Move every BTU where it belongs with the right heat exchanger for your wood boiler. Altheatsupply stocks four proven styles—tube & shell, brazed plate, sidearm, and water‑to‑air—each engineered to handle the high temperatures, ash‑laden water, and glycol mixes common in wood‑fired systems. Whether you’re charging a thermal storage tank, producing domestic hot water, or pushing warm air through ductwork, our heat exchangers deliver rapid, reliable energy transfer while resisting corrosion and scale. Explore the options below to match your boiler setup and keep your home comfortable all season long.

Tube & Shell Heat Exchangers – High‑Capacity Hydronic Transfer

Tube & shell units mount between the boiler loop and large thermal storage tanks, pools, or snow‑melt manifolds. A bundle of copper or stainless tubes inside a heavy shell offers generous surface area for high‑flow applications, moving serious heat without excessive pressure drop.

Brazed Plate Heat Exchangers – Compact, Efficient Heat Swap

Brazed plate exchangers use stacked, herringbone‑pattern plates vacuum‑brazed into a leak‑tight block. Their small footprint fits tight mechanical rooms while delivering rapid heat exchange for radiant floors, indirect water heaters, and secondary hydronic loops tied to your wood boiler.

Sidearm Heat Exchangers – Passive Domestic Hot Water Heating

A vertical sidearm exchanger straps to the outside of a standard water‑heater tank. Natural thermosiphon circulates boiler water through the copper tube bundle, heating potable water without a pump—an efficient, maintenance‑light way to harvest boiler output for showers and sinks.

Water‑to‑Air Heat Exchangers – Forced‑Air Distribution

Water‑to‑air heat exchangers slide into the plenum of an existing air handler. Boiler water passes through finned copper tubes while the blower pushes air across the fins, sending wood‑fired warmth through your ductwork. Ideal for homes that rely on central forced‑air heating.