Biomass Boiler in Ireland — Wood Pellet Stove, Cost, SEAI Grant, and When It Beats a Heat Pump
On this page
Biomass: €8,000–€15,000 installed. SEAI grant €5,500. Works off-grid. Not a heat pump replacement for most homes.
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).
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.
Sources
SEAI, Biomass Grants 2026. https://www.seai.ie/grants/
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.
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.
Where to go next
Next decision
The next step in your build sequence.
Branch into
Adjacent decisions at the same stage.
- Battery Storage in Ireland 2026 — Cost, Payback, and When to Skip It →
- District Heating in Ireland — Where It Exists, the Connection Cost, and When It Works →
- Ground Source Heat Pump in Ireland — Borehole Cost, When It's Worth the Premium →
- Solar Thermal in Ireland — Hot Water from the Sun, When It Pays Back, and the Alternatives →
Watch out for
Common mistakes, hidden costs, gotchas.
- Battery Storage in Ireland 2026 — Cost, Payback, and When to Skip It →
- District Heating in Ireland — Where It Exists, the Connection Cost, and When It Works →
- Ground Source Heat Pump in Ireland — Borehole Cost, When It's Worth the Premium →
- SEAI Heat Pump Grant 2026 — €6,500 + €3,500 Bonus, Eligibility, and the BER Trap →
- Heat Pump in Ireland 2026 — Air-to-Water Cost, SEAI Grant, and the 6 vs 9 kW Question →
- MVHR in Ireland — Mechanical Ventilation with Heat Recovery, Cost, and Why You Need It →
- Radiators vs Underfloor Heating in Ireland — Cost, Comfort, and Heat Pump Pairing →
- Solar PV in Ireland 2026 — 6 kWp Cost, Payback, and the SEAI Grant →
- Underfloor Heating in Ireland — Cost, Floor Build-up, and the Heat Pump Pairing →
Compare with
Alternative approaches worth knowing.