@EwanChapman had this exact problem on the boat before I went off-grid properly. Metal shell, decent insulation, still a furnace by midday.
Two things that actually helped:
External shade first —...
We use essential cookies to keep you logged in and provide core website functionality. We do not use advertising or tracking cookies. See our Privacy Policy for details.
Cookie Details
Session cookies (strictly necessary): These cookies are essential for the website to function. They keep you logged in and maintain your session. They are automatically deleted when you close your browser. These cookies do not require consent under UK GDPR/PECR.
Local storage: We store your cookie consent preference and some UI preferences in your browser's local storage. This data never leaves your device.
Report an Issue
Thank you for reporting this issue. We'll review it as soon as possible.
