Regardless of your property type, it is essential to find a boiler that suits your home’s requirements.

Different home sizes require different combi boilers, and the setup of your current heating system will determine what boiler to go for as well.

Do you own a large house, from three bedrooms onwards? No problem, as you can find the best combi boiler for large properties. Big houses tend to have a high demand for hot water and heating.

What makes the combi boiler more ideal is the fact that it allows you to control your central heating and hot water supply from just one central point. Besides, the boilers don’t require additional storage tanks or hot water cylinders, making them space efficient.




However, since the combi boiler controls your hot water and heating systems from a central unit, you’d go for a high-end model that’ll successfully provide adequate warmth for your large home.

Thus, if you have a big house with multiple bathrooms, toilets and bathrooms, you should consult a heat engineer to establish the right type of boiler for you.

What to look for when buying the best combi boiler for large house

When purchasing a new combi boiler for a 4 bedroom house or any other large property, you should look at two important aspects: water flow rate and the heating output.

This is paramount because you need a boiler that can heat up all of your rooms while maintaining a steady flow of hot water on demand, in different rooms, at any time.

It’s recommended that you start by talking to a combi boiler installation expert or a heating engineer before buying it. They’ll guide you on the best heating outputs and flow rates for your property. Once you have this information, you can search for the cheap combi boilers that are available.

The other bonus is the size. Most modern combi boilers are small in spite of their compactness. And most of the advanced combi boilers have extremely high-performance capabilities.

The popular combi boilers for large homes include Worcester, Vaillant, and Ideal.

Worcester Combi Boilers for Large House

Worcester has a great inventory of combi boilers that suit large homes. The two popular ones include:

  1. Worcester Greenstar 38 CDi gas combi boiler

Its heating output is 30kW. The flow rate is 16.4 liters per minute, and the output is 100,000 BTU/H

  1. Worcester Greenstar 42CDi

Its heating output is 30kW with a flow rate

Worcester Greenstar combi boilers come with a 5 years warranty that you may want to take advantage of.

Vaillant Combi Boiler for Large House

Vaillant have several combi boilers that are ideal for larger properties. Examples include:

  1. Vaillant ecoTEC Plus 938
  • Has a heating output of 28kW
  • An output of 95000 BTU/H
  • A flow rate of 15.9 liters per minute
  1. Vaillant ecoTEC 835
  • Heating output of 31kW
  • Flow rate of 14.3 liters per minute
  • Output: 105000 BTU/H
  1. Vaillant ecoTEC 838
  • 28kW heating output
  • 9 liters per minute in flow rate
  • Output: 95000 BTU/H

Ideal Combi Boiler for Large House

All Ideal Logic Plus combi boilers come with a 7-year warranty. The one most suitable for large homes is Ideal Logic Plus 35 HE combi boiler. It has 35kW output, a flow rate of 14.5 liters per minute and 120,000 output (BTU/H).