Which boiler should I get? Which boiler do I need? We get asked these questions so frequently that we thought we’d offer some advice based on our years of experience.
The information offered here is simply a set of guidelines to help you get started. If you are considering replacing your boiler it’s essential that you ask a qualified installer to carry out a survey of your central heating and boiler system so that they can provide an accurate quote.
Our Gas Safe registered engineers are trained to work on …
Best for 1 & 2 bedroom
If you live in a 1 or 2 bedroom house, or apartment, with a single bathroom then you will probably be better off choosing a small combi boiler. Smaller properties, with up to 10 radiators, will typically need a boiler output of between 24-27kW.
Your property:
- 1-2 Bedrooms
- 1 Bathroom
- up to 10 radiators
You’ll need:
- Energy: 24-27kW
- Approximate installation price: £1650-£1850 +VAT
| Boiler Model | Type | Energy | Approx Installation Cost |
|---|---|---|---|
| Worcester Greenstar 24i Junior | Combi | 24kW | £1750 |
| Vaillant ecoTEC Pro 28 | Combi | 24kW | £1650 |
Best for 3 bedroom
If you live in a 3 or 4 bedroom house with a single bathroom and a further en-suite, with up to 15 radiators. you’ll have a wider choice of boiler based on your heating and hot water requirements. A higher capacity combi boiler with 28-34kW could potentially be the right choice and is a good choice is space is a concern. A conventional, or regular, boiler with a water storage cylinder might also be a consideration. Talk to use by calling 020 3880 5666 to discuss your requirements in more detail.
- 3-4 Bedrooms
- 1-2 Bathrooms
- up to 15 radiators
- Energy: 28-34kW
- Approximate installation price: £1850-£2050 +VAT
| Boiler Model | Type | Energy | Approx Installation Cost |
|---|---|---|---|
| Worcester Greenstar 34CDi | Combi | 30kW | £1950 |
| Vaillant ecoTEC Plus 837 | Combi | 28kW | £1850 |
| Worcester Greenstar FS 30CDi | Regular | 30 | £1850 |
Best for 4 bedroom
A larger 4 bedroom house typically has higher water and heating demand so will, therefore, require a bigger boiler. Combi boilers aren’t recommended for homes with more than 2 bathrooms because they don’t cope well with multiple hot water taps, including showers, being used at the same time. However, in some cases, a powerful combi boiler may be the right choice depending on your requirement and available installation space.
- 4+ Bedrooms
- 2+ Bathrooms
- up to 20 radiators
- Energy: 35-42kW
- Approximate installation price: £2250-£2450 +VAT
| Boiler Model | Type | Energy | Approx Installation Cost |
|---|---|---|---|
| Vaillant ecoTEC Plus 438 | Regular | 38kW | £2450 |
| Worcester Greenstar 42CDi | Combi | 30 | £2250 |
| Bedrooms | Bathrooms | Boiler Size |
|---|---|---|
| 1-2 | 1 | 24-27kW |
| 3-4 | 2 | 24-27kW |