Plumbing & Heating

Plumbing & Heating

Combi Boiler

What is a combi boiler? Plain-English definition of combination boilers, how they work, how they compare to system and conventi...

Read definition Plumbing & Heating

Expansion Vessel

What is an expansion vessel? Plain-English definition of expansion vessels in sealed central heating systems, how they work, co...

Read definition Plumbing & Heating

Immersion Heater

What is an immersion heater? Plain-English guide to immersion heaters in hot water cylinders - how they work, wiring requiremen...

Read definition Plumbing & Heating

Isolating Valve

What is an isolating valve? Plain-English guide to isolating valves in plumbing systems - service valves, gate valves, ball val...

Read definition Plumbing & Heating

Pressure Relief Valve

What is a pressure relief valve? Plain-English guide to PRVs in heating and hot water systems - how they work, the difference f...

Read definition Plumbing & Heating

Radiator

What is a radiator? Plain-English guide to central heating radiators, how they work, sizing in BTUs and watts, thermostatic rad...

Read definition Plumbing & Heating

Stopcock

What is a stopcock? Plain-English definition of internal and external stopcocks, where they are located, how to operate them, a...

Read definition Plumbing & Heating

Thermostatic Radiator Valve

What is a thermostatic radiator valve (TRV)? Plain-English guide to TRVs on heating systems - how they work, where they should ...

Read definition Plumbing & Heating

Trap

What is a plumbing trap? Plain-English definition of water traps in drainage systems, how they prevent foul smells, the differe...

Read definition Plumbing & Heating

Unvented Cylinder

What is an unvented cylinder? Plain-English guide to unvented hot water cylinders (Megaflo type) - how they work, the G3 Buildi...

Read definition