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Getting started
Our API for Heatpunk is open, and we welcome developers working on new integrations for CRMs, job management platforms and other applications. If you have an application that you would like to connect please give us a shout - we'd be really happy to help. D...
Projects: Create, list & update
This guide walks you through creating, updating and archiving projects using our Open API. Jump to section: POST /projects/create POST /projects/list PATCH /projects/update POST /projects/create Use this endpoint to create new projects. Authenti...
Projects: Forms & files
Within Heatpunk, users complete forms and generate PDF reports. In your application you may want to view the completed files and forms associated with a project, and fetch completed form data and PDF documents. Jump to section: GET /forms/list GET /forms/...
Projects: Get project data
Heatpunk generates a full bill of materials for a project, and for our UK and Ireland sites you can very quickly place an order for the components from Midsummer. So you may like to import the shopping cart into your application and display an ordering link. U...
How do I change the Outdoor Design Temperature (ODT) for my project?
To change the ODT, follow these steps: Note this will not affect the Outdoor Low Temperature (ODL) used in the performance task. Read here for more information. Navigate to the Plan task and the Sources tab Below the sound heat pump load and sound check...
How does Shrunk Punk calculate the heat loss for a property?
Shrunk Punk uses the information from a property’s EPC (or details you enter manually) to build a simple model of the home. It looks at the property type, age, floor area, and the descriptions of walls, roof, floor, and windows. From these, it assigns typical ...
How do I do a hard refresh of my browser?
Sometimes your browser may store old versions of the Heatpunk code and this can cause issues. A hard refresh clears your browser cache for a specific page, which forces it to load the most recent version of that page. This could include new scripts, styles or ...
2025 end of year recap
What a year for Heatpunk (and the industry) 2025 has been a year of change for Heatpunk and the wider heat pump industry. We’ve grown our team, delivered new features for installers, and are already working on major updates for the new year. We’re proud that...
Heatpunk Pro: help your team work more efficiently
Running a renewable heating business today means juggling a lot at once: fast‑moving leads, complex designs, tight installation schedules, regulatory paperwork and a customer base that expects clarity at every step. As your team grow, the challenges grow too...
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 ...
New in June 2026
Updates Added system layout page to the technical report. Introduced a unified menu for the sound check when managing multiple heat pumps in a single project. Adjusted the scale bar colour to better distinguish it from the heat pump components. ...
Payment options
A payment option is a method by which the customer can pay for a project. Payment options can be created, viewed and edited in the the financial task. You can also set up payments in your account financial settings. If you are a member of a Pro team, this will...