The Baxi 624 System 2 Boiler is a compact and efficient heating solution, perfect for modern homes. Its lightweight design and cupboard-fit dimensions make installation simple, while the stainless steel heat exchanger ensures reliable and energy-efficient performance. Backed by a 7-year parts and labour warranty, this boiler offers peace of mind and long-lasting durability.

Designed to handle even the toughest winters, it features a pre-heated and siphonic condensate trap to prevent freezing, along with a robust brass hydraulic block for added reliability. Compatible with OpenTherm technology and suitable for both natural gas and LPG, the Baxi System 2 is a versatile and future-ready choice.

Product Details:

  • 24kW heating power for efficient performance
  • Compatible with unvented hot water storage cylinders
  • Lightweight and cupboard-fit design for easy installation
  • Stainless steel heat exchanger for energy efficiency
  • OpenTherm compatible for smart heating control
  • Natural gas and LPG compatible for versatility
  • Pre-heated and siphonic condensate trap to prevent freezing
  • Removable, easy-access wiring blocks for simple maintenance
  • Robust brass hydraulic block for long-lasting durability
  • Compact dimensions: H700mm x W395mm x D285mm
  • 7-year parts labour warranty for peace of mind (terms and conditions apply)

Included in the Box:

  • 624 System boiler
  • Wall hanging bracket
  • Copper pipe tails
  • Literature & fittings pack

Additional Information:

  • Delivery service only to mainland UK. Some post codes excluded.

£4.99 Standard Delivery, or FREE on most orders over £99* (some exclusions apply)

£9.99 Next day delivery is available for orders places before 12 noon. Any orders placed for next day delivery after this time, will take 2 working days to be delivered.

Working/delivery days are Monday to Friday, deliveries will not normally be made Saturday or Sunday.

We offer a 30-day returns policy on on the majority of our items*, as long as the item is unused, undamaged and unopened**. We only ask that the postage is covered by yourself. 


* Please see our delivery page for further details on specific exceptions.

** Some products that are made to order or personalised cannot be returned.

***Exclusions apply for items shipped directly from our suppliers, and some big & bulky items may incur an additional charge. Please see our delivery page for full details. 

Boiler Specification
Brand Baxi
Model 624 System
MPN 7802241
Boiler Type System
Fuel Type Natural Gas/LPG
Height 700 mm
Width 395 mm
Depth 285 mm
Maximum Heat Output CH 24
ErP Efficiency Rating A
Weight 30 Kg
Mounting Wall
Integral Expansion Vessel Size 7 l
Frost Protection Yes
Colour White
Manufacturer Guarantee 7 Years (Terms & Conditions Apply)
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Baxi 624 System 2 Boiler Only

  • £1,504.51
  • (FREE UK Delivery)
Item in Stock   |   Usually dispatched within 24 hours
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Free UK Delivery on most orders over £99
Delivery Rates & Information

Delivery Options

Standard Delivery: £4.99 - Free for all orders over £99.*
Next Day Delivery: £9.99 - Available for orders placed before 12:00 PM (Noon).

Important Delivery Notes

Next Day Delivery Cut-off: Orders placed after 12:00 PM (Noon) using Next Day Delivery will be delivered within two working days.
Working Days: Our standard delivery and shipping days are Monday through Friday. We do not normally deliver on Saturdays or Sundays.

Easy 30-Day Returns

We want you to be happy with your purchase! We offer a 30-day returns policy on all items, provided the following conditions are met:
  • The item is unused and undamaged.
  • The item is returned in its original packaging.
  • The customer is responsible for the return postage costs.

Combining Your Order

We always strive to combine your order into a single delivery. However, your order may arrive in multiple shipments if it contains:
  • Items from different warehouses (Standard items).
  • 'Direct' items (These are shipped separately and directly from the supplier) and will arrive separately from other items in your order.

*Exclusions & Additional Charges

The following items may be excluded from standard shipping rates or may incur extra delivery charges:
  • Items Shipped Directly from Suppliers ('Direct' items).
  • Certain Large or Bulky Items.
Want it by Thursday 15th October? Order within 2 days, 13 hours, 22 minutes