Calentador solar de agua casero: ahorra hasta un 70% en tu factura

Want to reduce your gas or electricity consumption for heating your home's water? In this video, we'll show you how to build a homemade solar water heater using black polyethylene tubing. This DIY solar thermal energy solution can cover between 60% and 100% of your domestic hot water consumption during the warmer months, for less than €15 in materials. You'll learn the principle of the open-circuit solar thermal collector, why black absorbs solar radiation, and how physics does all the work without moving parts or electricity. A 20- to 40-meter installation of agricultural irrigation tubing, oriented south at a 30-45° angle, can heat between 80 and 120 liters per day—enough for a family—with materials available at any hardware store or DIY shop. 🔧 What you'll learn: How to wind the coil correctly Optimal orientation and tilt for maximum performance How to regulate the flow rate for better results Why the UV-resistant hose makes a difference in durability We compare this system with commercial solar collectors, which cost between €2,000 and €4,000, and analyze the real savings on your gas bill: the investment is recovered in less than 3 months. If you're interested in energy self-consumption, solar thermal energy, sustainable DIY projects, or simply want to reduce your monthly bill, this video is for you. 🔔 Subscribe to Efficient Home and turn on notifications so you don't miss any more practical solutions for your home. #SolarWaterHeater #SolarThermalEnergy #SolarHotWater #EnergySaving #SustainableDIY #EfficientHome #SolarSelfConsumption #SolarCollector #EnergyEfficiency #SavingsOnYourBill #SolarEnergy #SolarThermal #EasyDIY #SustainableHome #EfficientRenovation #SolarInstallations #HomeSavings #SustainableLiving #EcoHome #ZeroConsumption