Tatano biomass vs heating oil, gas and heat pumps: the honest comparison

Useful cost per kWh (2026)

The useful cost per kWh is the only honest metric for comparison. It factors in the fuel price, the equipment's efficiency and distribution losses. Here are the 2026 orders of magnitude in Luxembourg for 1 kWh actually delivered into the home:

• ENplus A1 pellets: €350/t × 4.8 kWh/kg LHV ÷ 95% efficiency ≈ 7.7 cents/kWh useful
• Dry logs: €80 per stere ≈ 1,500 useful kWh ≈ 5.3 cents/kWh useful
• Heating oil: €1.10/L ÷ 9.8 kWh/L LHV ÷ 85% efficiency ≈ 13.2 cents/kWh primary, 9-11 cents useful
• Natural gas (Creos LU 2026): 8-10 cents/kWh useful depending on contract and price indexation
• Air-to-water heat pump: €0.28/kWh electricity ÷ seasonal COP 3.2 ≈ 8.8 cents/kWh useful (ranges from 6-12 depending on climate and tariff)
• Direct electric heating (radiators): €0.28/kWh ÷ ~99% efficiency ≈ 28 cents/kWh useful (a benchmark to avoid)

Total upfront investment

The entry cost varies widely depending on the technology and the sizing. For a 150 m² home in BE/LU, here are the all-inclusive 2026 budgets (equipment + installation + connection):

• Tatano residential pellet boiler 15-30 kW: €9,000-15,000 (Mini K, Kalorina series 22 CL5 models)
• Tatano log gasification boiler 25-40 kW: €8,000-13,000 (Kalorina series 21, Kalorino KS)
• Tatano wood-chip boiler 30-100 kW: €15,000-30,000 (Kalorina LE-PA Cippato, series 23 E Cippato)
• 25 kW oil condensing boiler: €4,500-8,000 (but BANNED from new installation in LU since 2022)
• 25 kW gas condensing boiler: €4,000-7,500 (subject to Creos grid availability)
• Air-to-water heat pump 12-16 kW: €12,000-22,000 depending on brand and connection complexity
• Ground-source heat pump: €25,000-45,000 (drilling included) — stable performance but a high investment

2026 energy subsidies

The gap between solutions narrows considerably once subsidies are applied. In Luxembourg in 2026, the orders of magnitude:

• Tatano pellets/logs/wood chips replacing a fossil-fuel system: Klimabonus €8,000 (LU) — available in BE/FR/CH/CA
• Tatano without replacement: Klimabonus €4,000 (LU)
• Air-to-water heat pump: Klimabonus €5,000-7,500 depending on the scenario (LU)
• Heating oil: €0 (and banned from installation since 2022 in LU)
• Gas: €0 in biomass-equivalent terms; some hybrid gas/heat-pump scenarios remain eligible
• Possible top-ups: 6% renovation VAT (BE), CEE certificates in France, municipal/cantonal grants (LU/CH)

Real carbon footprint

Life-cycle analyses published by ADEME and the IEA give the following orders of magnitude in gCO₂eq per useful kWh, covering fuel production, transport and combustion:

• Wood energy (pellets or logs from sustainably managed forests): 30-40 g CO₂/kWh
• Air-to-water heat pump (LU 2026 electricity mix, ~70% renewable): 50-90 g CO₂/kWh
• Air-to-water heat pump (FR 2026 electricity mix, ~85% low-carbon): 30-50 g CO₂/kWh
• Natural gas: 220 g CO₂/kWh
• Heating oil: 320 g CO₂/kWh
• Wood energy is considered carbon-neutral in the short term under the EU Renewable Energy II directive — provided the supply chain is sustainable (FSC, PEFC).

Energy independence and resilience

The 2022-2024 crises were a reminder that fuel cost is not the only criterion. Biomass has proven its resilience:

Wood is produced locally (forests in Wallonia, the Ardennes, Luxembourg and France), through short supply chains that are largely insulated from geopolitical shocks. ENplus pellets are mostly manufactured in Europe (Germany, Austria, France). Natural gas remains structurally dependent on imports (US LNG, Norwegian fields, Qatari LNG), and heat pumps depend on the stability of the electricity grid at winter peak demand.

When to choose biomass, when to choose a heat pump

Our pragmatic reading in 2026, after several hundred sizing studies:

• New, well-insulated passive/BBC home with no existing chimney: an air-to-water heat pump probably makes more sense — low heat demand, maximum efficiency on low-temperature emitters.
• Older or rural home, high-temperature radiators, cold climate (Ardennes, Œsling): Tatano pellets or logs — a heat pump loses a great deal of COP on 70 °C radiators.
• Building ≥ 50 kW (commercial, multi-unit, agricultural): Tatano without hesitation — investment costs for high-output heat pumps skyrocket and winter COPs collapse.
• Home with wood in abundance (farm, forestry operation, sawmill): Tatano logs or wood chips — near-zero fuel cost.
• Tatano + solar thermal + buffer tank combination: optimal for maximum autonomy, with free domestic hot water in summer.
• Hybrid heat pump + pellet boiler: worthwhile in major renovations — the heat pump covers 80% of the season, with pellets as back-up in severe cold.

And the future? What won't change

Tatano has been manufacturing biomass boilers for 4 generations. Our conviction: heat produced from local wood will remain the most resilient solution, the cheapest to run and the simplest to maintain in the Benelux for the next 30-40 years. Boiler bodies are engineered to outlast most of today's heat pumps (compressors and refrigerants have a service life of 15-20 years). Tatano still supplies spare parts for models installed in 1985.

Ask us for a free personalised assessment: we will be the first to point you towards a heat pump if it is the better solution for your home. Telling the technical truth is our job.