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LibreOffice offers free Microsoft Office alternative with Writer, Calc, Impress suite

LibreOffice is a free, open-source productivity suite available on Windows, macOS and Linux that includes Writer, Calc, Impress, Draw, Base and Math as alternatives to Word, Excel, PowerPoint and other Microsoft Office apps. It supports Microsoft file formats such as DOCX, XLSX and PPTX, though complex formatting or macros can sometimes render differently between the two suites.

techspot.com · 2026-11-13

Study finds US heat pump installers often overestimate home heat loss

A Purdue University study led by Kevin Kircher examined heat loss calculations given to about 75 US homeowners and found they frequently overestimated design heat loads by a factor of two or more, leading to oversized systems. Some homeowners reported paying over $1,000, and in one case $2,500, just for the heat loss survey. Industry figures also warn that AI chatbots are spreading unreliable advice on heat pump sizing, prompting companies like Cool Calc to plan improved AI integration.

bbc.co.uk · 2026-11-13