EP115 - Cómo eliminar la humedad a bordo

Humidity is one of the greatest enemies of any boat. It doesn’t matter whether you sail in the Caribbean or spend the winter in a northern marina: mold, condensation, corrosion, and copper sulfation are always lurking. In this episode of The Low Cost Sailor, I explain in a clear and practical way what humidity really is, why it appears on boats, and how to fight it effectively—without spending a fortune and using solutions that actually work. 👉 In this video we cover: ✔ Why humidity is so aggressive on board (and why salt makes everything worse) ✔ How condensation forms and its real consequences ✔ Smart ventilation: simple tricks that make a big difference ✔ Thermal insulation vs chemical insulation: when to use each ✔ How to properly protect cables, connections, and electronics ✔ Vacuum bags: a cheap trick that works even if the boat floods ✔ Desiccant, compressor, and Peltier dehumidifiers: real pros and cons ✔ How to power a dehumidifier directly with solar energy ✔ A simple setup so it only runs when there’s sun ✔ Practical advice for winter, summer, and long stays in port Everything is explained from real onboard experience, with examples, mistakes made along the way, and solutions tested over years of sailing. ⚡ If you want to extend the life of your boat, avoid bad smells, mold, and electrical failures, and keep the interior dry and healthy… this video is for you. 💬 Did you enjoy the video? Your support helps us keep creating projects and tutorials like this: 👍 Give it a Like 🔔 Subscribe and activate the bell 🗣 Share the video with other sailors 🛒 Use our links (same price for you, huge help for the channel) ❤️ Support us with a contribution if you like: 👉 PayPal: https://www.paypal.com/donate/?hosted... 👉 You can also support us on   / thelowcostsailor   For the price of a beer per month, you help us keep making videos. 🤝 Our sponsors ✅ Smart Sails, great sails at the best price: https://smartsails.es/ 🔗 Full post with more photos, details, and updated links: https://www.thelowcostsailor.com/en/h... If any link doesn’t work, you can also find everything on our website: https://www.thelowcostsailor.com 🛍️ Shopping links for the gear used in the video 🛒 -- To improve ventilation -- 🛒 ✔ Magnets to keep doors open 🔵 AliExpress: https://s.click.aliexpress.com/e/_c3X... 🔵 Amazon: https://amzn.to/3OEFAOZ ✔ Solar ventilators 🔵 AliExpress: https://s.click.aliexpress.com/e/_c2w... 🔵 Amazon: https://amzn.to/4qNoxaU ✔ Mini pump I use to remove every last drop from the bilge 🔵 AliExpress: https://es.aliexpress.com/item/100500... 🛒 -- To protect what we carry on board -- 🛒 ✔ Dielectric grease 🔵 Amazon: https://amzn.to/3MJq5Vw ✔ Electrical contact protectors 🔵 AliExpress: https://amzn.to/46PNYl0 ✔ Heat-shrink tubing 🔵 AliExpress: https://s.click.aliexpress.com/e/_c4l... 🔵 Amazon: https://amzn.to/4tIXxvT ✔ Heat-shrink terminals with solder 🔵 AliExpress: https://s.click.aliexpress.com/e/_c3Y... 🔵 Amazon: https://amzn.to/4ruCziO ✔ Conformal coating paste for circuit protection 🔵 AliExpress: https://s.click.aliexpress.com/e/_c3P... 🔵 Amazon: https://amzn.to/4qVuzX7 ✔ Vacuum storage bags (cheapest ones I’ve found are at Primark) 🔵 AliExpress: https://s.click.aliexpress.com/e/_c4O... 🔵 Amazon: https://amzn.to/4ryOmge ✔ Mini handheld vacuum cleaner for onboard use 🔵 AliExpress: https://s.click.aliexpress.com/e/_c2z... 🔵 Amazon: https://amzn.to/4tMfeuu 🛒 -- To reduce humidity -- 🛒 ✔ Closet dehumidifier bags that I use 🔵 AliExpress: https://s.click.aliexpress.com/e/_c37... 🔵 Amazon: https://amzn.to/4atO7wO ✔ Compact compressor dehumidifier 🔵 AliExpress: https://s.click.aliexpress.com/e/_c40... 🔵 Amazon: https://amzn.to/4aLIOYq ✔ The dehumidifiers I use on board 🔵 USB-powered with physical button: https://s.click.aliexpress.com/e/_c4b... 🔵 9V version (does not auto-start): https://s.click.aliexpress.com/e/_c3q... 🛒 -- To automate dehumidifiers -- 🛒 ✔ 9V voltage regulator 🔵 AliExpress: https://s.click.aliexpress.com/e/_c4C... ✔ Super-cheap solar charger with adjustable cut-off voltage 🔵 AliExpress: https://s.click.aliexpress.com/e/_c35... ✔ Precise on/off control circuit (XH-M609) 🔵 AliExpress: https://es.aliexpress.com/item/328626... 🔵 Amazon: https://amzn.to/4tPbBEe 📌 Chapters 00:00 Introduction 00:34 Thumbnail 00:56 Description 02:06 Motivation 03:15 What is relative humidity? 05:24 Ventilation: the best option 07:26 Insulating and protecting against humidity 10:45 Dehumidifiers 13:13 Solar setup for dehumidifier 16:45 Conclusions 18:36 Farewell 19:29 Outro