves comfort, saves money, and ensures your heating system works as designed.
Why Choose Underfloor Heating Insulation?
Why Choose Underfloor Heating Insulation?
Investing in underfloor heating insulation ensures:
- Energy Efficiency: Prevents heat loss and reduces energy consumption.
- Even Heat Distribution: Promotes consistent warmth across the entire floor.
- Lower Heating Costs: Maximises system efficiency for long-term savings.
