Heat Loss Calculations
Precision Heat Loss Assessments for Accurate Heating Design
Heating system sizing starts with an accurate heat loss calculation. Aros provides detailed room-by-room and whole-property calculations based on building fabric, dimensions, ventilation and design temperatures. We can work from suitable drawings and specifications or property survey evidence, supporting informed decisions about heat pump and emitter sizing.
What's Included
Comprehensive heat loss analysis tailored to your property.
Why It Matters
Why Accurate Heat Loss Matters
Incorrect calculations can lead to serious performance issues. Our calculations provide installers and housing providers with reliable, documented data to design systems with confidence.
Who This Is For
Who This Service Is For
We provide clear reports that can be used for design, compliance, and client communication.
Drawings, new builds and existing homes
Homeowners planning a new build can supply architectural drawings and fabric specifications. For existing homes, dimensions and evidence of construction, insulation, glazing and ventilation are needed; an on-site survey may be appropriate where these are incomplete.
Installers can supply complete survey information for desktop calculations. We review the available evidence and identify missing information and assumptions before agreeing the calculation scope.
Common questions
Is this the same as the free heat loss estimate?
No. The free estimate is an initial indication. A professional calculation assesses each room's fabric, dimensions, ventilation and design temperatures to inform heating design.
Can you calculate heat loss from new-build drawings?
Yes, where drawings and specifications provide the required information. Send the proposed layout, dimensions and fabric specifications so Aros can review the evidence and scope.
Can I commission heat loss calculations without a full system design?
Yes. Heat loss calculations are available as an independent service for homeowners, installers and housing providers.
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.