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1997-01-23
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1998-02-16
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1999-01-04
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2001-08-22
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2001-12-28
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1996-07-24
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1996-08-30
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1996-08-30
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1996-09-16
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Central heating boiler controller
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1997-04-14
System for controlling combustion gas temperature in steam boilers
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1999-11-08
Central heating boiler
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1998-03-16
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1997-04-21
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1998-02-25
Improvements in or relating to combination central heating/hot water boilers
GB9601237D0
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1996-03-20
Oil-fired or gas-fired heating apparatus
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2000-02-21
Constant temperature controlling device for gas type water heater
GB9827623D0
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1999-02-10
Improvements relating to furnaces,and to boilers including furnaces