Valliant Ecopure 830 or Eco Pro 28

Which ever make or model you decide upon it is most important that your existing heating system is cleaned before the new boiler warranty/guarantee is registered with the manufacturers. There are two methods we employ as heating engineers, the first is a simple chemical dosing clean using suitable cleaning agent designed for this purpose or if you have a very contaminated system then the most effective way is a Power flush. Your preferred installer should know which method to employ, after the system is cleaned thoroughly then a good quality magnetic filter is always a must. This item of equipment will ensure your system remains clean and maintains the efficiency of both boiler and heating system too.

If the boiler is an ecoFIT pure I would recommend you go with the ecoTEC pro as it is fitted with a stainless steel heat exchanger which is higher quality and longer lasting than the aluminum heat exchanger of the ecoFIT.

Valliant Ecopure 830 This Appliance is lighter (33kg) slightly smaller in size, Has better kw input, it is quieter, the flue can be fitted for those areas where a flue won't fit on top as the flue can be fitted hidden. From the write up of both boilers and given they both have 5 year warranty I would go for the 830 for sure. The other answer is ok but it still did not answer which boiler is better! Go for the 830.

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