The Baxi
800.
A 30kW combi boiler from Baxi — installed in a single day by Gas Safe registered engineers.
Built for real homes.
Not showrooms.
The Baxi 800 30kW is designed to work quietly, efficiently, and reliably — for years to come.
- Stainless steel heat exchanger
- OpenTherm technology
- 30kW heat output — Combi boiler
- 25kW central heating output
- 12.2 L/min hot water flow rate
- 10 year manufacturer warranty
- 94% ErP efficiency rating
One price.
Everything covered.
No surprise add-ons. Your quote covers everything needed for a complete installation that meets all gas safety regulations, carried out by Gas Safe registered engineers.
Price and installation time varies depending on your installation requirements. Answer a few quick questions to get your exact fixed price.
Get your free quoteThe numbers
that matter.
Baxi 800 30kW
The Baxi 800 30kW is a reliable mid-range combi boiler suited to small and medium-sized homes with one to two bathrooms and a higher demand for heating and hot water.
It delivers a hot water flow rate of 12.2 litres per minute — enough for a comfortable shower without pressure drops — while running at 93% efficiency to keep energy bills in check.
The compact design fits inside a standard kitchen cupboard, and the built-in pipes-behind facility keeps everything tidy. An included Adey MagnaClean Micro2 filter protects the system from sludge and magnetite from day one.
Compatible with Baxi uSense smart controls and certified hydrogen-blend ready, the 800 30kW is a solid, practical choice that's built to last.
Don't let cost get
in the way of warmth.
Spread the cost of your new boiler over monthly payments that fit your budget. Available through iDeal4Finance — apply in minutes.
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