Central heating bungs are a super handy tool used to temporarily seal or block pipes in a sealed (pressurized) central heating system, usually so you can work on radiators, valves, or pipework without having to drain the whole system. Here’s a breakdown of how they work and when you’d use them: ⸻ Purpose: Central heating bungs allow you to: • Isolate parts of your heating system. • Replace or repair radiator valves. • Avoid draining the entire central heating system (which saves time, water, and
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