HVAKR vs H2X
H2X is a modern cloud MEP tool with deep plumbing and hydraulics roots — and you draw every room and duct by hand. HVAKR is purpose-built for HVAC: its AI reads your floor plans and extracts spaces, then runs ASHRAE/ACCA load calcs, sizes equipment, and ships reports.
Head-to-head
Where HVAKR Wins
HVAKR AI
AI Reads Your Floor Plans
In H2X you draw and trace every room, duct, and pipe by hand, or import a LiDAR room scan — and reviewers describe the floor-plan drawing as clunky. HVAKR AI reads an uploaded PDF floor plan and extracts spaces, areas, and boundaries for you to review — then the engineer stays in control of every number.
- AI space takeoff from PDF floor plans
- No drawing or tracing every room by hand
- Engineer reviews and approves every change
HVAC-First
Built for HVAC, Not Plumbing-First
H2X began as a plumbing pipe-sizing tool and grew into a broad MEP suite — plumbing, drainage, gas, fire, heating, ductwork, stormwater — where HVAC is one of many disciplines. HVAKR is purpose-built for the HVAC engineering loop: spaces, zones, loads, airflows, duct sizing, and reports, all in one focused workflow.
- Spaces → zones → loads → equipment → ducts
- Depth in HVAC, not spread across disciplines
- A workflow that matches how MEP engineers design
US Standards
Purpose-Built for ASHRAE & ACCA
H2X is rooted in AU/UK practice — its calculations are CIBSE-verified and BS EN / AS1668-based, with ASHRAE offered as one selectable option. HVAKR is built from the ground up for US mechanical design: ANSI/ASHRAE/ACCA Standard 183 and ASHRAE 62.1 are the native framework, not a setting.
- ASHRAE 183 and 62.1 as the default methodology
- Built for US codes and workflows
- Third-party-audited calculation engine
Real-Time Collaboration
Your Whole Team, Live
H2X shares projects externally through read-only Design Share links, and it does not offer real-time co-editing. In HVAKR, multiple engineers work the same live project at once — takeoff, loads, and review stay in sync, and reviewers always see the current state.
- Multiple engineers editing one live project
- Reviewers see the latest state instantly
- No file versions to reconcile
Mechanical Engineers On Tap
HVAKR is more than software. Every plan includes support from mechanical engineers who design HVAC for a living — so when a hard load-calc or system-selection question comes up, you get an answer from someone who has solved it before. Where other tools offer software support, HVAKR offers engineering support.
Talk to a real engineer
Stuck on a load calculation, a system selection, or a tricky space? Our mechanical engineers help with the actual engineering — not just which button to press.
Answers in hours, not days
Fast, human product support and onboarding that gets your whole team productive in a day.
Expertise included
Mechanical engineering help comes with your subscription — no consulting contract and no extra fee.
Moving to HVAKR is simple
Keep your ASHRAE and ACCA methodology, and let AI handle the part H2X makes you do by hand — tracing the floor plan. Most teams run their first project in HVAKR the same day they sign up.
- 1
Start a free trial
Sign up in your browser and create your first project — nothing to install.
- 2
Upload a floor plan
Let HVAKR AI take off spaces from your PDF plans instead of drawing every room by hand.
- 3
Run loads and ship reports
Calculate loads, size equipment, design ducts, and export branded PDF and CSV reports.
Frequently asked questions
How is HVAKR different from H2X?
Both are modern cloud tools, but H2X is a broad, plumbing-first MEP suite where you draw and trace every room by hand, and HVAC is one of several disciplines. HVAKR is purpose-built for HVAC, with AI that reads your PDF floor plans and extracts spaces, and a native US ASHRAE/ACCA load-calc workflow.
Do I have to draw the floor plan by hand?
Not in HVAKR. Its AI reads an uploaded PDF floor plan and extracts spaces for you to review. In H2X you draw and trace each room, duct, and pipe manually, or import a LiDAR scan.
Are HVAKR’s load calculations standards-compliant?
Yes. HVAKR follows ANSI/ASHRAE/ACCA Standard 183 and ASHRAE 62.1 methodology, and the calculation engine is backed by third-party audits. H2X is rooted in CIBSE / BS EN / AS1668 practice with ASHRAE as one selectable option.
Does HVAKR do plumbing, drainage, and gas like H2X?
No — HVAKR is focused on HVAC: load calculations, equipment sizing, duct design, and reports. If you need multi-discipline plumbing, drainage, gas, and fire design in one tool, H2X covers more disciplines; HVAKR goes deep on HVAC instead of spreading across all of them.
Can my whole team work on the same project at once?
Yes. HVAKR projects are shared live and multiple engineers can edit the same project simultaneously. H2X shares externally through read-only Design Share links and does not offer real-time co-editing.
What does HVAKR cost?
HVAKR is a per-seat subscription with a free trial. See our pricing page for current plans.
HVAC design that starts with your floor plan
Start a free trial and let AI take off your spaces — then run ASHRAE/ACCA load calcs, size equipment, and ship reports.