The h2x Blog
We publish practical guides, top tips and trends, latest news, and more stories related to the mechanical, plumbing and fire industry.
Latest Articles
Water Storage Tanks
A water storage tank is a container used to store and hold water. Tanks are typical for...
Quality Control in Engineering Designs
Engineers working in design know that quality control places significant demands on their work. From pipe sizing...
‘Erosion Corrosion’ in Water Systems
Erosion corrosion is a type of corrosion that occurs when water flows over a metal surface. The...
H2X: The Plumbing System Design Software That Helps You Design Compliantly
Plumbing system compliance relies on an all-important bedrock of technical calculations. However, the workflow followed to undertake...
Recirculation Pumps
A complete guide to sizing Recirculation Pumps. Learn the calculations, know when they are required, and ensure...
What Does BIM Mean for Engineers?
Engineers have long sought techniques to decrease project costs whilst increasing productivity and quality. Building information modelling...
How is BIM Impacting the Construction Industry?
Anyone involved in a construction project knows that a lot of work goes into even the simplest...
Booster Pumps
Booster pumps increase the water pressure within a system. As a rule of thumb, you will need...
Why is Residual Pressure Important?
Calculating Residual Static Pressure is the minimum pressure that you can expect in the water system. It...
Why is Static Pressure Important?
Static pressure is the maximum pressure that you can expect in the system. It is caused by...
4 Hevacomp Alternatives in 2026
h2x is a modern day Hevacomp: easy to learn, fast to design, incredibly accurate, and offers a...
Water Flow Rate Calculations
The flow rate calculation is the basis for all of your water system calculations; it informs: Water...
Featured (Must-Read Blogs)
How To Calculate Duct Size: A Comprehensive Guide
Learn how to calculate duct size effectively with h2x's comprehensive guide below. Improve airflow and efficiency within...
What Are Cv and Kv? Flow Coefficient Formulas & Valve Sizing Explained
Learn how flow coefficient (Cv) impacts valve sizing. Explore their calculation, importance in fluid dynamics, applications, and...
Calculating Heat Loss: A Step-by-Step Guide
Learn how to calculate heat loss for HVAC system design.
Hazen-Williams vs. Darcy-Weisbach
The Hazen-Williams and Darcy-Weisbach equations have their merits and limitations, mainly relating to their ease of use...
How to Size Water Pipes
To size water pipes correctly is critical for the performance of your design. Below, we will explore...
The Importance of Calculating Residual & Static Pressure
Water pressure is an essential aspect of every plumbing system. Here, we explain the importance of calculating...
Highlights (Free Downloads)
Ductulator Chart: Practical Guide for Mechanical Engineers (Free Download)
Duct size directly affects noise, energy, and layout, which is why you should use the Ductulator Chart...
FREE Pipe Volume Spreadsheet
Access h2x's free pipe volume spreadsheet to streamline calculations, optimise design, and enhance efficiency in piping projects.
Hardy Cross Method – Sizing a Ring Main (FREE Spreadsheet)
Flow rate and friction loss in a pipe network system can be difficult to calculate. When the...