Humidity and Condensation on a Narrowboat: Why It Happens and How to Stop It (Part 1)

Humidity, Condensation & Mould on Narrowboats: What You Need to Know... In this video (part 1), I’m tackling a topic that might sound dry (pun fully intended) — but trust me, if you live on board a narrowboat, this is something you really want to understand: humidity. In part 2, I tackle the maths behind the story (link to part 2 -    • Condensation on Boats: The Maths That Expl...  ) Moisture in the air isn’t just annoying — it can lead to condensation, and over time, mould, which can damage your furnishings and give that dreaded musty smell. So, in true Grey Wagtail fashion, I’m looking at the science of humidity and condensation and exploring some practical solutions: 🌫️ What is humidity? 💧 What does “relative humidity” mean, and why does it matter? 🌡️ How does the dew point cause condensation? 🫁 How do everyday activities — even breathing! — contribute to rising moisture levels? 🚪 Why are metal surfaces and windows especially vulnerable? Once I’ve covered the basics, I’ll show you how you can fix the problem: ✅ Quick, effective ventilation techniques (including a brilliant trick borrowed from Germany: Stoßlüften) ✅ Chemical dehumidifiers: What works and where to use them ✅ Electric dehumidifiers: What type to choose for a boat - condenser or desiccant - and why I swear by my Meaco DD8L Junior ✅ How I use a home automation setup to regulate humidity on board Whether you’re new to narrowboating or a seasoned continuous cruiser, understanding and managing your onboard humidity will make life afloat much more comfortable — and your boat much healthier. This video is for you if you’ve ever dealt with steamed-up windows, dripping ceilings, or swelling doors. 🛒Channel Amazon Shop - https://www.amazon.co.uk/shop/nickswa... - things bought from the shop help to support this channel ☕️If you would like to help support my efforts, then please feel free to Buy Me a Coffee - https://buymeacoffee.com/nickswanderings 📰 Want more behind-the-scenes content and canal-life thoughts? Sign up for the Grey Wagtail newsletter via the QR code at the end of the video or use the link in the description below. To keep up with my adventures on the Grey Wagtail, check out the newsletter - https://nickswanderings.substack.com Video Equipment Used (* are affiliate links) iPhone 13 Pro External hard drives* - https://amzn.to/40SbXOe Hollyland Lark M2 Wireless Lavalier Microphone* - https://amzn.to/48OMLdy Phone Tripod Stand* - https://amzn.to/42foYBU Edited using Final Cut Pro - https://www.apple.com/uk/final-cut-pro/ Dehumidifiers (* are affiliate links) Meaco Portable Dehumidifier DD8L Junior* - https://amzn.to/43U4IXP Unibond Dehumidifier* - https://amzn.to/3RmHMc7 Unibond Dehumidifier Refills* - https://amzn.to/4jlbgDM Kontrol Mini Moisture Trap* - https://amzn.to/42NsALw Social Media 🦋 - https://bsky.app/profile/drnickmorris... 👍 Like if you found this helpful 🔔 Subscribe for more life-on-the-cut content 💬 Let me know in the comments — how do you handle humidity on board? #NarrowboatLiving #HumidityControl #Condensation #BoatLife #GreyWagtail #UKCanals #LiveaboardLife #DehumidifierTips #WinterOnABoat #CanalBoatLiving