From an architectural model to key
HVAC outputs in under 10 minutes
Built on EnergyPlus — the industry
standard for building simulation
Easily compare massing options,
envelope properties, and HVAC design
Owners and architects increasingly want their
engineering consultants to assess more design
options and HVAC systems, earlier in the
process. Sefaira Systems enables you to deliver
robust insight quickly and cost-effectively.
Provide data-driven input on key architectural
and HVAC decisions without spending a lot of
time and fee.
Sefaira Systems produces high-quality HVAC
sizing and energy results directly from
architectural Revit and SketchUp models,
enabling you to rapidly compare design options
and respond to architectural changes.
Sefaira Systems can help you deliver added value for you clients.
Create a case for better performance:
justify improvements to form and
envelope with HVAC sizing or
operational cost reductions.
Understand sizing implications of
owner specifications and HVAC
Identify the best overall solution by
studying the impacts of early design
and system choices.
No need to rely on "rules of thumb" or hard-to-
compare spreadsheets. Sefaira Systems uses the
industry-standard EnergyPlus engine and expert-
designed HVAC templates to deliver accurate results.
Sefaira Systems allow you to download EnergyPlus-
input files for validation or further analysis.
Sefaira Systems dramatically reduces the time required for early-stage HVAC design.
Turnaround time — from architectural model to good-quality HVAC information —
is typically less than 10 minutes.
Import SketchUp and Revit models
rather than rebuilding geometry — or
let us convert the model for you.
Templates of common system
types eliminate the need to spend
substantial time setting up individual
HVAC system models.
Compare massing options, envelope
properties and HVAC design choices
in a single interface, making it easy to
assemble the data you need.
Architects and owners are increasingly looking for
engineering consultants who can provide good
early feedback on system options, sizing, energy use,
and energy cost.
Sefaira Systems allows you to deliver on these
expectations and build lasting, productive
relationships with your clients.
We need early HVAC analyses done in ever-shorter
turnaround times and with an increasing number of
iterations. Sefaira Systems allows us to respond to our
clients’ needs and improve our customer relationships,
without challenging our own budget.
Stop recreating geometry: simply import
architects’ models from Autodesk Revit and
Trimble SketchUp for analysis.
No models? No problem. We’ll train your team
on how to quickly create models for import. Or,
you can send us geometry in any format and
we’ll get it working for you.
Quickly compare multiple building forms, HVAC systems, and efficiency measures.
Predefined (but customizable) HVAC templates
allow you to assess a wide variety of system
solutions without needing to manually configure
Sefaira’s super-fast cloud-based
deployment of EnergyPlus delivers
reliable results in seconds.
Plant Sizing: includes total and area
Zone Sizing: sizing for each zone in the building.
Peak Loads: viewable by floor and zone.
View the top contributors to identify
most effective strategies.
Energy and cost are key dimensions of
comparison for HVAC decisions. Sefaira
Systems provides annual energy use as well as
energy cost — calculated automatically from
our database of worldwide utility rates.
Choose from three types of zoning: one zone
per floor, automatic perimeter-core zones, or
customized room-by-room zones pulled directly
from your SketchUp or Revit model.
Specify internal conditions at the building level,
or on a zone-by-zone basis.
Use Response Curves to quickly optimize
envelope properties such as window-to-wall
ratios, glazing SHGC, R-values and shading.
Sefaira has taken a different approach from other modeling
software companies from Day One. Sefaira Systems is a
great step forward — it is a recognition of, and response to,
the way engineers work, and moves us towards greater A/E
integration at the project onset.