Low-carbon heating, the water side
Central Heating · Plumbing
Familiar water-side skills remain relevant when the heat source changes.
Heat pumps move thermal energy, while solar thermal collectors deliver heat from sunlight. Suitable emitters, sensible controls and verified system performance remain central concerns.
This is a brief introduction ahead of a planned heat pump course, with no refrigerant-work instructions. Scheme certification and any public funding have separate conditions; check the current official terms rather than relying on a course badge.
Start with the building and the water system
Updated
How to reason about the system
A different heat source still needs a suitable load assessment, emitters and controls. This introductory lesson connects existing plumbing principles to heat-pump water-side learning and distinguishes solar heat from solar electricity.
Questions to take further
- Does this introduction authorise refrigerant work?
- No. It is learning about system roles. Specialist work, certification schemes and funding eligibility each have their own requirements.
Sources
- GOV.UK: Approved Document L — Guidance for England on energy efficiency, including heating controls when a boiler is replaced; guidance is not itself the legislation.
- Skills England: plumbing and domestic heating technician — The systems, materials, planning and customer responsibilities in the England occupational standard.
Free interactive sample
Choose an option, check it and retry here. No account, payment or energy needed. These public samples are separate from your learning path; progress is not saved.
Original plumbing learning material. For revision only; do not use samples to guide work on site.
Learning content, not a qualification: it won't make you competent, certified or registered. Follow the regulations that apply and a qualified plumber before acting. About our content
Lessons on the plumbing path
- Low-carbon heating: your next course
Terms to know
Before you start: some plumbing work is regulated or notifiable
Some water fittings work needs notice to, and consent from, the water supplier before it starts. Check the rules where you live.
Gas work is for competent workers covered by a Gas Safe registered business in Great Britain. Northern Ireland has separate gas regulations. Do not work on gas pipes or appliances yourself.
In England, installing an unvented hot-water system over 15 litres is notifiable building work: use a competent installer registered with a competent-person scheme, or tell building control before work starts. Leave this work to a suitably skilled person.
Wales, Scotland and Northern Ireland have their own water and building rules; check which apply before work starts. Electrical connections belong with an electrician.
This guide does not qualify you or make you competent, approved or registered for plumbing, gas or unvented work.