HOUSEHOLDS in Bolton can save thousands of pounds in gas and water charges by fitting a small - but revolutionary - valve to their hot water supply pipe. The valve is being fitted locally by heating specialists BHE Services (Bolton) Limited and can save up to around £200 per year compared to a typical combi-boiler or instantaneous water heater installation. The valve works by restricting the flow of warm water out of the boiler to 3 litres - until it has heated up. Once the target temperature of 42°C has been reached, the valve opens fully to allow the water to return to full flow.
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