Palazzetti Ecofire Dadò Idro 26 TC: 26 kW hydro pellet stove, Standard or DHW version

Palazzetti Ecofire Dadò Idro 26 TC is a 26 kW sealed hydro pellet stove designed to transfer almost all of its useful heat to a central-heating water circuit.

From a total nominal output of 26 kW, up to 24.6 kW is delivered to water.

The product can be selected in two configurations:

• Dadò Idro 26 TC Standard: designed for hydronic space heating.
• Dadò Idro 26 TC DHW: supplied with the hydraulic kit for domestic hot-water production.

Standard or DHW: which version should you choose?

The two configurations share the same 26 kW thermal platform and main combustion, cleaning and hydronic technologies.

Key features

• 26 kW nominal heat output.
• 24.6 kW nominal output to water.
• Approx. 4.6 kW minimum total output.
• Approx. 3.9 kW minimum water output.
• CC50 sealed combustion.
• Standard or DHW configuration.
• Painted-steel cladding.
• Double-door design.
• Balanced Door.
• Integrated hydronic unit.
• Integrated anti-condensation valve.
• Self Cleaning System for burn pot and heat-exchanger tubes.
• Complete Burning System.
• Star pellet-feed system.
• 45 kg pellet hopper.
• Pellet consumption approx. 1 - 5.75 kg/h.
• A++ energy class.
• Italian 5-star environmental rating.

26 kW total output and 24.6 kW to water

Dadò Idro 26 TC operates from approximately 4.6 to 26 kW total output, while the output transferred to the water circuit ranges from approximately 3.9 to 24.6 kW.

At rated output, more than 94% of the useful heat is therefore made available to the hydronic heating system.

Hydro heating without a dedicated room fan

Dadò Idro 26 TC is primarily designed to heat the water of a central-heating system.

There is no dedicated room-air fan: most of the useful heat is transferred to water, while a smaller amount is naturally released into the installation room.

DHW configuration

The Dadò Idro 26 TC DHW version includes a dedicated hydraulic kit for domestic hot-water production.

This makes it suitable for installations where the pellet stove is intended to contribute both to space heating and domestic hot-water generation.

The complete hydraulic system must nevertheless be correctly designed according to domestic hot-water demand, system layout, temperatures and any additional storage or heat generators.

45 kg pellet hopper

The Dadò range features an extra-large 45 kg pellet hopper, equivalent to approximately three standard 15 kg bags.

Pellet consumption ranges from approximately 1 to 5.75 kg/h, providing long operating autonomy at reduced loads.

CC50 sealed combustion: what does it mean?

Dadò Idro 26 TC is a CC50 certified sealed pellet stove.

CC50 means that combustion-chamber airtightness is verified at a pressure difference of up to 50 Pa according to EN 16510.

Combustion air can therefore be supplied directly from outdoors rather than being taken from the installation room.

Integrated hydronic unit and anti-condensation valve

The stove includes an integrated hydronic unit comprising a circulation pump, safety valve, closed expansion vessel and pressure gauge.

An integrated anti-condensation valve helps manage return-water temperature and limit operating conditions that could promote condensation inside the heat exchanger.

Self Cleaning System

The Self Cleaning System automatically cleans both the pellet burn pot and the heat-exchanger tubes, helping maintain consistent heat transfer and reduce routine manual intervention.

Complete Burning System

The Complete Burning System promotes more complete combustion of residual material, helping reduce ash production and improve fuel utilisation.

Technical specifications

Installation and system sizing

Dadò Idro 26 TC must be connected to a correctly designed hydronic heating system and a suitable chimney.

With 24.6 kW available to the water circuit, correct system sizing is particularly important in order to avoid oversizing.

For the DHW configuration, domestic hot-water demand and the complete hydraulic layout must also be correctly assessed.

A++ energy class, 5-star rating and incentives

Palazzetti Ecofire Dadò Idro 26 TC is rated A++ and achieves the Italian 5-star environmental rating under D.M. 186.

Palazzetti documentation refers to Conto Termico 3.0 for Dadò Idro 26 TC. Eligibility depends on the type of project, the appliance being replaced and compliance with all applicable technical and administrative requirements.

For further information, see our guide to Conto Termico 3.0 and incentives for biomass heating appliances.