Heating System Design
Complete Heating System Design — From Heat Loss to Final Layout
Aros designs heating systems from the property's heat demand rather than rules of thumb. Starting with room-by-room calculations, the agreed design can cover heat pump sizing, emitters, pipework, hydraulics and controls. We support retrofit and new-build projects for homeowners, installers and housing providers.
What's Included
End-to-end design, from calculation to installer-ready documentation.
Why It Matters
Designed for long-term performance, not just compliance.
Design decisions should support efficient operation and practical installation, with assumptions and site constraints made clear.
Who This Is For
Who We Work With
We provide independent, technically sound designs that prioritise long-term performance over short-term convenience.
Agreeing the design and handover
The required documentation depends on the project and agreed scope. Confirm whether you need heat loss reports, emitter schedules, equipment sizing, pipework details, schematics and control notes before design work begins.
Homeowners can supply drawings and specifications, including new-build plans. For installer-led desktop projects, complete site survey evidence is supplied by the installer. Installation and commissioning remain the installer's responsibility.
Changes to construction, layout, equipment or site conditions should be raised before installation so their effect on the design can be reviewed.
Common questions
Do you design heating for new builds?
Yes. Aros supports new builds as well as retrofit projects. Drawings, fabric specifications and proposed heating arrangements provide the starting evidence for agreeing the design scope.
Can you work with my installer?
Yes. Aros supplies the agreed independent design; your installer undertakes installation and commissioning and checks site conditions against the information used for design.
Is a heat pump always the right choice?
System choices depend on the property, heat demand and practical constraints. The assessment and agreed design consider the available evidence rather than assuming a particular product.
Related services
Ready to Start?
Let's get the design right before the install begins.
Whether you're an installer looking for a technical partner or a homeowner who wants it done properly — we're here to help.