Category Archives for Heating

Treating Walls for Interior Condensation

Interior Condensation: Kitchen and bathroom walls that run with water are the result of a natural occurrence. When water is heated it becomes steam, which expands and rises to meet the cold upper surfaces of walls and ceilings, where it … Continue reading

05. July 2011 by admin
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Insulating Central Heating Pipes and Tanks

Insulating cold water supply pipes and storage tanks is a vital precaution against winter freeze-ups. But on hot pipes and the hot water cylinder, insulation can play another, equally important role — by keeping valuable heat sealed in and cutting … Continue reading

04. June 2011 by admin
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How to Fit a New Radiator Valve

Before fitting a TRV, start the system from cold and find out which pipe on the radiator gets hot first. The new valve must go on this side, irrespective of whether the current valve is a hand-wheel or lockshield. It’s … Continue reading

04. June 2011 by admin
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How to Fit Radiator Valves

FITTING NEW RADIATOR VALVES Fitting new radiator valves to replace ones which are old, jammed or leaking is a fairly straightforward plumbing job. However, you can use the same techniques to replace conventional valves with thermostatically controlled models (TRVs), so … Continue reading

26. May 2011 by admin
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Central Heating Repairs: The Programmer

CHECKING THE PROGRAMMER It’s not possible to repair a programmer, so if it proves to be faulty it must be replaced. But first, make sure the connections between the programmer and its backing plate are sound. ♦ Turn off the … Continue reading

26. May 2011 by admin
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How to Check Central Heating Control Valves

CHECKING CONTROL VALVES The control valve in question may have a coloured indicator or pointer to show it is working. If not, carry out the tests shown here: Some makes of valve cannot be serviced, and if jammed or faulty … Continue reading

26. May 2011 by admin
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Central Heating Repairs: Checking the Thermostats

CHECKING THE ROOM THERMOSTAT One of the first things to check on a room thermostat is that nothing in the immediate environment is triggering the heat sensor. Strong sunlight or a nearby fan heater will trip it prematurely, turning the … Continue reading

26. May 2011 by admin
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Central Heating Repairs: System Controls

CENTRAL HEATING REPAIRS – CONTROLS Gas and oil-fired ‘wet’ (ie. water-circulating) central heating systems rely on a series of electrical controls to turn the boiler on and off and monitor the output of heat or hot water. If one or … Continue reading

26. May 2011 by admin
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Central Heating Problems: Radiators

CURING RADIATOR PROBLEMS Airlocks It is quite normal for small amounts of air to become trapped in the system and work their way round to the radiators, causing parts of them to go cool or cold. Cure this by bleeding … Continue reading

26. May 2011 by admin
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Central Heating Repairs: Easy to Follow Guide

CENTRAL HEATING SYSTEM Although water-filled (‘wet’) central heating systems vary widely in design, most work on the same basic principle and share the same basic problems. The majority of faults are easy to trace, and many can be put right … Continue reading

26. May 2011 by admin
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