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41 guides ·
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HEATING & RADIATORS · 9 STEPS
Add inhibitor to your central heating
Protect a radiator from rust and sludge by dosing the central heating system with inhibitor in one session.
HEATING & RADIATORS · 9 STEPS
Balance your radiators
Balance your radiators so heat spreads evenly across the house, using a thermometer and the lockshield valve on each one.
HEATING & RADIATORS · 8 STEPS
Bleed a radiator
Release trapped air from a radiator so it heats up fully, top to bottom.
HEATING & RADIATORS · 12 STEPS
Clean sludge out of a heating system with a chemical cleaner
Flush sludge from a heating system with a chemical cleaner, then refill and protect it with inhibitor.
HEATING & RADIATORS · 10 STEPS
Drain down a central heating system
Drain a central heating system safely to repair or replace a radiator, valve or pipework.
HEATING & RADIATORS · 9 STEPS
Find out why your boiler keeps losing pressure
Work through the boiler, radiators and pipework in order to find why pressure keeps dropping, and know when to call an engineer.
HEATING & RADIATORS · 7 STEPS
Fit radiator reflector foil
Cut and fit reflective foil behind a radiator to stop heat escaping into the wall, in under an hour.
HEATING & RADIATORS · 7 STEPS
Fix a dripping pressure relief pipe outside
Check your boiler pressure, clear the outside pipe, then know when a dripping relief valve needs a professional.
HEATING & RADIATORS · 9 STEPS
Fix a leaking radiator bleed valve
Stop a radiator bleed valve leaking by tightening, resealing or replacing it, then bleed the system safely.
HEATING & RADIATORS · 9 STEPS
Fix a leaking radiator valve
Find where a radiator valve is leaking, isolate it safely, then tighten, repack or reseal the joint to stop the drip.
HEATING & RADIATORS · 8 STEPS
Fix a radiator that won't heat up
Diagnose why a radiator stays cold, bleed trapped air, check valves and boiler pressure, then test it's fixed.
HEATING & RADIATORS · 11 STEPS
Fix a radiator that's cold at the bottom
Drain, flush and refill a radiator that stays cold at the bottom to clear a sludge blockage.
HEATING & RADIATORS · 14 STEPS
Fix noisy radiators and pipes
Bleed trapped air, secure loose pipe clips and insulate pipes to stop radiators banging, clicking or gurgling for good.
HEATING & RADIATORS · 8 STEPS
Free a stuck TRV pin
Free a radiator's stuck TRV pin so it heats again, using simple tools and careful checks.
HEATING & RADIATORS
Hang a replacement radiator
5 wall types
▾
Solid brick or block
TRICKY
→
Timber stud
TRICKY
→
Metal stud
ADVANCED
→
Dot-and-dab
ADVANCED
→
Lath and plaster
ADVANCED
→
HEATING & RADIATORS · 10 STEPS
Insulate a boiler condensate pipe
Wrap your boiler's condensate pipe in foam insulation to stop it freezing and shutting down your heating.
HEATING & RADIATORS · 9 STEPS
Refill and bleed a central heating system
Top up your heating system's pressure and clear trapped air from radiators safely, without needing a plumber.
HEATING & RADIATORS · 10 STEPS
Refit a radiator after decorating
Take your radiator down for decorating, refit it to the right wall fixing, then reconnect, bleed and test it.
HEATING & RADIATORS
Refix a radiator that's pulling away from a wall
5 wall types
▾
Solid brick or block
MODERATE
→
Timber stud
MODERATE
→
Metal stud
TRICKY
→
Dot-and-dab
TRICKY
→
Lath and plaster
TRICKY
→
HEATING & RADIATORS
Replace a heated towel rail
5 wall types
▾
Solid brick or block
TRICKY
→
Timber stud
TRICKY
→
Metal stud
ADVANCED
→
Dot-and-dab
ADVANCED
→
Lath and plaster
ADVANCED
→
HEATING & RADIATORS · 10 STEPS
Replace a thermostatic radiator valve
Replace a leaking or worn thermostatic radiator valve safely, without draining the whole heating system.
HEATING & RADIATORS · 7 STEPS
Replace a thermostatic radiator valve head
Swap a worn or stuck thermostatic radiator valve head for a new one without draining the system or calling a plumber.
HEATING & RADIATORS · 10 STEPS
Repressurise a combi boiler
Top up your combi boiler's pressure using the filling loop when the display shows low pressure or a fault code.
HEATING & RADIATORS · 8 STEPS
Reset a boiler that has locked out
Check your boiler safely, find the reset button, and get heating and hot water working again in minutes.
HEATING & RADIATORS · 9 STEPS
Set up your heating programmer and thermostat
Learn to set the time, heating schedule and target temperature on your programmer and thermostat, then test it all works.
HEATING & RADIATORS · 10 STEPS
Take a radiator off the wall to decorate
Drain, unhook and remove your radiator safely, decorate the wall behind it, then refit everything without leaks.
HEATING & RADIATORS · 8 STEPS
Thaw a frozen boiler condensate pipe
Thaw your boiler's frozen condensate pipe safely with warm water, then insulate it to stop it freezing again.
HEATING & RADIATORS · 8 STEPS
Turn down your boiler flow temperature
Adjust your boiler's flow temperature to save money and cut waste, without needing any tools or drilling.
HEATING & RADIATORS · 8 STEPS
Work out why you have no hot water
Work through boiler pressure, settings, and pipes step by step to find why your hot water has stopped working.
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