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When creating or editing a material palette in Heatpunk, you have the option to create custom materials. This includes custom walls, floors, roofs, doors, windows and radiators.  Custom materials To create a custom material, first start by creating a materia...

For each Heatpunk project you will need to use a material palette. This palette defines the u-value and thickness of the walls, doors, floors, ceilings that make up the property you're modelling. You can create default palettes usable on any project via your m...

When you create a project, you will be prompted to select a material palette. This palette determines the composition of the walls, floors, windows, doors and radiators that can be used within a project.  Click on each palette to preview what materials are se...

This guide covers an update coming to Heatpunk UK April 27th 2026. Read more about it here. View the old guide here.  The first step in a project is to create a floor plan. The floor plan you build in Heatpunk is used to model the existing state of the proper...

When you first create a project, you will create a plan of the property as surveyed. This is called the surveyed plan. Heatpunk allows you to create multiple design options, so you can specify different systems on the same initial floor plan. The surveyed flo...

Adding a heat pump  Heat pumps are added to a design within the Plan task. While on a design option, drag and drop a Pump from the left-hand sidebar to place a heat pump in the plan. After placing the heat pump, you can select the model. Choose from the re...

Emitters are added to a project in the Plan task. Here you can model existing emitters and any necessary upgrades. Add existing emitters to the surveyed plan and adjust the flow temperature on the right-hand sidebar to clearly see where upgrades are needed. O...

In the Plans task, you create your initial floor plan - the surveyed plan - and then create design options by placing heat pumps, cylinders, and modelling emitter upgrades directly on the plan.  With heat loss calculations fully integrated into the Plans task...

We are excited to announce a major update to Heatpunk. This update changes the way you manage floor plans and specify design options. The new workflow is faster, clearer, and brings your plans and system design together in a single place. Watch the short e...

Heatpunk is brought to you by Midsummer's in-house development team. Midsummer is one the UK’s leading distributors of solar PV, batteries, EV chargers and Heat Pump systems. With over 20 years of experience in the industry, our wholesale distribution and di...

Updates Heatpunk UK has been updated to enact various MCS changes to operating temperature and air change rates. Operating temps for post-2006 buildings have been increased in almost all rooms. Air change rates now default to 0.5 for all rooms except ...

If you are using one of the BS EN 12831-1:2017 methods, the ventilation losses for a building are not a simple sum of the ventilation losses for each room. Instead ventilation losses are calculated both at a room level and then separately on a building (or zon...