Just a quick query. My RGI has suggested I buy a EcoTec Plus 425 by Vaillant, a 24kw boiler with a 10 yr guarantee. I just checked the Vaillant website and there is no such boiler.... or is there?
Think he means an ecoTEC+ 825... it's a 25Kw boiler with a 10yr guarantee. If you have a dirty system make sure it's properly cleaned (eg: Powerflushed) or your warranty won't be worth anything when the boiler is affected by sludge.
The above assumes its a combi.
If its an open vent heat only boiler it could be an ecoTEC 424.......
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