Hydraulic Accessories

Hydraulic accessories are the components that ensure the water circuit of a central heating or hydro pellet stove operates safely and efficiently. In this category, you'll find the parts that complete the hydraulic circuit of your water-based pellet stove, regardless of the brand or model.

What can you buy in this category?

A water-based pellet stove (hydro or central heating pellet stove) connects directly to your central heating system, providing heat to radiators or underfloor heating. To keep that circuit running reliably, specific hydraulic components are necessary:

• Expansion tanks - absorb the water volume changes during heating

• Safety valves - protect the system from overpressure

• Circulation pumps - ensure flow to radiators and underfloor heating

• Air vents and hydraulic separators - keep the circuit free of air and pressure issues

• Flow sensors and thermowells - monitor flow and temperature

• Anti-condensation fittings - prevent cold return water from entering the stove, avoiding corrosion and soot formation

Why the right components are essential

Properly sized hydraulic accessories are not a luxury: they determine the lifespan of your system and ensure safe, EN 303-5 compliant operation. Missing or incorrectly chosen components can lead to overheating, pressure issues, or efficiency loss. Also, read about the operation and benefits of a concentric flue for an efficient installation.

At Pelletkachelzorg, you'll find hydraulic accessories suitable for a wide range of water-based pellet stoves. Unsure which part fits your system? Our team is happy to advise you on the right choice, whether you're planning a new installation or expanding or repairing an existing system. For more information on fire safety, consider our fire safety check for stove and flue.