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
Choosing the Best Protection: Anti-Freeze Valves vs. Glycol in Heat Pump Systems
Discover the pros and cons of anti-freeze valves vs. glycol in heat pump systems. Make informed decisions...
Meeting the Future with the New Build Heat Standard: Scotland’s Blueprint for Energy-Efficient Homes
Learn all about Scotland's New Build Heat Standard: mandating energy-efficient homes with heat pumps. Embracing a greener...
Exploring Hydronic Design Software with h2x Engineering
Dive into hydronic design software with h2x! Understand the formula, optimise performance, revolutionise HVAC design, and more.
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...
Cascade Heat Pumps: Redefining Heating for Large Spaces
Discover the innovation of cascade heat pumps in our blog below! See how they redefine heating for...
How To Calculate Air Velocity In A Duct
Learn how to accurately calculate air velocity in ducts for HVAC systems. Get essential tips and techniques...
The Power and Potential of Hybrid Heat Pumps
Discover the transformative potential of hybrid heat pumps! Learn how they enhance home comfort, efficiency, and sustainability...
Maximising Efficiency: The Guide to Heating Degree Days for Heating Engineers
Discover how to maximise efficiency with Heating Degree Days for Engineers. Learn valuable insights to optimise heating...
The Deakin University and HCAA Peak Flow Rate Calculation Method
Discover the efficiency of the Deakin University and HCAA hydraulic method for peak flow rate calculation.
A Guide To Air Duct Pressure Drop Calculation For Optimal HVAC Performance
Discover the science behind efficient HVAC systems! Explore h2x Engineering's insightful blog on Air Duct Pressure Drop...
How To Calculate Water Demand
Learn how to calculate the water demand in a system based on the local standard's requirements and...
Understanding Mixing Valves, Tempering Valves, and TMVs
Step into the realm of plumbing valves and find out everything you need to know about mixing...
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: Which Should You Choose?
Compare Hazen-Williams and Darcy-Weisbach for pipe friction loss, accuracy, simplicity, fluid type, and when to use each...
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...



















