Baxi 400 prices
A Baxi 400 boiler costs from £750 to £1,150 for the boiler only and fully installed costs between £2,250 and £3,000, with the price being based on a like for like boiler type replacement. Any additonal complications or extra parts to the job will likely increase the cost.
- The price range for the boiler only is driven by the capacity of the boiler with the range topping 30kW conventional unit costing the most
Prices per model
| Baxi 400 | Fuel | Output | Average Boiler Only Price | Average Price with installation | Quote |
|---|---|---|---|---|---|
| Combi 2.1 | Gas / LPG | 24kW | £750 | £2,250 | Free Quote |
| Combi 2.1 | Gas / LPG | 30kW | £850 | £2,350 | Free Quote |
| Combi 2.1 | Gas / LPG | 36kW | £1,000 | £2,500 | Free Quote |
| Heat 412 | Gas | 12kW | £750 | £2,250 | Free Quote |
| Heat 415 | Gas | 15kW | £850 | £2,350 | Free Quote |
| Heat 418 | Gas | 18kW | £950 | £2,450 | Free Quote |
| Heat 424 | Gas | 24kW | £1,050 | £2,550 | Free Quote |
| Heat 430 | Gas | 30kW | £1,150 | £2,650 | Free Quote |
Baxi 400 boiler range
The Baxi 400 comes as a conventional boiler (launched in 2013) and a combi boiler (launched in 2024). It is more of a value range compared to it's big brother the 800.
- Comes as standard with a 5 year guarantee.
- Available in 3 output levels as a combi and 5 as a conventional so covers nicely requirements for small , medium and large homes.
- Is a compact boiler so fits neatly in a standard sized kitchen unit.
Key features
- Fuel: Gas
- Boiler type & output (kW):
- Combi 24kW, 30kW, 36kW
- Conventional 12kW, 15kW, 18kW, 24kW, 30kW
- Dimensions (mm): 700 h x 395 w x 285 d
- Solar Compatible: Yes
- ErP Efficiency rating: A (93% efficiency in central heating)
- Which? Best Buy Award: no
- Quiet mark accreditation: 33dB to 37dB
- Guarantee: 5 years
- Flow rate: 9.8 to 15litres per minute
- Weight: 17.4kg to 19.5kg
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