Wood-fired water heaters are a convenient way to heat water for showers, dishwashing, laundry, and other household tasks. Domestic Hot Water Supply: Rural homes or off-grid living: Ideal for heating water in areas without access to electricity or piped gas. Backup water heating: A reliable option during power outages or fuel shortages. Hot tubs or outdoor baths: Often used with wood-fired systems for eco-friendly and aesthetic bathing setups.