H2X Engineering: Plumbing Design Calculation Tool For Engineers

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We help engineers create highly accurate designs.

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What do you design?

Heating Design

Heating / Hydronic

Domestic Water Design

Domestic Water

Duct Design

Duct / Ventilation

Heat Loss Calculations

Heat Loss Calculations

Chilled Water Design

Chilled Water

Underfloor Heating Design

Underfloor Heating

MVHR Design

MVHR

Fire Protection Design

Fire Protection

Stormwater Design

Stormwater

Gas Design

Gas

Wastewater Design

Wastewater

Built for:

Design Software For Consultants
Consultants

Compliance and accuracy.

Design Software For Contractors
Contractors

Speed up project timelines.

Design Software For Manufacturers
Manufacturers

Get your products specified.

Loved by Engineers

★ ★ ★ ★ ★ Brilliant, simple and easy to use. Game changer.

James Major Director at Hubb

★ ★ ★ ★ ★ 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

★ ★ ★ ★ ★ A game changer for the humble plumber. Incredible.

Brad Winkel Director at Queenstown Plumbing

★ ★ ★ ★ ★ 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

★ ★ ★ ★ ★ 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

★ ★ ★ ★ ★ The software is very easy to use. The heat load calculation function is particularly impressive.

Toinpre Amaegbe Senior Mechanical Engineer at ROCMEP

★ ★ ★ ★ ★ We've been using h2x for our mechanical design work and are consistently impressed. Highly recommended.

Edward Jones Mechanical Engineer at Noquet Building Services

★ ★ ★ ★ ★ The software is fantastic, it's a real time saver and we can install with confidence knowing we have all our maths correct.

Matt Little Heating Manager at ECO Providers

★ ★ ★ ★ ★ h2x go above and beyond to ensure customer satisfaction. They are flexible, responsive, supportive, and collaborative.

Joshua Musgrove Director at Eco-Nexus Engineering

★ ★ ★ ★ ★ Wins us more, better jobs. Accurately models complex systems in an easy to use interface. Outstanding customer service.

Nick McPhee Director at Duo Heating & Renewables

★ ★ ★ ★ ★ Fantastic software, great results and very user-friendly producing great designs and reports.

Timothy Rudd Director at TJR Heating & Cooling

★ ★ ★ ★ ★ I started using h2x recently and I am amazed how easy it is to produce perfect results every time.

Gary Law Technical Consultant at EDF Heat Pumps

Watch how h2x helped 
Leon's engineering team

From start to finish: accurate calculations, smooth workflows, and an easy review process.

See our other case studies

Why Teams Choose h2x

Built by Engineers,
 for Engineers

Created by industry experts frustrated with traditional processes, h2x was designed with a deep understanding of engineering workflows and challenges.

★ ★ ★ ★ ★

Customer focused, easy to communicate with, and invested in my success! The team go above and beyond.

Joshua Musgrove Director at Eco-Nexus

h2x for Engineers h2x Accurate Calculations

Highly Accurate

h2x delivers detailed, accurate calculations that are backed by CIBSE's independent verification to give engineers confidence in their results and ensure every design meets industry standards.

★ ★ ★ ★ ★

The real-life temperatures aligned perfectly with the design calculated by h2x. This is an excellent result and a verification of the accuracy of h2x.

Alan Hall Head of Programs Plumbing and Gas Fitting at TAFE

Easy to Learn

h2x is intuitive, backed by 150+ video resources, live training sessions, free learning tools, and a dedicated team ready to get you onboarded quickly. Plus, enjoy 24/7 support and live demonstrations to help you hit the ground running.

★ ★ ★ ★ ★

I've recently started using h2x and it's probably the most user-friendly software 
I've ever used.

Jamie Donaldson Construction Manager

h2x Easy To Learn

What Makes h2x Special

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Custom Settings

Define your own standards and system parameters.

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Accurate Calculations

Calculate precise sizes for your whole engineering system.

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Intuitive Design Tools

Speed up the drawing process with our smart design tools.

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Product Database

Access manufacturer-verified data for specifications.

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Automated Estimating

Generate detailed material lists and cost estimates.

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Drawing Exports

Export designs to PDF or integrate with CAD/Revit.

Try Designing in our Software

h2x Here To Help

We're here to help!

Free Trial and Demonstrations

Live Training Sessions

150+ Video Resources

Free Learning Tools

24/7 Instant Support

Watch Demo Try For Free

h2x Insights

Calculating Heat Loss Heating Design

Heating

How To Calculate Heat Loss

Read about what heat loss is, why it's important, how heat losses occur, and most importantly, how you can calculate it simply and easily.

Read the Article How To Size Water Pipes Domestic Water Design

Water

How To Size Water Pipes

See why pipe sizing matters, what issues poor sizing causes, how to avoid them, and most importantly, how to size pipes step by step.

Read the Article How To Calculate Duct Size Duct Design

Ventilation

How To Calculate Duct Size

Learn what duct sizing is, why it matters, how airflow is affected, and most importantly, how to calculate it quickly and accurately.

Read the Article Bill of Materials & Reports Example Bill of Materials & Reports HVAC & Plumbing Design Drawings, Plans & Exports Example Drawings, Plans & Exports HVAC & Plumbing Design Heat Load Calculations Example Heat Load Calculations HVAC & Plumbing Design System Sizing Example System Sizing HVAC & Plumbing Design Training, Support & Resources Example Training, Support & Resources HVAC & Plumbing Design Heat Loss Example Heat Loss - Heat Engineer Software Installation Plans Example Installation Plans - Heat Engineer Software Client Drawings Example Client Drawings - Heat Engineer Software Bill of Materials Example Bill of Materials - Heat Engineer Software Reports Example Reports - Heat Engineer Software System Sizing Example System Sizing - Heat Engineer Software

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