Upgrade your home heating with the Baxi 836 Combi Boiler, a compact and efficient solution designed to fit seamlessly into cupboards or tight spaces. With a 10-year parts and labour warranty, this boiler offers reliable performance and peace of mind for years to come.

Its lightweight design and easy-access features make installation and maintenance straightforward, while the stainless steel heat exchanger and robust brass hydraulic block ensure long-lasting durability. The pre-heated siphonic condensate trap prevents freezing in winter, and the Easy-Fill permanent filling link simplifies upkeep. Compatible with OpenTherm technology and suitable for both Natural Gas and LPG, this boiler is a versatile and modern choice for any home.

Product Details:

  • Lightweight and compact design for easy installation
  • Durable stainless steel heat exchanger
  • Robust brass hydraulic block for reliable performance
  • Easy-Fill permanent filling link for convenient maintenance
  • Pre-heated siphonic condensate trap to prevent freezing
  • Combined PrV with separate drain for easy servicing
  • Removable, easy-access wiring blocks for simple installation
  • OpenTherm technology compatible
  • Works with natural gas or LPG, no conversion kit required
  • Heat output domestic hot water (DHW): 36kW
  • Max DHW flow rate: 15l/min
  • Dimensions: H700mm x W395mm x D285mm
  • 10-year parts & labour warranty for peace of mind (terms and conditions apply)

Included in the Box:

  • Boiler
  • Adey MagnaClean Micro 2 filter
  • Mounting bracket & screws
  • Copper pipe tails
  • Isolation valves
  • Literature & fittings pack
  • Easy-Fill permanent filling link

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 836 Combi 2
MPN 7814306
Boiler Type Combi
Fuel Type Natural Gas/LPG
Height 700 mm
Width 395 mm
Depth 285 mm
Maximum Heat Output CH 25
Maximum Heat Output DHW 36
Maximum DHW Flow Rate 15
ErP Efficiency Rating A
Weight 30.5 Kg
Mounting Wall
Integral Expansion Vessel Size 7 l
Integral Automatic Bypass Yes
Frost Protection Yes
Filling Loop Included Yes
Colour White
Manufacturer Guarantee 10 Years (Terms & Conditions Apply)
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Baxi 836 Combi 2 Boiler Only

  • $2,251.11
  • (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 1 day, 7 hours, 7 minutes