Integrating Units into the Architecture

Integrating heat pump units into the architecture starts with giving them a considered place in the design. Their position, proportions and relationship with surrounding materials influence how the finished building looks and how its external spaces work.

For architects and specifiers, the opportunity is to coordinate heating equipment with the façade, landscape and internal layout from the outset. A well-resolved installation can sit comfortably within the architectural composition while remaining accessible and able to perform as intended.

Include the heat pump in the concept design

Show the proposed outdoor unit on early plans and elevations. This makes its relationship with entrances, windows, terraces and neighbouring buildings visible while the layout is still flexible.

Review it from the places people will actually see it: the approach to the house, the main living room, the garden and the street. A service elevation may offer a suitable location, but it still needs coordination with access routes and adjoining properties.

Consider two or three candidate positions with the services designer. Record the reasons for choosing one, including visual impact, acoustic assessment, service routes and maintenance access.

That decision gives the wider team a location to design around. It also helps prevent a late change from disrupting paving, planting or the external material palette.

Model the full installation space

The product footprint is only part of the space required. Draw the equipment body alongside its manufacturer-defined installation clearances, maintenance space and relevant safety zones.

For example, the Kronoterm ADAPT 2 is available in the following size; 1150 mm wide × 1225 mm high × 715 mm deep. Those are body dimensions, rather than the overall space needed for installation.

Use the selected model’s current installation instructions to establish the surrounding space. Avoid transferring clearance assumptions from another model or manufacturer.

Include the base and finished ground level in the model. Their height changes the visible relationship between the unit, nearby walls and planting. Check that the drawings and visualisations show the same arrangement.

Work with the product’s appearance

A heat pump with a considered exterior can form part of the material composition of a building. Look at its colour, surface texture, panel arrangement and proportions alongside brickwork, timber, metalwork and glazing.

The Kronoterm ADAPT 2 range uses a minimalist casing and concealed hydraulic connections to create a clean external appearance. That provides a useful starting point for integration, although the connecting services still need careful detailing.

Specify the exact finish and confirm availability before including it in client presentations or tender documents.

A simple finish that relates to window frames or external metalwork can help the equipment sit within the overall palette. Check samples or official product photography alongside the proposed building materials.

Treat screening as a designed element

Screening can soften views of equipment, but it needs a defined technical brief. A decorative enclosure drawn without input from the services designer can create problems that only emerge during installation.

Agree the arrangement with the manufacturer before committing to a screen, canopy or recess. Establish the required airflow paths, clearances and access, then design the architectural element around them.

The MCS guidance on mitigating heat pump noise explains that corners and enclosed spaces can amplify sound. It also makes clear that mitigation measures must preserve safe operation and should be reviewed with the manufacturer.

Visual screening and acoustic screening need separate consideration. Timber slats may reduce the view of a unit while offering little acoustic benefit. If a barrier forms part of the acoustic assessment, its construction and position must follow that assessment.

Allow for mature planting, too. A location that is open on completion may become crowded as shrubs grow. Show planting limits and maintenance access on the landscape plan.

Detail the services and groundworks

The connections deserve the same attention as the equipment casing. Agree routes for insulated pipework, power and controls before the external finishes are fixed.

Where services enter the building, coordinate the penetration with the wall construction and the project’s weatherproofing and airtightness details. Identify which contractor is responsible for each part of the work.

Use the ADAPT 2 technical drawings to coordinate the actual connection positions and condensate drain. Confirm the drainage arrangement with the installer and civil or drainage designer.

Include the base, drainage and any trench routes in the external works package. Resolve these details before paving is laid so that the finished installation has a coherent relationship with the surrounding landscape.

Reserve space inside the building

Architectural integration extends to the indoor equipment. Agree the system arrangement before finalising utility rooms, cupboards or plant spaces.

Ask the services designer to identify the hydraulic unit, hot water storage and any additional equipment required for the selected system. Show the complete arrangement, including valves, connections and access for servicing.

Check the delivery route as well as the final location. Door openings, turns and changes in level can affect whether equipment can be brought into the building or replaced later.

If joinery conceals the installation, coordinate doors and removable panels with maintenance requirements. The internal layout should allow routine servicing without dismantling unrelated furniture or finishes.

Respond to the existing building

Renovations often offer fewer choices of location. Existing walls, drainage, gardens and internal circulation all influence the available options.

For historic buildings, Historic England’s guidance on installing heat pumps highlights the need to consider visual impact alongside a clear, unobstructed air path. It also discusses screening, subject to manufacturer requirements.

Review the effect of equipment and service routes on significant fabric and the building’s setting. Discuss proposals with the relevant conservation and planning officers where appropriate.

Establish the applicable permissions early. In England, the planning guidance published by Richmond Council illustrates how installation position, heritage constraints and other conditions affect permitted development eligibility. Requirements differ across the UK.

Carry the design intent into the specification

The tender information should explain how the installation fits into the building, rather than leaving its final appearance to site decisions.

Include:

• The selected model, dimensions and agreed finish.

• The approved location, orientation and finished levels.

• Installation clearances, access and any safety zones.

• Coordinated service routes, drainage and base details.

• Any screening, landscape or joinery requirements.

Require proposed substitutions or location changes to be reviewed against the architectural and technical requirements. An alternative unit may change the space, connections or acoustic assessment.

Before handover, compare the installation with the coordinated drawings and resolve any outstanding details.

Design the installation as part of the whole

Successful integration comes from a series of coordinated decisions: where the unit sits, how it relates to the material palette, how services reach it and how it will be maintained.

Bring those decisions into the design programme early and carry them through the specification and installation.

Contact KronoHP to discuss Kronoterm equipment, product dimensions and the technical information needed to integrate your selected system into the project.