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LARGE HEAT ONLY BOILERS

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Looking to get a 40kw or 42kw heat only boiler for a largish house. already done heat loss to these values. was going to use and pressurise with external expansion vessel. Vaillant tech suggested they had a boiler to suit but i cannot find it? Anyone know if they do one ( it is for domestic use)
failing that any other decent makes do one?

many thanks
 
anything that size for vailant is probably commercial

ecoTEC plus | Vaillant

Vaillant's ecoTEC plus heat only boiler offers homes a high performance and efficiency heating solution. Learn more here.
www.vaillant.co.uk www.vaillant.co.uk

Boilers, New Boilers for Sale, Domestic Boilers Online UK | City Plumbing

Browse our extensive range of boilers, packs, and parts at City Plumbing. Choose the perfect boiler for your installation and central heating system.
www.cityplumbing.co.uk www.cityplumbing.co.uk

Worcester Greenstar Classic 40CDi regular boiler including vertical flue | Wolseley

Looking for a Worcester Heat Only Boiler 112255? Order from Wolseley today - free delivery or click and collect available nationwide.
www.wolseley.co.uk www.wolseley.co.uk
 
Last edited:
Personally if you need an output that large i'd be fitting two 24kw system boilers with a low loss header, least you've got redundancy if one fails. Are you sure you need 42kws?

I've only done one of the 46kw Vaillants once as didn't have room for two boilers, was very impressed. Had Vaillant Controls and a LLH with HW priority.
 

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