Renewable Energy

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Buying guide: Renewable Energy

Renewable energy products use heat from the outside air, the sun or wood fuel to heat homes, buildings and hot water. The range includes air source heat pumps and their hot water kits, solar thermal pump stations, controllers, expansion vessels and solar fluid, twin coil hot water cylinders, plate heat exchangers and buffer stores, and biomass pellet boilers and stoves for homes and larger buildings.

Heat pumps

An air source heat pump takes heat from the outdoor air and moves it into the heating and hot water system. Outputs are given in kW, and the heat pump should be sized to the heat loss of the building. Heat pumps run at lower flow temperatures than most boilers, and at those temperatures a radiator gives only about half its rated output, so radiators may need to be larger. In England and Wales, the Boiler Upgrade Scheme for heat pumps and biomass boilers requires an MCS certified installer.

Solar thermal and cylinders

Solar collectors heat a glycol-based antifreeze fluid that a pump station circulates through a coil in the hot water cylinder. A twin coil cylinder has two coils, one above the other: the lower coil takes the solar circuit and the upper coil the boiler or heat pump, which tops up the heat when the sun alone is not enough. Unvented cylinders must be installed by a competent person under Building Regulations Part G (G3).

Biomass

Pellet boilers and stoves burn wood fuel and need a suitable flue, and their installation must meet Building Regulations Part J. HETAS is the competent person scheme for solid fuel and biomass appliances. Any work on the refrigerant circuit of a heat pump needs an F gas certified engineer.

For circulators, see pumps; for hot water storage, see unvented cylinders.

About Renewable Energy

BHL lists renewable energy products within the Heating & Plumbing range. Brands with products here include Pump House, Balcas and Vaillant.

Brands

Brands with products in Renewable Energy at BHL include those listed below, each linked to its own brand page.

Finding products in Renewable Energy

Renewable Energy has no sub-categories: all of its products are listed on this page.

Brands with products in renewable energy include Pump House, Balcas and Vaillant, and each brand page linked on this page lists that maker's products at BHL.

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

Renewable Energy FAQs

What does the Renewable Energy range at BHL include?

Products from the brands linked on this page.

Which brands appear in renewable energy at BHL?

Brands with products here include Pump House, Balcas and Vaillant. Each name links to the brand's own page.

How do I find a specific renewable energy product?

Narrow the list first: the brand pages linked on this page each hold a smaller set of renewable energy products, one manufacturer's.

Related categories

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