20×25 Water-to-Air Heat Exchanger for Outdoor Wood Furnace

The **Outdoor Furnace Supply 20x25 Water-to-Air Heat Exchanger** is a versatile solution for integrating outdoor wood furnaces or other hot water sources into your existing forced-air HVAC system. Designed to fit seamlessly into your hot air plenum, this heat exchanger efficiently transfers heat from water to air, providing warm air distribution through your home’s ductwork. Whether paired with an outdoor wood furnace or a boiler, it delivers consistent, cost-effective heating by converting hot water into usable air heat.

Built for durability and performance, this exchanger features **1″ copper connections** for secure, leak-resistant hookups to your hot water supply. Its compact yet robust design ensures compatibility with most outdoor wood stoves and other water-based heating systems, making it an ideal upgrade for homes seeking energy-efficient, supplementary heating. Easy to install and maintain, this unit helps maximize your heating system’s efficiency while reducing reliance on traditional fuel sources.