Baxi 800 Repair and Installation London — 25, 30, 35, 40kW Specialist

Baxi 800 — Repair, Servicing and Installation in London

The Baxi 800 is the flagship combi boiler in the current Baxi residential range. It achieves ErP A+ efficiency, operates quietly, is compatible with Baxi’s smart heating controls, and comes with up to ten years manufacturer warranty. Your local Baxi specialist at 247 Plumber London installs, repairs and services the Baxi 800 across the whole of London.

Baxi 800 Models

Model	Output	Best For	Efficiency	Warranty
Baxi 800 Combi 2 25	25 kW	Flat or 1 to 2 bed house, 1 bathroom	ErP A+	Up to 10 years
Baxi 800 Combi 2 30	30 kW	2 to 3 bed house, 1 to 2 bathrooms	ErP A+	Up to 10 years
Baxi 800 Combi 2 35	35 kW	3 to 4 bed house, 2 bathrooms	ErP A+	Up to 10 years
Baxi 800 Combi 2 40	40 kW	Larger house, multiple bathrooms	ErP A+	Up to 10 years

The Baxi 800 is a strong competitor to the Worcester Bosch Greenstar 8000 Style and the Ideal Vogue Max at the premium end of the combi boiler market. For London properties in hard water areas, we recommend combining the Baxi 800 installation with a scale reducer on the cold mains inlet. The 800 is quieter than the Baxi 600 range and produces low enough noise to run unnoticed in open plan living spaces in London’s many converted flats.

Common Baxi 800 Faults

As a current production boiler, the Baxi 800 range has a relatively short field history. The most common callouts we attend are winter condensate pipe freeze causing a lockout, low system pressure lockout from a system leak, and the occasional ignition fault on boilers approaching their first service. All are resolved on the first visit in most cases.