Renovating historical buildings comes with unique challenges, especially when modern heating must be integrated without altering the original structure. During a recent refurbishment of a church in North Berwick, HORSTAD supplied and supported the installation of our diffuser plate underfloor heating system — a solution chosen specifically for its ability to fit between existing floor joists with minimal to no increase in floor height.
This project is a strong example of how diffuser plates can deliver efficient, discreet heating in heritage spaces where traditional UFH systems simply aren’t viable.
Why This Church Required a Specialised Heating Approach
Historic buildings are rarely straightforward when it comes to heating upgrades. In this church renovation, the project team faced several constraints:
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Existing timber joists that could not be altered
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A strict requirement to maintain original floor levels
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A need for an efficient heating system with even heat distribution
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Limited space for additional build-up or modern pipework layouts
Traditional wet underfloor heating — which typically requires screed or structural floor changes — was not an option. Radiators were also unsuitable due to uneven heat distribution and disruption to the building’s interior.
These challenges made diffuser plates the most appropriate and practical solution.
Why a Diffuser Plate Underfloor Heating System Was the Perfect Fit
The HORSTAD diffuser plate underfloor heating system is designed specifically for joisted floors, making it ideal for retrofits, refurbishments, and heritage projects.
Key advantages for this installation included:
1. Zero Additional Floor Build-Up
The heating pipes and aluminium plates sit within the joist structure, meaning the finished floor height remains unchanged — a crucial requirement for preservation projects.
2. Fast, Even Heat Distribution
The aluminium plates spread heat across a wider surface area, eliminating hot spots and delivering a consistent temperature throughout the space.
3. Lightweight, Low-Impact Installation
With no need for screed, heavy machinery, or structural modifications, the system integrates seamlessly into timber floors without compromising the building’s integrity.
4. Quiet, Invisible Heating
Perfect for churches and community buildings, diffuser plates provide silent, hidden warmth that maintains the aesthetic of the original interior.
How Diffuser Plate Underfloor Heating Works
A diffuser plate system consists of:
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Aluminium heat-spreading plates
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High-quality UFH pipe clipped into dedicated grooves
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Plates fixed directly to the tops of joists or battens
When warm water flows through the pipe, the aluminium rapidly distributes the heat across the floor area above, resulting in:
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Stable, efficient heat output
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Faster response times compared to other joist-based UFH solutions
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Improved energy performance
This makes it ideal for both modern homes and traditional buildings where structural changes must be kept to a minimum.
A Modern Heating Upgrade for a Historic Building
The North Berwick church now benefits from:
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Comfortable, evenly distributed warmth
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An invisible heating system that preserves the building’s original character
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Improved energy efficiency compared to old radiator systems
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A future-proof solution with long-term reliability
This installation demonstrates how diffuser plates allow heritage buildings to be upgraded to modern comfort standards without compromising their architectural value.
Why Installers Choose HORSTAD Diffuser Plate Systems
HORSTAD provides diffuser plate systems engineered for durability, consistent performance, and ease of install. Installers value:
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Precision-formed aluminium plates
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Optimal pipe contact for maximum heat transfer
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Compatibility with common joist spacings
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Fast installation with minimal tools required
For projects with height restrictions or timber floors, diffuser plates remain one of the most efficient and reliable UFH solutions available.
Transform Your Space with Us
Whether you’re working on a historic building or a new build, our underfloor heating systems are designed to meet your unique needs.
Get in touch with us today to learn more about how our solutions can enhance your project.
