A wood stove water tank, also known as a hot water heater, is a valuable addition to your wood-burning stove. It allows you to harness the stove’s heat to warm water for various domestic purposes. In this concise guide, we will explore the technical details of a wood stove water tank, its installation, and practical uses.
What is a Wood Stove Water Tank?
A wood stove water tank is a heat exchanger that attaches to or integrates with a wood-burning stove. It consists of a water reservoir, a series of pipes, and a heat exchange mechanism. As the wood stove operates, the tank captures and transfers the stove’s heat to the water inside.
How Does it Work?
The process of heating water with a wood stove tank is straightforward:
Installation: The tank is usually installed on or near the wood stove, with pipes connecting it to the stove’s firebox.
Heat Exchange: The heat exchanger, which can be made of steel or copper, is placed inside the firebox or attached to its exterior. As the stove heats up, the exchanger absorbs the heat.
Water Circulation: Water is pumped or naturally circulated through the exchanger’s pipes. As it flows through, it absorbs the heat from the exchanger.
Hot Water Storage: The hot water is stored in the tank until it’s needed for various purposes, such as bathing, washing dishes, or space heating.
Key Considerations for Installing a Wood Stove Water Tank
Stove Compatibility: Ensure your wood stove is compatible with a water tank. Some stoves come with integrated tank options, while others can be retrofitted with an aftermarket tank.
Tank Size: Choose a tank size that suits your household’s hot water needs. Tanks typically range from 3 to 30 gallons, so select one that aligns with your usage.
Location: Position the tank close to the wood stove, keeping in mind the practicality of water piping and access.
Piping: The piping should be properly insulated to prevent heat loss and ensure efficient water circulation.
Circulation System: Decide whether you want a passive or active circulation system. Passive systems rely on gravity, while active systems use a pump to circulate water. Your choice will depend on your stove’s location and the complexity of your setup.
Practical Uses
Domestic Hot Water: Use the hot water generated by the wood stove for bathing, washing dishes, and general household use.
Space Heating: In some setups, the hot water from the tank can be circulated through radiators or radiant floor heating systems, providing an additional source of space heating.
Backup Heating: A wood stove water tank can serve as a reliable backup for hot water during power outages or when other water heating systems fail.
Conclusion
A wood stove water tank is a practical addition to your wood-burning stove, allowing you to harness the stove’s heat for domestic hot water and space heating. By considering the technical aspects of installation and the practical uses, you can enhance the efficiency and versatility of your wood stove, making it an even more valuable asset in your home.