Saunier Duval Thema MiConnect AS 30-CS/1-Cf boiler

Condensing boiler · New equipmentSaunier Duval Thema MiConnect AS 30-CS/1-Cf

New boilerSaunier Duval Condensing boilers

Saunier Duval Thema MiConnect AS 30-CS/1-Cf boiler

VAT includedIn stock

Thema MiConnect AS 30-CS/1-Cf is a heating-only boiler: it offers from 3.9 to 29.8 kW output at 80/60 °C and from 4.4 to 32.8 kW at 50/30 °C. For domestic hot water, it manages an external accumulator with a three-way valve and sensor; the nominal power for that service is 34.8 kW. The body measures 740 × 418 × 344 mm. It can incorporate an optional MiGo Link WiFi control; the adaptation to propane must be carried out by a professional. External accumulator and installation not included. VAT and mainland shipping included.

Useful heating power (80/60 °C, G20): 3.9-29.8 kW
Hot water: With external accumulator
Body dimensions (height × width × depth): 740 × 418 × 344 mm

Condensing boiler

The model, at a glance

Heating boiler Thema MiConnect AS 30-CS/1-Cf: 3.9–29.8 kW at 80/60 °C and domestic hot water via external accumulator.

Useful heating power (80/60 °C, G20): 3.9-29.8 kW
Hot water: With external accumulator
Body dimensions (height × width × depth): 740 × 418 × 344 mm

Read the full description and what it includes.

The MiConnect AS 30-CS/1-Cf operates only in heating mode, with 3.9–29.8 kW output at 80/60 °C and 4.4–32.8 kW at 50/30 °C.

The domestic hot water system requires an external accumulator connected to the three-way valve and the system sensor; the nominal power to charge it is 34.8 kW. The body measures 740 × 418 × 344 mm and allows for an optional MiGo Link WiFi control. The accumulator and installation take up their own space; the adaptation to propane should be carried out by a professional.

What is included in the purchase?

External accumulator and installation not included.

Price including VAT and shipping to mainland Spain. Installation, adaptations, and commissioning are valued separately.

Consult the manufacturer's PDFs ↓

Guide

What to check before installing this boiler

The choice of equipment does not replace the inspection of the installation by a qualified professional.

Confirm the model and commercial reference, the type of gas, and the supply configuration in the manufacturer's documentation.
Ask a qualified installer to assess the heating and domestic hot water demand; compare measured flow rates at the same temperature difference.
Check dimensions, connections, flue gas evacuation, condensate drainage, and controls compatible with the existing installation.
Confirm the included accessories and the delivery time before scheduling the installation. The online purchase of the equipment does not include installation or commissioning.

Technical data

Technical data of Saunier Duval Thema MiConnect AS 30-CS/1-Cf

Brand: Saunier Duval
Model: Saunier Duval Thema MiConnect AS 30-CS/1-Cf boiler
Status: New
Supply scope: External accumulator and installation not included.
Shipping: Included in mainland Spain. Please confirm the deadline.
Commercial reference: 125234211

Specifications and dimensions of the model

Compare each magnitude under its testing conditions: heating, domestic hot water, efficiency, and dimensions.

Useful heating power, minimum-maximum at 80/60 °C (G20): 3.9–29.8 kW
Heating
Useful heating power, minimum-maximum at 50/30 °C: 4.4–32.8 kW
Heating
Nominal power for domestic hot water with accumulator: 34.8 kW (G20)
Hot water
Type of domestic hot water: Heating service with external accumulator; management through 3-way valve and sensor
Hot water
Efficiency: Seasonal efficiency 94%; class A with MiSet
Efficiency and consumption
Body dimensions (height × width × depth): 740 × 418 × 344 mm
Dimensions and connections

Manufacturer's sources

PDF and documentation of the model

Original documents, unmodified. Refer to the installation plan and the conditions of each data point before selecting the equipment.

The gallery sheets are summaries of Uniclima based on these documents. The external volume diagram does not represent connections, accessories, or service distances.

Frequently Asked Questions

Frequently asked questions: condensing boilers 125234211

What power does it offer for heating?

It is a heating-only boiler. It operates from 3.9 to 29.8 kW useful at 80/60 °C and from 4.4 to 32.8 kW at 50/30 °C. The required power is determined by the thermal demand and the emitters of the system.

Can it supply two showers at 8 l/min?

Two showers of 8 l/min require 16 l/min. At 35 °C output from 10 °C input, the temperature rise is 25 °C; at 40 °C, the rise is 30 °C. This AS 30 does not produce instantaneous domestic hot water: the result depends on the external accumulator, its volume, recovery, and simultaneous use.

How is the domestic hot water prepared?

It requires an external accumulator. The boiler manages that circuit through a three-way valve and a sensor; the tank is not part of this reference and must reserve its own space.

What are its dimensions?

The body measures 740 × 418 × 344 mm (height × width × depth). The final space must include connections, drainage, service clearances, and the external accumulator.

Can I control it via WiFi?

Yes, through the compatible MiGo Link accessory, which is purchased separately.

What gas does it use?

It is prepared for natural gas and can be adapted to propane using the parameters provided by the manufacturer. The conversion and commissioning are the responsibility of a professional.

Does the price include installation and shipping?

Includes VAT and shipping to mainland Spain. Installation and adaptations are valued separately. External accumulator and installation not included.