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
55% of Building Defects Attributed to Poor Design – are you at Risk?
A study found that human errors that lead to building defects are caused by: Poor workmanship; Poor...
How to Design Hot Water Recirculation Systems in High-Rise Buildings
Lets start with understanding the basics of hot water recirculation systems. Have you ever waited a long...
How to Design a Hot Water Recirculation System
Designing a hot water recirculation system can be one of the most challenging parts of the job...
The Evolution of Design Iteration
New technology enables architects to regularly and quickly iterate a building layout as they receive feedback from...
H2X’s Revit / AutoCAD Integration
Our mission at H2X is to improve the quality of plumbing designs. When we started our journey,...
7 Important Steps for Designing Pressure Reduction Valves
It is important to size a pressure reduction valve (PRV) to suit the flow rate that passes...
Our Mission of Overcoming Plumbing Design Defects
Whilst this cost does not always get repaid by the engineer, the price is paid in a...
Designing RPZ Backflow Prevention Valves
As an example, if you were connecting a potable water supply to the HVAC system, this would...
Gas Pipe Sizing in 4 Simple Steps
When undertaking gas pipe sizing, the pressure loss through the pipes cannot exceed the difference between the...
Prefabricate Your Design & Calculation Process
'Prefabrication' is a word that has positive connotations, and rightly so. The word associates with quality, efficiency,...
Sizing a Ring Main with a Diversified Flow Rate
It appears that sizing a ring main accurately is a black art within the industry that has...
We Need to Stop Using ‘Length’ as a Dead Leg Design Parameter
No matter what type of building you are designing, you will likely have a design parameter relating...
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...