(
The Ultimate Guide to Thermo Wood Cookers
๐ Why Thermo Wood Cookers?
Thermo cookers are multi-functional, eco-friendly appliances that heat your home and cook your meals โ all while using sustainable wood fuel. Perfect for countryside homes, off-grid living, and reducing dependence on gas or electricity.
They integrate with your central heating system, powering radiators or underfloor heating, and they often provide hot water too.
But not all thermo cookers are created equalโฆ
๐ Brand Comparison at a Glance
| Brand | Origin | Max Output (kW) | Water Output | Efficiency | Style Range | Suitable For |
|---|---|---|---|---|---|---|
| Rizzoli PRO | Italy | 30+ kW | 25+ kW | Up to 89% | Fully customizable | Large homes / off-grid |
| Rizzoli ST | Italy | 26 kW | 20 kW | 86โ88% | Modern/industrial | Contemporary homes |
| Rizzoli RTVE | Italy | 22 kW | 15.5 kW | 85โ87% | Classic/modern | Medium to large homes |
| La Nordica | Italy | 15.5 kW | 9.0 kW | ~80% | Rustic, enamelled | Traditional spaces |
| Esse Ironheart | UK | ~12 kW | ~8 kW | ~77โ80% | Cast iron classic | Cottages, small homes |
๐ฅ Heating Performance: Rizzoli Sets the Standard
Rizzoli PRO Range
-
Total Output: Up to 30 kW
-
Water Output: 25+ kW
-
Efficiency: Up to 89%
-
Built-in Boiler: Yes
-
Key Strengths: Powerful enough for entire large homes or light commercial use. Perfect for modern, airtight houses.
Rizzoli ST Range
-
Output: 20โ26 kW
-
Water Heating: Up to 20 kW
-
Efficiency: 86โ88%
-
Design: Sleek, flat-faced or industrial style
-
Ideal for open-plan kitchens and eco-builds.
Rizzoli RTVE Range
-
Output: 22 kW
-
To Water: 15.5 kW
-
Design: Versatile โ available in classic or contemporary finishes
-
Excellent for both traditional and modern UK homes.
๐ฅ La Nordica and Esse perform well in small-to-mid-sized homes but fall short on large-scale water heating or integration with full central systems.
๐งฑ Build Quality & Design Flexibility
| Feature | Rizzoli PRO/ST/RTVE | La Nordica | Esse |
|---|---|---|---|
| Construction Material | Stainless steel, refractory firebox | Cast iron & enamel | Heavy cast iron |
| Oven Type | Thermostatic with glass door | Enamelled, manual temp. | Classic cast-iron oven |
| Insulation | Multi-layer with self-cleaning glass | Basic oven insulation | Moderate |
| Air Control System | Superflameฎ + Air Wash + External Air | Manual | Manual |
| Cladding / Finish Options | Ceramic, soapstone, steel, colour panels | Enamel colour range | Painted enamel finishes |
| Safety | CE/EN-approved + optional DSA kit | DSA compatible | Manual pressure relief |
๐ ๏ธ Rizzoliโs craftsmanship is unmatched, offering precision airflow control, passive-house compatibility, and high-grade materials throughout.
๐ Central Heating Integration
If youโre looking to replace or supplement a gas/oil boiler, only the Rizzoli PRO or ST ranges are built for this.
| Brand/Model | Can Power Radiators? | Works With Buffer Tank? | Domestic Hot Water? |
|---|---|---|---|
| Rizzoli PRO | โ Yes (entire system) | โ Yes | โ Yes |
| Rizzoli ST | โ Yes | โ Yes | โ Yes |
| Rizzoli RTVE | โ Medium capacity | โ Yes | โ Yes |
| La Nordica TermoRosa | โ ๏ธ Limited (up to 5โ6 radiators) | โ ๏ธ Only with mods | โ Small-scale |
| Esse Ironheart | โ ๏ธ Basic loop only | โ Not ideal | โ Single tap max |
๐ธ Price & Value Comparison
| Model/Brand | Price Range | Boiler Included | Customizable | Value Summary |
|---|---|---|---|---|
| Rizzoli RTVE | ฃ6,000โฃ9,000 | โ Yes | โ Yes | Premium for mid-large homes |
| Rizzoli ST | ฃ7,500โฃ10,000 | โ Yes | โ Yes | Sleek modern design + full functionality |
| Rizzoli PRO | ฃ10,000โฃ15,000+ | โ Yes | โ Yes | Best-in-class power & design |
| La Nordica TermoRosa | ฃ2,500โฃ4,500 | โ Yes | โ No | Good for traditional homes on budget |
| Esse Ironheart | ฃ4,000โฃ6,000 | โ ๏ธ Optional | โ Painted | Reliable British classic, limited output |
๐ Final Verdict: Rizzoli PRO Range Takes the Crown
If you want the best thermo cooker in the UK for 2025 โ one that can:
-
Cook like a pro
-
Heat your entire home
-
Deliver domestic hot water
-
Integrate with eco-builds and off-grid systems
-
Look stunning in your kitchen
๐ The Rizzoli PRO Range is the winner.
Itโs powerful, efficient, and customizable to suit traditional or ultra-modern homes alike.
๐ง What Should You Choose?
| Scenario | Recommended Cooker |
|---|---|
| Full-house heating + cooking solution | Rizzoli PRO |
| Modern eco-home or new build | Rizzoli ST |
| Off-grid cottage or larger home | Rizzoli RTVE |
| Rustic charm + value on a budget | La Nordica TermoRosa |
| Small British farmhouse or annex | Esse Ironheart |