Room-by-room pipe routing
Tight, even pipe paths help the overlay floor deliver strong output across usable space.
Sustainable comfort. Greener futures.
Variotherm Overlay UFH
Variotherm Modular Floor is a specialist 20mm overlay UFH system with 11.6mm pipework routed through gypsum boards for efficient renovation heating.
MCS Certified
Quality. Safety. Trust.
RECC Member
Consumer protection you can trust
Manufacturer Training
Expertise you can rely on
Open System Design
Flexible, efficient, future ready
Support & Maintenance
Here when you need us
Benefits
Measured, practical reasons this service may suit the right property and design.
20mm gypsum board construction.
11.6mm pipes can be routed around obstacles.
100mm turrets allow close pipe spacing.
Compatible with engineered timber, laminate, Luxury Vinyl Tile (LVT), ceramic tile, stone and carpet subject to design.
Installation detail
Real AquaTherma underfloor heating examples showing pipe layout, floor build-up and practical routing before the finished floor goes down.
Profix Plus overlay option
A practical low-build-up route where height, existing finishes and disruption matter.
Screed UFH comparison
AquaTherma can compare overlay and screed systems against heat loss, response and floor finish.
How it works
Straightforward explanations of the technical decisions that shape comfort, efficiency and long-term performance.
Built for renovations
The slim board construction helps introduce water-based UFH over existing floors without the level of disruption associated with digging out a floor.
High output at lower flow temperatures
Close pipe spacing and upper-layer pipe position can help deliver strong output per square metre, supporting efficient heat pump operation.
Floor finish matters
Final performance depends on the chosen floor covering, heat loss and installation detail, so the build-up is checked as part of the design.
Process with AquaTherma
A predictable route from enquiry and design through to quotation, installation or support, commissioning and aftercare.
1
Consultation
We discuss the property, project stage, comfort goals and the systems already being considered.
2
Heat loss survey
The design starts with the building, its fabric, heat loss and practical installation constraints.
3
Design and specification
Heat pump, UFH, MVHR and controls are specified to work as one low temperature system.
4
Installation
AquaTherma can install directly or provide commissioning support where appropriate.
5
Handover
The system is checked, commissioned and explained so settings and comfort are understood.
6
Ongoing support
Servicing and support help keep filters, fluids, controls and system performance in good condition.
Common questions
Answers to the practical questions that come up before committing to a renewable heating project.
Do heat pumps work with radiators?+
Yes, when the radiators, heat loss and flow temperatures are designed correctly. AquaTherma focuses on low temperature design so radiators, UFH and hot water work efficiently as a complete system.
Is underfloor heating better for a heat pump?+
Underfloor heating is often an excellent partner for heat pumps because it can deliver comfortable heat at lower water temperatures. The detail still needs to be designed around the property and floor construction.
What is SCOP?+
SCOP means Seasonal Coefficient of Performance. It is a seasonal efficiency measure that describes how much heat a heat pump delivers compared with the electricity it uses.
Do you cover my area?+
AquaTherma works across Lincolnshire, Nottinghamshire, Cambridgeshire, Norfolk and Leicestershire. If you are nearby and unsure whether your project is covered, send your postcode and the team will confirm.
Are you MCS certified?+
Yes. AquaTherma is MCS certified and is also a RECC member.
Do you work with developers and heating engineers?+
Yes. AquaTherma works with homeowners, self-builders, developers and plumbing or heating engineers, including design and commissioning support where appropriate.
Related services
Underfloor Heating (UFH)
Comfortable, efficient UFH design and supply for private clients, housebuilders and heating engineers.
Learn moreAir Source Heat Pumps
Compact, efficient renewable heating for homes and projects where low temperature design is handled properly.
Learn moreServicing and Maintenance
Practical servicing for air and ground source heat pumps, UFH systems, cylinders, filters, settings and system health.
Learn moreReady to discuss variotherm overlay ufh?
Share your plans, property details or project stage and AquaTherma will recommend the right next step.