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H2X’s Revit / AutoCAD Integration

Our mission at H2X is to improve the quality of plumbing designs. When we started our journey, there were two key things we knew we must do...

H2X's Revit / AutoCAD Integration draw calculate draft

Our mission at H2X is to improve the quality of plumbing designs.

When we started our journey, there were two key things we knew we must do:

  1. Automate calculations; and
  2. Integrate with drafting software such as Revit and AutoCAD.

To achieve this, we were faced with two options:

  1. Integrate calculation software into Revit and AutoCAD; or
  2. Create standalone calculation software and export into Revit and AutoCAD.

Going with Option 1, integrating calculation software into Revit and AutoCAD would mean:

1. A drafter would be designing the system

This is not ideal as drafting and designing are two completely different skill sets.

Some people know how to do both, but how well, and how many people know both well?

2. The design can not be undertaken until the architect shows everything in their model

As we know, the architect delays showing the information we require for as long as possible.

Due to the time-consuming nature of Revit, this leaves it too late to complete a good design.

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3. When the architect’s Revit model changes, the drafter/designer needs to do a lot of rework

Architects change their design weekly. Fortnightly if you are lucky.

Keeping up to date with these changes when you have physical connections between the pipes in the plumbing model and the sinks in the architectural model would be hugely time-consuming.

Comparing that to Option 2, creating standalone calculation software and exporting into Revit and AutoCAD, this means:

1. The engineer designs the system

The plumbing design is done on top of the architect’s PDF by the plumbing engineer.

This means the layout and calculations are done fast, easily, and early in the design phase.

2. The engineer can assess different design options with ease

Because of the speed and ease of designing on a PDF, the engineer is able to provide their client with various different options.

Local hot water plant or central hot water plant?

6.5ft/s (2m/s) with stainless steel pipes or 4 ft/s (1.2m/s) with copper pipes?

Ring main on the cold water reticulation?

3. The engineer provides the drafter with a 3D model of the design

Once the design is complete, a 3D Revit model can be exported and sent to the drafter.

This saves back and forth between the engineer and drafter, and ensures no critical information gets lost in translation between the two.

For the reasons noted above, we progressed with Option 2.

This means that rather than following the traditional workflow of drawing the plumbing system layout, using spreadsheets to do the associated calculations, and then copying the layout with the results in to Revit.

draw calculate and drafting of h2x workflow

Using H2X significantly simplifies the workflow. This leads to increased productivity and higher quality of calculations.

As shown below, you are still required to draw the plumbing system layout. However, as the layout is drawn in our software, the built-in smarts allow the calculations to be automated and allow a 3D Revit model to be automatically generated.

draw calculate and draft graph

How did this turn out? Well, you can see it for yourself in the video below:

If you are interested in meeting with our development team to see H2X’s Revit export in a live demo, please get in touch with us at

h2x: All-In-One Tool for Calculating, Designing, Estimating, and Paperwork

h2x Exports

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Award-Winning Heating Design

"Using h2x was pivotal, allowing for precise heat loss calculations, pipe sizing and flow rates for each room.

This level of detail ensured that the heating load accurately matched each space's requirements, minimising energy waste and maximising comfort.

The strategic placement of heat pumps and careful sizing of pipework were crucial in maintaining minimal pressure drops over an 18-metre distance."

Greengate, UK

"I would estimate over the length of this project, I have spent 50% less time designing than I would on our previous software.

The ability to output the design straight into Revit assisted clash detection and coordination."

Salon Republic, USA

"The quality of the designs saw significant improvement with the adoption of h2x."

"The software offers precision through detailed result outputs and advanced options for efficient pipe sizing, allowing heating engineers to optimise based on parameters like maximum velocity and pressure drop."


What Installers Say

What Consultants Say

A game changer for the humble plumber. Incredible.

Brad Winkel

Director at Queenstown Plumbing

Brilliant, simple and easy to use. Game changer.

James Major

Director at Hubb

Big time game changer to the industry!

Viv Jude

Director at UHC

Incredible software! Super user-friendly and allows you to save so much time.

Devni Gamage

Engineer at DMA

h2x is great software, our company use it nearly every day. It is easy to use with direct conversion from h2x to Revit.

Callum Craig

Engineer at WDE

h2x is fantastic software. It is very easy to use and the ability to output to Revit is a fantastic time saver.

Joe Kirrane

Engineer at MEP