Conservation & Heritage Issue 52 Summer/Autumn 2026 - Flipbook - Page 86
and barely at all midweek. A one-size-fits-all system ignores
these differences and tends to deliver the same disappointing
outcome: crippling running costs and a building that is never
quite comfortable.
plant placement and electrical upgrades are planned around
the building, so that the historic fabric and the visual amenity
of the space are protected rather than sacrificed. Wherever
possible the design favours reversible interventions, working
through existing service routes and voids so that little or
nothing of the original structure is permanently altered,
which is exactly the principle conservation bodies look for.
A successful retrofit begins somewhere else entirely. Before
any hardware is specified, Elite maps the building’s unique
thermal characteristics. That means a meticulous feasibility
study, precise room-by-room heat-loss calculations and a
genuine understanding of how and when the building is
occupied. Only then is a system designed around it. The
benefit is considerable. A properly designed system delivers
the right amount of heat, precisely where and when it is
needed, rather than heating an empty space for hours on
the assumption that more output solves every problem.
In practice, that often means zoning the system so that
heat follows occupancy, warming a single chapel or gallery
for a midweek event rather than the whole building, and
scheduling output around services, opening hours and
exhibitions. Wasted energy falls away, and the installation
finally delivers the efficiency promised on paper. In heritage
work the design is not a preliminary to the project. It is the
project.
This is where the partnership matters. A successful heritage
project needs an installer who is comfortable working
alongside conservation architects and within Historic
England’s guidance, and who treats listed building consent
and the wider approvals process as part of the job rather than
an obstacle to it. Elite Renewables works hand in hand with
Stiebel Eltron, whose dedicated planning and specification
teams understand the particular demands of these buildings.
Together they produce schemes that committees and
conservation officers can approve with confidence, because
the case for protecting the fabric is built into the design from
the very first survey.
The next step
Decarbonising and upgrading our national heritage is entirely
achievable. It simply has to be treated as the highly specialised
engineering challenge it is, rather than a commodity
installation dropped into an extraordinary building. Elite
Renewables and Stiebel Eltron specialise in exactly this:
commercial heritage integrations across churches, museums,
civic and educational buildings and historic estates, designed
to respect the past while securing the future. Trustees, estate
managers and councils can contact Elite Renewables via
www.eliterenewables.co.uk, call 020 8706 0056 or email
tenders@eliterenewables.co.uk. Stiebel Eltron can be
reached via https://www.stiebel-eltron.co.uk
High-capacity, high-efficiency, low-noise heat pumps
Historic buildings make two demands that are difficult to
reconcile. They need serious output to warm large, draughty
volumes, yet they call for near-total quiet, whether for
worship, for the concentration of a reading room or a gallery,
or for the controlled environment a collection requires. This
is precisely why Elite Renewables specifies Stiebel Eltron for
these applications. The units are highly efficient, extremely
reliable, capable of genuine high output and virtually silent
in operation. For the larger loads typical of these buildings,
several units can be arranged to work together, scaling
output to demand while keeping each individual machine
well within its quiet, efficient operating range.
Specifying premium, commercial-grade equipment of this
calibre allows a building to be brought up to temperature
without the intrusive acoustic footprint that rules cheaper
plant out of sensitive sites. Stiebel Eltron’s high-temperature
range is particularly valuable in older buildings, where it is
rarely possible or desirable to strip out existing emitters; the
ability to deliver higher flow temperatures allows much of
the original heating infrastructure to remain in place. Just
as importantly, German-engineered units of this standard
can satisfy the strict acoustic and visual requirements set by
conservation officers and, where churches are concerned, by
Diocesan Advisory Committees, none of whom will accept
anything that compromises the character or the calm of a
protected building.
Navigating approvals and preserving the fabric
For most trustees and estate managers the real concern
is not the technology but the works. The image that gives
them pause is of pipework chased through ancient stone and
cabling run across a listed interior. A sympathetic, expert
design exists precisely to address that concern. Pipe routing,
I
Conservation & Heritage Journal
84
I
