Boilers & Accessories

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Buying guide: Boilers & Accessories

Boilers and accessories brings together gas and oil boilers for homes and commercial buildings, the spare parts that keep them running, and the items that go with them, such as flue kits and terminals, LPG conversion kits, programmers, bypass valves and service kits. With thousands of parts listed, the quickest route is to start from the boiler you have.

Boiler types

  • Combi boilers: compact boilers that give hot water on demand, with no separate storage cylinder or tank.
  • System boilers: work with a hot water cylinder, which suits homes needing more stored hot water.
  • Regular boilers: also called heat only, they need a cylinder and a cold water tank, and are usually found on traditional systems.

In England, Approved Document L expects new and replacement gas boilers on wet heating systems to reach at least 92% seasonal efficiency.

Spares and flues

Match spare parts to the boiler's make and model, and use parts the manufacturer approves to keep it safe and reliable. Flue kits are designed for particular boiler ranges and must not be modified beyond what the fitting instructions describe. Have the boiler serviced every year.

Safety

Work on gas pipework, appliances and their gas parts must only be carried out by a Gas Safe registered engineer; ask to see their ID card, which lists the work they are qualified to do. For oil, OFTEC registered technicians can self-certify that their installation work meets the Building Regulations.

For complete boilers, see domestic boilers; for replacement parts, see boiler spares.

About Boilers & Accessories

BHL lists boilers & accessories products within the Heating & Plumbing range. Sub-categories include Domestic Boilers, Commercial Boilers, Domestic Boiler Accessories and Boiler Spares. Brands with products here include Baxi, Bosch and Worcester Bosch.

What you will find

Brands

Brands with products in Boilers & Accessories at BHL include those listed below, each linked to its own brand page.

Finding products in Boilers & Accessories

Boilers & Accessories splits into sub-categories, domestic boilers, commercial boilers and domestic boiler accessories among them.

Brands with products in boilers & accessories include Baxi, Bosch and Worcester Bosch, and each brand page linked on this page lists that maker's products at BHL.

Boilers & Accessories sits within Heating & Plumbing alongside Underfloor Heating, Pipe Systems & Fittings and other sub-categories.

Boilers & Accessories FAQs

What does the Boilers & Accessories range at BHL include?

Products from the brands linked on this page.

Which brands appear in boilers & accessories at BHL?

Brands with products here include Baxi, Bosch and Worcester Bosch. Each name links to the brand's own page.

How do I find a specific boilers & accessories product?

Narrow the list first: the sub-categories linked on this page each hold a smaller set of boilers & accessories products; the brand pages linked on this page each hold a smaller set of boilers & accessories products, one manufacturer's.

Related categories

More brands in boilers & accessories: Vaillant, Ariston, Grant Boilers, Biasi, Viessmann, Albion, Ravenheat, Alpha Boilers, Keston Boilers, Own Brand, Firebird, Honeywell, Intergas, Sime Boilers, Sime, Glen Dimplex, ATR, ThermaQ, Thermcross, Advanced, Altecnic, Armaflex, Ideal Standard, Anglo Nordic, Warmflo, A J Wells Charnwood, Pro Range, Tower and Zilmet.

Back to Heating & Plumbing, or continue to Underfloor Heating and Pipe Systems & Fittings.