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Resources

Latest Blogs

Buffer Tanks

Buffer Tanks 101: What They Are, How They Work, How To Size Them & Do You Even Need One?

Learn all about buffer tanks: what they are, how they work, worked examples, sizing tips, installation, maintenance, and more for optimal HVAC system efficiency. Most importantly, we’ll explain why you likely don’t need one.

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Hot Water Recirculating Pump

How Does A Hot Water Recirculating Pump Work?

Learn how a hot water recirculating pump works, their benefits, types, installation tips, energy savings, and maintenance for increased home comfort!

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Air Source Heat Pump

How Do Air Source Heat Pumps Work?

Find out how air source heat pumps work, their costs, benefits, and much more. Learn if they are the right heating and cooling solution for your home today!

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Latest Charts

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 Calculation for optimal airflow design.

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Selecting The Right Radiator Size (Chart Included)

Discover the perfect radiator size for your space with our comprehensive radiator size chart. Achieve optimal heating efficiency today.

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Understanding Flow Coefficient: A Guide for Valve Sizing

Learn how flow coefficient (Cv) impacts valve sizing. Explore their calculation, importance in fluid dynamics, applications, and more in our guide today!

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Latest Formulas

Hydronic Design Software

Exploring Hydronic Design Software with h2x Engineering

Dive into hydronic design software with h2x! Understand the formula, optimise performance, revolutionise HVAC design, and more.

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Calculate Duct Size

How To Calculate Duct Size: A Comprehensive Guide

Learn how to calculate duct size effectively with h2x’s comprehensive guide below. Optimise airflow and efficiency within HVAC systems!

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How To Calculate Air Velocity In A Duct

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 in our comprehensive guide below!

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Latest Spreadsheets

how to use pipe volume calculator 1 pipe size internal

FREE Pipe Volume Spreadsheet

Access h2x’s free pipe volume spreadsheet to streamline calculations, optimise design, and enhance efficiency in piping projects.

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H2X PIPE SIZING SOFTWARE

H2X vs Spreadsheets

Since its launch back in 1985, Microsoft’s spreadsheet application Excel has gone on to become recognised as the leading program for the organisation and calculation of data.

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Sizing a Ring Main hardy cross method ring main inlet

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 pipe network is in a ring main (also known as a closed-loop) formation, the calculations are extra difficult.

This difficult calculation is very common for fire hydrant ring main size designs and the ring main design calculations.

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Latest Calculators

Air Duct Velocity Calculator

FREE Duct Size Calculator

h2x Tools Duct Size Calculator Calculate ductwork accurately and easily using our free Duct Size Calculator to ensure…

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Air Duct Velocity Calculator

FREE Air Duct Velocity Calculator

h2x Tools Air Duct Velocity Calculator Calculate air velocity flowing through ducts easily using our free Air Duct…

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Pipe Volume Online Calculator

FREE Pipe Volume Calculator

h2x Tools Pipe Volume Calculator Calculate the volume of water in a pipe easily using the Pipe Volume…

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Mechanical
Plumbing
Fire

Resources

Buffer Tanks 101: What They Are, How They Work, How To Size Them & Do You Even Need One?

Learn all about buffer tanks: what they are, how they work, worked examples, sizing tips, installation, maintenance, and more for optimal HVAC system efficiency. Most importantly, we’ll explain why you likely don’t need one.

View resource

How Does A Hot Water Recirculating Pump Work?

Learn how a hot water recirculating pump works, their benefits, types, installation tips, energy savings, and maintenance for increased home comfort!

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How Do Air Source Heat Pumps Work?

Find out how air source heat pumps work, their costs, benefits, and much more. Learn if they are the right heating and cooling solution for your home today!

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FREE Duct Size Calculator

h2x Tools Duct Size Calculator Calculate ductwork accurately and easily using our free Duct Size Calculator to ensure…

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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 for your heating projects!

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Exploring Hydronic Design Software with h2x Engineering

Dive into hydronic design software with h2x! Understand the formula, optimise performance, revolutionise HVAC design, and more.

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Mechanical Ventilation

h2x New Feature: Duct Sizing Prepare for an exciting unveiling of h2x Engineering’s latest feature!   Our team…

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How To Calculate Duct Size: A Comprehensive Guide

Learn how to calculate duct size effectively with h2x’s comprehensive guide below. Optimise airflow and efficiency within HVAC systems!

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FREE Air Duct Velocity Calculator

h2x Tools Air Duct Velocity Calculator Calculate air velocity flowing through ducts easily using our free Air Duct…

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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 large spaces with efficiency and reliability.

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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 in our comprehensive guide below!

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Heating Updates

h2x Major Update: Introducing New Heating Design Features! Get ready for an exciting product update from h2x Engineering!…

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