Palazzetti Ecopalex GTM90S is a 13.5 kW wood-burning fireplace insert designed for renovating existing open fireplaces or creating new installations. Natural convection as standard, with optional front ventilation or hot-air ducting. Thermofix® firebox with cast-iron base, automatic smoke baffle, external combustion-air capability, Ø200 mm flue outlet, A+ energy class and Italian 5-star environmental rating.
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Palazzetti Ecopalex GTM90S is a large wood-burning fireplace insert designed for renovating existing open fireplaces or creating new custom-built fireplaces.
According to the 2027 Palazzetti price list, it delivers a 13.5 kW nominal heat output, with 15.8 kW heat input and 86% efficiency.
GTM90S operates by natural convection as standard. Dedicated optional kits can add front ventilation or hot-air ducting to other rooms.
The firebox uses Thermofix® refractory material with a cast-iron base, designed to withstand the high temperatures generated by wood combustion.
The automatic smoke baffle increases chimney draft when the door is opened and reduces it again after closing to optimise normal operating efficiency.
| Brand | Palazzetti |
| Model | Ecopalex GTM90S |
| Palazzetti code | 802602878 |
| Fuel | Wood |
| Heat input | 15.8 kW |
| Nominal heat output | 13.5 kW |
| Efficiency | 86% |
| Dust, 13% O₂ | 9 mg/Nm³ |
| OGC, 13% O₂ | 22 mg/Nm³ |
| Recommended wood load | 4 kg |
| Dimensions W × D × H | 83 × 59 × 63 cm |
| Weight | 167 kg |
| Flue outlet | Ø200 mm |
| Natural convection | Standard |
| Front ventilation | Optional |
| Hot-air ducting | Optional |
| Energy class | A+ |
| Italian environmental rating | 5 stars D.M. 186 |
Palazzetti Ecopalex GTM90S is rated A+ and achieves the Italian 5-star environmental rating.
Palazzetti documentation refers to Conto Termico 3.0 for GTM90S. Actual eligibility depends on the installation, the appliance being replaced and compliance with all applicable requirements.
For further information, see our guide to Conto Termico 3.0 and incentives for biomass heating appliances.
The appliance uses a Ø200 mm flue outlet. The existing fireplace opening, chimney, combustion-air supply and any optional ventilation or ducting system must be correctly checked before installation.
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Data sheet
Guide to Incentives and Deductions - Ecobonus and Thermal Account (for the Italian market only)
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Palazzetti Ecopalex GTM90S is a 13.5 kW wood-burning fireplace insert designed for renovating existing open fireplaces or creating new installations. Natural convection as standard, with optional front ventilation or hot-air ducting. Thermofix® firebox with cast-iron base, automatic smoke baffle, external combustion-air capability, Ø200 mm flue outlet, A+ energy class and Italian 5-star environmental rating.
