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Posts by Jonathan Mousdell

Calculating Heating and Cooling Loads: What’s the Difference?

By Jonathan Mousdell | April 15, 2026 | 0
Calculating Heating and Cooling Loads

Calculating heating and cooling loads requires understanding two opposite problems: heat gain in summer and heat loss in winter. Both must be accounted for in every complete HVAC system design.

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Why Revit Falls Short for Design Engineers

By Jonathan Mousdell | April 8, 2026 | 0
Why Revit Falls Short for Design Engineers

Revit handles modelling and documentation well, but design engineers still need better calculation tools.

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Internal Heat Gain: A Practical Guide for HVAC & Building Services Engineers

By Jonathan Mousdell | April 1, 2026 | 0
Internal Heat Gain

Everything you need to know about internal heat gain in your engineering designs — from occupants, lighting, and equipment loads to sensible heat, latent heat, and SHR worked examples.

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Design-Build Contracts: Advantages, Risks & How HVAC Contractors Can Win Bigger

By Jonathan Mousdell | March 30, 2026 | 0
Design-Build Contracts

Design-build contracts can improve margin and control, but they also increase liability. Here’s how smart contractors reduce risk.

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What Is the Revit Tax? How Autodesk’s BIM Platform is Eating Your MEP Margins

By Jonathan Mousdell | March 27, 2026 | 0
Revit Tax

The hidden MEP workflow cost that’s eating your profit, and how to get it back.

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