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HVAC Card File

Reliable and Efficient Building Services Design and Implementation

The HVAC Card File brings together industry-developed knowledge on building services engineering—covering design, implementation, maintenance, and energy efficiency in buildings.

How should HVAC systems be designed and dimensioned?
Which solutions ensure functionality and energy efficiency?
What requirements and risks are associated with different systems?
How can occupant wellbeing and indoor comfort be supported?

Service licenses

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Up-to-Date Information at Your Fingertips

Continuously Updated Content

The content evolves continuously alongside industry developments.

Efficient Search

Find the right guidance quickly for practical situations, including AI-assisted search.

Access to Archive

Return to previously used or older guidance via the archive.

Developed Together with the Industry

The content of the HVAC Card File is produced through committees of the Rakennustietosäätiö Foundation.

A broad group of building services professionals is involved, including:

  • Designers
  • Contractors
  • Clients and developers
  • Authorities
  • Equipment manufacturers

The content is based on:

  • Practical experience from projects and construction sites
  • Research-based knowledge and standards
  • Shared industry consensus on effective solutions

The result is a reliable knowledge base supporting technically sound and sustainable solutions.

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Alvari, the AI assistant here to help you.

Alvari searches for information on your behalf from card indexes and RYL services to which you have access.

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When Building Services Work, the Building Works

The HVAC Card File brings together proven solutions for building services engineering.

When design principles and sizing guidelines are correct, you can focus on design, execution, and quality—without unnecessary uncertainty.

The HVAC Card File does not replace the expertise of designers; it supports it by providing a solid technical foundation.

Comprehensive Guidance

A wide range of instructions covering building services systems:

  • Heating, water supply, and drainage systems
  • Ventilation and indoor climate
  • Energy efficiency and system performance
  • Design, sizing, and implementation principles

Also includes guidance on system integration and lifecycle performance.

Regulations

Key building services regulations in one place:

  • Legislation
  • Authority requirements
  • Guidelines

Easy to find and use in both design and construction.

Product Information for Design Support

Product cards provide information on equipment, components, and systems.

They support:

  • Design work
  • Comparison of alternatives
  • Selection of appropriate solutions

How Professionals Use the HVAC Card File

HVAC / Building Services Designer

Supports system sizing, selection, and design of functional solutions. Helps ensure technical and energy-efficient performance.

Contractor

Clarifies implementation methods and supports compliant installation work.

Site Supervisor

Provides a reference framework for evaluating system functionality and execution quality.

Client and Developer

Helps assess solutions and supports decision-making in building services selection.

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