6 Ingenious Projects for Endless Hot Water without Electricity

6 Ingenious Projects for Endless Hot Water without Electricity

6 Ingenious Projects for Endless Hot Water Without Electricity


How many times have you found yourself without hot water? It could be a power outage, the hot water heater failing, or a water supply disruption. Regardless of why you are without hot water, it is more than a minor inconvenience. We need hot water to clean ourselves, wash dishes, and launder our clothes. So, what can you do when the power goes out or your hot water heater stops working? Fortunately, there are several ingenious projects you can undertake to have endless hot water without electricity. In this article, we will explore six of these projects and provide step-by-step instructions for each. Let’s dive in!

1. DIY Solar Water Heater

One of the best ways to have hot water without electricity is to harness the power of the sun. Building a DIY solar water heater is a relatively simple and cost-effective project that can provide you with endless hot water. Here’s how you can do it:

1. Start by locating a suitable area on your property where you can install the solar water heater. Make sure it receives ample sunlight throughout the day.

2. Obtain two black barrels with tight-fitting lids. These will act as your solar collectors. Paint the barrels black to maximize heat absorption.

3. Connect the two barrels together with a hose. One barrel will serve as the input for cold water, and the other as the output for hot water.

4. Position the barrels in a way that allows the sun’s rays to hit them directly. You can place them on a sloped surface or use a stand for better alignment.

5. Attach a garden hose to the output barrel and direct it to where you need hot water. The solar energy will heat the water as it passes through the barrels, giving you a constant supply of hot water.

6. Remember to insulate the pipes to minimize heat loss and maximize efficiency.

2. Rocket Stove Water Heater

Rocket stoves are renowned for their energy-efficient cooking capabilities. However, they can also be repurposed to heat water effectively. Here’s how you can turn a rocket stove into a water heater:

1. Start by building or obtaining a rocket stove. You can find numerous tutorials online or purchase a pre-made one.

2. Create a water tank by selecting a durable metal or heat-resistant container. Make sure it is large enough to hold the desired volume of water.

3. Connect the water tank to the rocket stove’s chimney or flue, ensuring a tight and sealed connection to minimize heat loss.

4. Build a small fire in the rocket stove and allow it to burn until it generates a significant amount of heat.

5. Once the stove is hot enough, place the water tank on top of it. The heat from the stove will transfer to the water, gradually increasing its temperature.

6. Monitor the temperature of the water and adjust the fire accordingly to maintain a consistent heat level.

7. Use a thermometer to check the temperature of the water before using it for bathing or other purposes.

3. Wood-Fired Hot Tub

If you’re looking for a relaxing way to enjoy hot water without electricity, a wood-fired hot tub is the perfect solution. Building your own wood-fired hot tub can be a fun and rewarding project. Here’s how you can do it:

1. Determine the size and design of your hot tub. You can choose to build it above ground or dig a hole and create an in-ground tub.

2. Select a suitable location for the hot tub, ensuring it is easily accessible and provides a pleasant view.

3. Build a sturdy frame using pressure-treated wood. Make sure it is strong enough to support the weight of the tub and the water it will hold.

4. Install a water inlet and outlet system. You can use a submersible water pump to circulate the water or create a gravity-fed system.

5. Line the inside of the tub with a high-quality pond liner or waterproof material to prevent leaks.

6. Build a fire pit adjacent to the hot tub and ensure it is safely positioned away from any flammable materials.

7. Heat the water by burning wood in the fire pit. The heat will transfer to the hot tub, gradually warming the water.

8. Monitor the temperature of the water and add or remove firewood as necessary to maintain the desired temperature.

9. Enjoy soaking in your DIY wood-fired hot tub and bask in the warmth of the water without relying on electricity.

4. Solar Shower

If you prefer a simpler solution for hot water without electricity, a solar shower is a fantastic option. This portable shower can be easily set up outdoors and uses the power of the sun to heat the water. Here’s how you can make your own solar shower:

1. Obtain a large black water bag or a dark-colored, heat-absorbent container that can hold a sufficient amount of water.

2. Attach a shower nozzle or a hose with a spray head to the water bag.

3. Hang the water bag in a sunny location, preferably at an elevated position to create enough water pressure for a decent shower.

4. Allow the bag to sit in the sun for several hours. The black color will help absorb heat and warm the water inside.

5. When you’re ready to take a shower, simply turn on the shower nozzle and enjoy the warm water provided by the sun.

5. Camping Solar Oven

A camping solar oven is not only perfect for cooking food, but it can also be used to heat water for various purposes. Here’s how you can create a simple solar oven for heating water while camping or in an emergency situation:

1. Find a sturdy cardboard box and line it with aluminum foil. This will help reflect sunlight and retain heat inside the box.

2. Cut a flap in the box’s lid and cover it with a clear sheet of plastic or glass. This will allow sunlight to enter the box while preventing heat from escaping.

3. Place a pot or container inside the box and fill it with water.

4. Position the solar oven in direct sunlight, ensuring that the flap is facing the sun.

5. As the sunlight enters the box and gets trapped, the heat will gradually increase, causing the water in the pot to heat up.

6. Monitor the temperature of the water and adjust the position of the solar oven throughout the day to maximize heat absorption.

6. Heat Exchanger System

If you have a fireplace or wood-burning stove in your home, you can install a heat exchanger system to capture and transfer the heat to your water supply. Here’s how you can set up a heat exchanger system:

1. Determine the location of your heat exchanger system and ensure it is close to the fireplace or wood-burning stove.

2. Obtain a heat exchanger coil or build one using copper tubing. The coil should be large enough to maximize heat transfer.

3. Connect one end of the coil to the stovepipe or chimney of your fireplace or wood-burning stove. Ensure a tight and sealed connection.

4. Attach the other end of the coil to your water supply system. This can be the inlet of your water heater or a separate reservoir.

5. As the stove or fireplace heats up, the heat will be transferred to the coil, heating the water that flows through it.

6. Make sure to insulate the coil and pipes to prevent heat loss and ensure the optimum efficiency of the system.


Losing access to hot water due to a power outage or other circumstances can be frustrating, but with these ingenious projects, you can ensure a constant supply of hot water without electricity. From DIY solar water heaters to wood-fired hot tubs, the possibilities are endless. Remember to consider safety precautions and local regulations when undertaking these projects. Stay prepared and enjoy the comfort of hot water even in challenging situations.

My 2 Cents:

Having a backup plan for hot water is essential, especially during emergencies or situations where electricity is not available. These projects offer creative and sustainable ways to generate hot water without depending on the power grid. Whether you choose to build a DIY solar water heater or indulge in the relaxation of a wood-fired hot tub, these projects not only provide hot water but also contribute to self-sufficiency and resourcefulness. Explore the options that suit your needs and enjoy the convenience of hot water, no matter the circumstances. Stay prepared, stay resourceful!