RPL or NVQ for heat pump installers
RPL — Recognition of Prior Learning — assesses experience you already have. An NVQ builds and assesses competence as you go. For an experienced plumber moving into heat pumps, RPL is usually the shorter route, because it is designed for people who can already do the work and need it formally recognised.
What RPL actually is
RPL is not a shortcut around a qualification. It is a route to the same qualification that assesses what you can already demonstrate rather than teaching it to you first. You still evidence competence and you still sit assessments; what you skip is being taught things you have been doing for a decade.
For plumbing and heating, an RPL route to Level 3 typically combines a portfolio of evidence from real work with knowledge assessment — which is where the written and multiple-choice papers come in.
When RPL is the right route
RPL suits somebody who is already working in the trade and can evidence it. The evidence requirement is the constraint, not the exam.
- You have several years of relevant on-the-job experience.
- You can evidence real jobs — photographs, sign-offs, records, references.
- You are qualified at a lower level, or qualified in an adjacent trade.
- You need the qualification for MCS or for an employer, on a timescale an apprenticeship will not meet.
When an NVQ or apprenticeship is the right route
If the experience is not there, RPL has nothing to recognise. Somebody new to the trade, or moving from a genuinely unrelated one, is better served by a route that teaches as it assesses — and will find the assessment easier for having done it.
What the RPL Level 3 ASHP assessment involves
The knowledge assessment is where most people want to know what they are walking into. It covers the science underpinning heating and hot water, health and safety, cold water and hot water systems, central heating, air source heat pumps and the regulations that govern all of it.
From the papers we have analysed, heat pumps and central heating carry the most marks between them, unvented hot water and Building Regulations G3 come up on every paper, and health and safety and the underpinning science are smaller but reliably present. The pass mark is 70%.
- Multiple choice on the underpinning knowledge.
- Written questions requiring an explanation, not a single word.
- Diagram interpretation — S-Plan, Y-Plan, fully pumped systems, refrigeration circuits, G3 discharge arrangements.
- A portfolio of workplace evidence, assessed separately from the papers.
RPL and MCS are not the same thing
A qualification evidences that a person is competent. MCS certification assesses that a business has a system for producing compliant installations. You will generally need the first before you can evidence competence for the second, but passing an RPL assessment does not make you MCS certified, and being MCS certified does not qualify anybody.
Common questions
Is RPL a real qualification?+
RPL is a route to a qualification, not a qualification in itself. Completed successfully, it awards the same qualification as any other route to it — the assessment method is what differs, not the outcome.
How long does RPL Level 3 take?+
The variable is evidence, not study. Somebody with well-documented recent work can move quickly; somebody reconstructing a portfolio from years of undocumented jobs will take considerably longer regardless of how well they know the material.
What is the pass mark for the RPL Level 3 ASHP exam?+
Based on the papers we have analysed, the pass mark is 70%. Our mock exam uses the same threshold.
Do I need G3 as well?+
Unvented hot water storage requires separate G3 competence, and it comes up on the Level 3 paper regardless. Heat pump installations very often involve an unvented cylinder, so in practice most installers need both.