800 Combi 2 30kW
Baxi's mid-market combi is the boiler your local gas engineer is most likely to have on the van when a Tuesday breakdown becomes a Wednesday install. Sensibly priced, supported by one of the deepest British installer bases in the market, and quietly improved generation on generation.
- ErP
- A-rated
- Running cost
- £1,140/yr
- Installed
- £2,000 to £2,500 installed
Editorial render. Not a manufacturer photograph; we do not redistribute press imagery without a licence.
Primary question · Is the Baxi 800 the honest replacement when a same-week swap is the brief?
Same-week boiler swaps where your trusted local engineer already fits Baxi every other week.
£2,000 to £2,500 installed
- Honest mid-market pricing
- Wide installer familiarity
- Long warranty for the tier
- Controls UX feels conservative
- Audibly louder at full output than the Viessmann
Open the cost planner to estimate your installed price.
Key specifications
- Output
- 30 kW heating, 30 kW hot water
- ErP
- A-rated
- Hot water flow
- 12.5 L/min at 35°C rise
- Warranty
- 10 years (registered installer)
- , Honest mid-market pricing
- , Wide installer familiarity
- , Long warranty for the tier
- , Controls UX feels conservative
- , Audibly louder at full output than the Viessmann
Worcester Bosch★★★★★Greenstar 4000 30kW Combi- ErP
- A-rated
- Running cost
- £1,120/yr
Same-week boiler swaps3-bed semisService-network buyersReadHouse Verdict8.0/10
Ideal Heating★★★★★Logic Max C30 Combi- ErP
- A-rated
- Running cost
- £1,150/yr
Same-week swapsValue combi installsStandard 3-bed semisReadHouse Verdict7.7/10
If your brief matches "same-week boiler swaps where your trusted local engineer already fits baxi every other week.", the 800 Combi 2 30kW is a confident pick. If it doesn't, the alternatives above are more honest answers.
Estimate your installed cost
The planner uses your specific home; not a brochure number.