How to Plan the Perfect Wet Underfloor Heating System (Without the Guesswork)
Planning a wet underfloor heating (UFH) system used to involve complex manual calculations and technical guesswork. Whether you are a professional installer, an architect, or a homeowner, precision is everything. We’ve built the Professional Wet UFH System Builder to take the stress out of the process, helping you generate a bespoke, zero-waste kit list in seconds.
Why Precision Matters in UFH Design
Accuracy in the planning stage saves time and resources on-site. Our builder moves beyond rough estimates to provide a precise blueprint based on your layout, giving you the confidence that you have the precise components required for a professional-grade installation from day one.
For the Trade: Save time on site and stop carrying ‘just-in-case’ stock.
For Homeowners: Ensure your system is perfectly sized for your heat pump or boiler efficiency.
For Architects: Get instant material lists and cost estimates for project tenders
Technical Precision vs. Site Guesswork
Every project has its own unique footprint, and getting the quantities exactly right is the first step to a great install.
Standard Guesswork
vs Zero-Waste Precision
How to Use the UFH Direct System Builder
Step 1: Input Your Dimensions
Enter your room length and width. Our builder allows you to exclude areas like kitchen islands or fireplaces, ensuring your heat output is only where needed.
Step 2: Customise Your Kit Essentials
Select your manifold type, pump sets, and preferred thermostat. Whether you need a simple dial stat or the latest Heatmiser neoStat V3, the builder adjusts your bespoke kit list in real-time to match your requirements
Step 3: Complete Your Installation Kit
Don’t get caught short on-site. We’ve included all the optional professional extras—from pipe decoilers and tacker guns to water pressure test kits. Our builder ensures you have every tool needed for a flawless, high-quality installation
Step 4: Generate Your Bespoke Kit List
With a single click, our engine applies 20 years of UFH expertise to your project. You’ll instantly receive a fully compiled, zero-waste kit list featuring every component required for a professional installation — from Solid Brass Nickel Plated Manifolds to PERT-AL-PERT pipe and Eurocone couplers
From Dimensions to Professional CAD Design
While our system builder provides a precise material list based on your measurements, we also offer optional professional CAD designs for those who want a complete installation blueprint. This detailed layout plan provides a clear schematic for pipe layout, helping to ensure correct loop lengths for manifold balancing and system efficiency.
Expert Underfloor Heating Support Across the UK
While our professional builder is incredibly precise, we know that complex projects often benefit from a local expert’s eye. UFH Direct provides specialist supply and technical support across the entire UK. Whether you are in Cornwall or the Highlands, our team is ready to assist with your installation
Underfloor Heating Planning: Frequently Asked Questions
How accurate is the UFH Direct System Builder?
Our builder is designed using over 20 years of industry expertise and matches the exact flow rates and material requirements used in our professional CAD designs. By excluding non-heated areas like kitchen islands, it provides a significantly more precise material list
How does the builder prevent pipe shortages on-site?
The builder uses a ‘Zero-Waste’ algorithm based on 150mm pipe centres and real-world flow rates. By allowing you to input the exact heated area (by excluding islands and units), it calculates the precise coil lengths needed. This means you don’t end up with useless 40m offcuts or, worse, running 5m short at the end of a day’s install.
Is the system builder compatible with both Boilers and Heat Pumps?
Yes. Our calculator is optimized for 150mm pipe centres, which is the industry standard for both high-temperature gas boilers and low-temperature renewable systems like Air Source Heat Pumps. This ensures your floor has the correct thermal mass to operate efficiently regardless of your primary heat source
Can I use the kit list for project tenders and specifications?
Absolutely. The generated kit list provides a full breakdown of every component, from the manifold port count to the specific thermostat models. This makes it an ideal tool for specifying UFH requirements in project tenders, ensuring that all contractors are quoting on the same high-quality, professional components
Technical Standards & References
To ensure high levels of performance and reliability, the UFH Direct System Builder uses design logic aligned with UK industry best practices. Our tool is built to help your project achieve maximum efficiency and home comfort by focusing on:
Standardised Component Selection: Ensuring every manifold and pump set is perfectly matched to your specific heated area.
Energy Efficiency: Calculated for 150mm pipe centres to support modern, low-temperature heating systems.
Even Heat Distribution: Helping you plan for a system that provides consistent comfort without cold spots or wasted energy
Ready to Plan Your Professional Installation?
The first step to any underfloor heating project is getting your quantities right. Our system builder helps you organise your requirements based on your actual floor dimensions, providing an itemised kit list for your project. Enter your measurements below to see exactly what you need