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Getting started

Developer Guidelines

Our API for Easy PV and 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 t...

Projects: Create, list & update

Developer Guidelines API endpoints

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

Developer Guidelines API endpoints

Within Easy PV and 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 ...

Projects: Get project data

Developer Guidelines API endpoints

Easy PV and Heatpunk generate 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 order...

How do I change the Outdoor Design Temperature (ODT) for my project?

FAQs Heat pump task

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 Heat pump task Scroll down to find the Heat pump load section Click the penc...

How does Shrunk Punk calculate the heat loss for a property?

Shrunk Punk

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?

FAQs General

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

New in Heatpunk

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...