Saunier Duval Thelia Condens 25-A boiler
From 2.080€ installed · VAT incl.
Description
Wall-mounted condensing boiler: 19.1 kW for heating and 25.2 kW for domestic hot water, with or without the SRT 50/2 thermostat.
The price includes the unit, VAT and installation. It is installed by our own accredited technicians, which is what activates the manufacturer’s warranty. Quote via WhatsApp from photos or a video; a free visit only if needed, in Barcelona and the metropolitan area.
Who is the Thelia Condens 25-A for?
It is Saunier Duval’s simplest and most compact condensing boiler: an affordable way to switch to condensing in flats with one bathroom.
- Aluminium-silicon heat exchanger, which makes it very compact.
- WARM START: micro-storage that cuts the wait for hot water, according to Saunier Duval.
- High-contrast display and self-diagnosis.
Thelia Condens 25-A compared with similar boilers
| Thelia Condens 25-A | ThemaTek Condens 24-AS/2-C | ecoTEC pure VMW 236/7-2 | |
|---|---|---|---|
| Installed price | 2.080€ | 2.040€ | 2.140€ |
| Heating / hot water | 19.1 / 25.2 kW | 23.4 / 24 kW | 20.2 / 24 kW |
| Hot water for | One bathroom | One bathroom | One bathroom |
| Brand | Saunier Duval | Saunier Duval | Vaillant |
All three are installed with the same service and a fixed quote. The difference is price, features and hot-water comfort; if in doubt, send us a photo of your current boiler and we will tell you which fits.
Technical specifications
| Brand | Saunier Duval |
|---|---|
| Model | Thelia Condens 25-A |
| Heating output | 19,1 kW |
| Hot water output | 25,2 kW |
| Technology | Condensing, wall-mounted, natural gas |
| Warranty | 5-year written warranty on the installation, plus the manufacturer warranty |
What the price includes
- Boiler, VAT included
- Removal of the old boiler, if there is one
- Fitting and connection to gas, water and electricity
- Installation or adaptation of the room-sealed flue (coaxial pipe)
- Commissioning, performance check and 5-year written warranty on the installation
- Fixed written quote from photos or a video via WhatsApp; free technical visit only if needed
- Installed in less than a week from accepting the quote
- Our own technical service: 24-hour call-out on working days with a maintenance contract
Models and installed prices
| Model | Configuration | Cooling / heating | Installed price |
|---|---|---|---|
| Thelia Condens 25-A | Without thermostat | 19,1 / 25,2 kW | 2.080€ |
| Thelia Condens 25-A + SRT 50/2 | With SRT 50/2 thermostat | 19,1 / 25,2 kW | 2.140€ |
Prices include VAT and standard installation. Choose the configuration above to see the exact price.
How to read the specifications
- 19.1 kW heating
- Maximum output for the radiators. With the floor area and photos of the radiators we check it is right before confirming it.
- 25.2 kW hot water
- Roughly 14 litres per minute heated by 25 °C (our own calculation from the output): enough for one bathroom.
- Condensing
- It recovers heat from the steam in the flue gases, which is why it needs a drain for the condensate.
What can change the price
The price includes removing the old boiler and a standard room-sealed flue. The following are quoted separately, in writing and before we start:
- A long flue run or one that does not meet current regulations.
- A condensate drain if there is none nearby.
- Moving the boiler to another place.
- A Wi-Fi thermostat or programmer, if not included.
- Cleaning the circuit or replacing radiators and valves.
More information
Frequently asked questions about the Thelia Condens 25-A
What home is the Thelia Condens 25-A for? For a flat or house with radiators and one bathroom: 19.1 kW of heating and 25.2 kW of hot water.
What does the price include? The boiler, VAT, removal of the old one, fitting and connection to gas, water and electricity, a standard room-sealed flue and commissioning. Fixed written quote before we start.
Can it go inside a kitchen cabinet? It depends on the space and the clearances the manufacturer requires. Send us a photo and the measurements and we will check before quoting.
How long does a boiler replacement take? Fixed quote the same day from the photos you send us on WhatsApp (if a visit is needed, within 24-48 hours) and replacement in a single day. From November to January it is best to book ahead.
Are there grants for replacing the boiler? It depends on the call currently open in Catalonia. If there is one, we provide the installation documents.
