The Vaillant ecoTEC plus 825 Combi heats your radiators and gives you hot water straight from the mains, with no tank or cylinder. It is a solid choice from Vaillant, and you can see your fixed installed price online in a couple of minutes. See your fixed price in our online quote.
Key specs
| Spec | Vaillant ecoTEC plus 825 Combi |
|---|---|
| Boiler type | Combi, condensing, wall mounted |
| Fuel | Mains gas |
| Central heating output | 20.4 kW |
| Hot water flow rate | 10.5 l/min |
| Efficiency | 94%, A-rated (ErP: A heating, A hot water) |
| Manufacturer warranty | 5 years standard, extendable to 10 years with a Vaillant Advance installer |
| Dimensions (H x W x D) | 720 x 440 x 338 mm |
Who it suits
- Smaller homes and flats with one bathroom.
- Anyone wanting a quiet boiler: it carries Quiet Mark accreditation.
- Busier homes should look at the ecoTEC plus 832 or 835.
Why people choose it
- Quiet: Quiet Mark accredited, so it suits kitchens and open-plan rooms.
- Efficient: 94% efficiency keeps gas use down.
- Compact: Fits most kitchen cupboards.
FAQs
Is the ecoTEC plus 825 big enough for two bathrooms?
It is designed for homes with one bathroom. For two bathrooms, a higher-output model is a better match.
What warranty does it have?
5 years as standard, which can be extended to 10 years when fitted by a Vaillant Advance installer and serviced every year.
Does it need a hot water tank?
No. It is a combi, so it heats water on demand from the mains.
Get your fixed price online
Answer a few quick questions about your home and current boiler. You’ll see a fixed installed price straight away and can book online.