Welcome to Green Gas & Energy’s Knowledge Hub
Where real heating know-how lives.
Whether you're trying to make sense of heat loss, want to know what good system design actually looks like, or you're wondering if weather compensation is worth it — you’re in the right place.
This is where we share everything we know, from how boilers behave in the real world to how to size radiators properly, explain controls like a human (not a manual), and uncover the truth behind energy-saving myths.
We’ve broken it all down into bite-sized, easy-to-follow sections — no jargon, no sales pitch, just helpful guidance from heating professionals who care about getting it right..
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A complete Guide To Heat-Loss and Why It Matters
Before we design a heating system, we figure out how much heat your home is losing — and why. It’s the foundation of everything.
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Domestic Hot Water System Design
From combi boilers to unvented cylinders — explore how to design a hot water system that actually delivers when you need it most.
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Central Heating System Design
Radiators, pipework, flow temperatures… designing a central heating system isn’t guesswork. Learn how to balance comfort, efficiency, and performance in every room.
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Heating Controls
On/off thermostats, smart controls, weather and load compensation — zone valves, discover how the right controls can save energy, cut costs, and keep your home perfectly comfortable