Engineering · Design · Delivery
HVAC engineering & design
Heating, ventilation and air conditioning designed around building use, comfort and energy performance.
01
Design starts with the building
HVAC engineering connects the needs of occupants with the physical and operational requirements of the building. TAFY considers heating, ventilation and air conditioning as coordinated systems, with load calculations and system selection supporting the design process. The right starting point is the building brief, not a preselected equipment solution.
Use, occupancy, envelope information and project constraints influence the engineering choices. For an existing building, the available systems and the intended changes also need to be understood. These inputs help define the design assumptions before layouts and equipment arrangements are developed.
02
Systems and coordinated layouts
Heating and cooling capacity, ventilation routes and plant arrangements must be considered alongside architecture and the other services. Ductwork, pipework and equipment access all have spatial consequences. Coordinating these requirements early helps the project team assess feasible distribution routes and technical areas.
HVAC design also considers system efficiency and operation. Technical calculations, coordinated drawings and specifications should communicate how the selected arrangement supports the project objectives. Where BIM is used, model review can help identify clashes and clarify the interfaces with structure, electrical systems and other building services.
03
Information for your project brief
Provide the building use, project stage, location and available architectural drawings. Include known occupancy needs, comfort objectives, space constraints and any existing system information. Explain whether the project is a new building, refurbishment or an intervention in an occupied property.
For tender enquiries, identify the required design scope and deliverables. The first discussion establishes what information is available, which decisions remain open and how HVAC coordination should connect with the wider design team.
Scope to discuss
- Heating, ventilation and air conditioning
- Load calculations and system selection
- Equipment space and distribution layouts
- Coordination with architecture and MEP systems
Design questions
What information is needed before HVAC design?
Building use, architectural information, project stage and known operational requirements establish the starting assumptions. Missing inputs should be clarified before detailed design.
How does HVAC relate to BIM?
HVAC models help review routes and equipment interfaces. They support coordination alongside the calculations and technical documentation required for the design.
Your project
Let’s clarify your project brief.
Describe the building, project stage and engineering services you need. We can discuss the input information, scope and next steps.

