Biomass Boiler in Ireland — Wood Pellet Stove, Cost, SEAI Grant, and When It Beats a Heat Pump

Biomass boiler in Ireland: €8,000–€15,000 installed. SEAI grant €5,500 (subject to scheme). Pellet or chip-fed, works off-grid. Good for rural homes with no gas connection and a renewable heat incentive. Not a heat pump replacement for most homes — heat pumps are more efficient, quieter, and require less maintenance. Needs a fuel store (4–6 tonnes of pellets = 8–10 m² of space) and an annual service. Pellet cost varies with the global wood pellet price (€250–€350/tonne). Biomass qualifies for the SEAI renewable heat incentive (where applicable) and is a good option for homes with a large garden or a farm (own wood supply).

TL;DR

• Biomass boiler in Ireland: €8,000–€15,000 installed. SEAI grant €5,500. Pellet or chip-fed, works off-grid.

• Good for rural homes with no gas connection and a renewable heat incentive (RHI) equivalent. Not a heat pump replacement for most homes.

• Needs a fuel store (4–6 tonnes of pellets = 8–10 m² of space) and an annual service. Pellet cost varies with the global wood pellet price.

When this matters most

You're considering a biomass boiler for a rural or off-grid home.

When this doesn't apply

You have a heat pump or are on the gas grid.

Frequently asked questions

How much does a biomass boiler cost in Ireland?

€8,000–€15,000 installed. SEAI grant €5,500. Pellet or chip-fed, works off-grid. Needs a 4–6 tonne fuel store.

Is a biomass boiler better than a heat pump?

For most homes, no — heat pumps are more efficient (COP 3–4 vs 1–2 for biomass), quieter, and require less maintenance. Biomass is good for off-grid rural homes with a renewable heat incentive.

How much does wood pellet cost in Ireland?

€250–€350 per tonne. A typical home uses 4–6 tonnes per year. Pellet cost varies with the global wood pellet price.

Sources

SEAI, Biomass Grants 2026. https://www.seai.ie/grants/