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

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

Water heating with a gas boiler to connect to the home's circuit.

Gas
Natural gas Convertible to propane
Wi-Fi
Optional MiGo Link
Heating
3.9-29.8 kW 80/60 °C
Hot water
External accumulator Not included
Gas and Wi-Fi: compatibility and accessories

Gas and conversion: It accepts natural gas G20 and conversion to propane G31 through the manufacturer's adjustment procedure. Compatibility with butane G30 is not offered without explicit documentation for this version. The conversion and commissioning are the responsibility of a qualified professional; they are not included in the purchase. Source 1 ↗ Source 2 ↗

Wi-Fi and supply: Optional MiGo Link solution for control from the app. It is purchased separately; the wired or radio controls of the set do not imply that the connection module is included. Source 1 ↗ Source 2 ↗

Description

Saunier Duval is responsible for heating the water in the heating circuit. To also have domestic hot water, this configuration requires an external accumulator and the corresponding connection elements.

Guide for this modelDoes your boiler show an error?Saunier Duval Thema MiConnect AS 30-CS/1-CfSee codes
Guide

What to check before installing this boiler

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

  1. Confirm the model and commercial reference, the type of gas, and the supply configuration in the manufacturer's documentation.
  2. Ask a qualified installer to assess the heating and domestic hot water demand; compare measured flow rates at the same temperature difference.
  3. Check dimensions, connections, flue gas evacuation, condensate drainage, and controls compatible with the existing installation.
  4. 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.
Shipping to the mainland included
New equipment
Separate installation
Informed purchase
Saunier Duval Thema MiConnect AS 30-CS/1-Cf boiler