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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
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...
Introduction to the Plans Task
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...
Floor Plan Update - April 2026
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...
Partner spotlight: ESBE hydronic solutions
ESBE components have recently been added to Midsummer’s product portfolio and are now fully integrated into Heatpunk for system specification. Founded in Sweden in 1906, ESBE engineers and manufactures hydronic solutions with a strict focus on safety, energy ...
Who is Midsummer?
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...
New in May 2026
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 ...
Why does my total heat loss not equal the sum total of the room heat loss?
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...