Advice on system boilers

Question

Hi there, I’m wondering what is the best system boiler on the market? Or which are some of the best system boilers? What are the benefits of a system boiler? What can I expect specifically to improve if I were to buy a more premium quality system boiler as opposed to a regular or budget option? Thanks!

Lee · Answer

Good afternoon, most boilers these days are as good as one another Vaillant, Worcester and the new Ideals are the top three we fit alot of Ideals as they aren't as expensive as the other two and are very reliable with warranty. System boiler you have the advantage of a back up hot water tank should the boiler fail but combi's you gain space and pressure hope this helps any futher assistance please get in touch.

kind regards Lee @ Leeflame Gas and Heating Services ltd

Jim · Answer

System boilers are a heat source that typically only differ from a heat only boiler in that they have their own internal pump.

System boilers are typically on a pressurised system whereas a heat only boiler will typically be on an open vent system. Although some heat only boilers can be pressurised.

System boilers are typically used in conjunction with a hot water cylinder most modern cylinders are unvented.

The system boiler needs to be controlled by a programmer in conjunction with room and hot water thermostats. Zone valves are used in conjunction with the electrical controls to control the flow of primary water within the system.

Boilers vary considerably in quality and price. The more expensive boiler should have a stainless steel heat exchanger rather than aluminium alloys on cheaper models.

Consider Vaillant eco tec plus 6 series , ideal Vogue Max system boiler.

Guarantees up to 10/12 years.

James · Answer

Valliant boilers are the best in my opinion of installations.

Simon · Answer

I would stick with Baxi or Vailaint 

They are built to last
Premium boilers have brass components unlike Worcester’s or cheaper brands that are built out of a type of plastic. Heat and plastic don’t go well as it goes Britle or warps under heat. When brass dosent 

Premium boilers normally come with a filter and ten year warranty 

Thanks

Colin · Answer

Worcester, Bosch and Vaillant are the market leaders with longer warranties.

Johnson · Answer

I will advise you to go for a combination boiler for its immediate hot water and heating.
But if your present boiler is a system and you want to keep same, you should go for Vaillant or Baxi for the long warranty of 8 to ten years

Adrian · Answer

I Prefer Baxi Boilers & They Come With A 7 Year Or 10 Year Warranty ( STC ), Worcester / Bosch Also Have 10 Year & Vaillant But Both Are More Expensive!

Advice on system boilers

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