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Heat pumps, solar thermal and biomass each change how a heating system is designed, controlled and looked after. The free question set checks how each one works, what it needs from the building and the cylinder, the safety points that come with burning solid fuel, and the certification and advice a customer should get.
A collector heats a glycol mix that a pump carries to a coil low in the cylinder whenever the collector is hotter than the store. Its output follows the sun, so a boiler or immersion heater tops up the rest.
Revise solar thermal principlesA heat pump moves heat rather than making it, so it delivers several units of heat for each unit of electricity, most of all when the flow temperature is kept low and the building's heat loss is under control.
Revise heat pumps in low-carbon heatingBurning wood needs dry fuel and dry storage, a suitable flue and hearth, a supply of combustion air and planned ash removal, and like any fuel that is burnt it brings a carbon monoxide risk.
Revise solid-fuel and biomass safetyFor a system question, ask what the heat source does well and badly: a solar collector depends on the season, a heat pump works best at low flow temperatures, and a biomass boiler needs fuel storage, a flue and ash handling. For an advice question, look for the answer that is accurate for the customer's home rather than the one that promises most.
A low-carbon heating mock test checks recall without the explanation after each answer, so you see which ideas hold up on their own. Revise these alongside the hot water and central heating sets, since every low-carbon system still depends on them.
The free test offers 5, 10 or 25 questions from this same set, with an optional practice timer. In Test mode, answers and explanations appear after you finish. Repeated tests reuse this bank, so a higher score can reflect familiarity.
Set up a free Low-carbon and renewable heating testNo. These questions cover the principles: how heat pumps, solar thermal and biomass work, what each needs from the building and the hot water system, and the safety points around them. Installing and commissioning a heat pump needs its own training and certification, and grant-funded work goes through an MCS-certified installer.
One comes up often: a heat pump's yearly electricity use, found by dividing the heat the home needs by the heat pump's seasonal performance (SCOP). Check that both figures are in the same units before you divide.
Yes. The Test setup uses 5, 10 or all 25 questions from this set. Choose an optional practice timer and review the explanations after finishing. For broader plumbing revision, add the hot water, central heating and plumbing science sets as well.
All 25 questions on this page are free, with no account or card required. They are selected from the maintained Low-carbon and renewable heating question bank. Premium opens the full bank of 111 questions, more modules and Weak-Spot Review.
A free account saves the answers you give while signed in and lets you continue across devices. Without an account, this browser can remember your place for 30 days; it does not transfer earlier guest answers into an account. Signing up keeps the same free question allowance.