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Understanding EN 12831: Why Room Heat Losses Don’t Match Building Heat Loss
A common source of confusion in heat loss calculations is why the sum of room heat losses exceeds the total building heat loss. This article explains how EN 12831-1:2017 intentionally applies worst-case assumptions at room level, while reducing ventilation losses at building level to avoid double counting internally retained heat.
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Heat Engineer Software Limited receives significant investment from energy transformation business Greenarc and appoints new CEO
Heat Engineer Software has secured a significant investment from Greenarc Limited. This strategic partnership will see both companies join forces to revolutionise the heating industry.
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The Warm Homes Plan: A Big Boost for Heat Pumps, But Delivery Is Key
The UK Government’s £15bn Warm Homes Plan signals strong ongoing support for heat pumps, energy efficiency and low-carbon heating. With ECO4 extended to December 2026, installers gain clarity and breathing space — but successful delivery will depend on clear funding routes, consistent rules and high-quality installations.
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Understanding EN 12831: Why Room Heat Losses Don’t Match Building Heat Loss
A common source of confusion in heat loss calculations is why the sum of room heat losses exceeds the total building heat loss. This article explains how EN 12831-1:2017 intentionally applies worst-case assumptions at room level, while reducing ventilation losses at building level to avoid double counting internally retained heat.
Read MoreHeat Engineer Software Limited receives significant investment from energy transformation business Greenarc and appoints new CEO
Heat Engineer Software has secured a significant investment from Greenarc Limited. This strategic partnership will see both companies join forces to revolutionise the heating industry.
Read MoreThe Warm Homes Plan: A Big Boost for Heat Pumps, But Delivery Is Key
The UK Government’s £15bn Warm Homes Plan signals strong ongoing support for heat pumps, energy efficiency and low-carbon heating. With ECO4 extended to December 2026, installers gain clarity and breathing space — but successful delivery will depend on clear funding routes, consistent rules and high-quality installations.
Read More
Update on Heat Loss calculations
Motive to update our software is to align with the MCS online tool calculator for MIS 3005-D that utilises EN 12831:2017 and to include the option for an air permeability value to be entered from a Pulse or blower door test result.
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Understanding Heat Loss Requirements for Oil-Fired Heating Systems - A Guide for Plumbers and Heating Engineers
When it comes to installing oil-fired heating systems — such as kerosene boilers — one of the most important design considerations is accurately calculating the property’s heat loss.
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