Fitting central heating controls

Fitting central heating controls in Bromley South East London, involves a lot more than just connecting a timer and a thermostat.
A central heating system without working controls can easily use 20% more gas than needed. Good controls also make your home a lot more comfortable. Fitting central heating controls sounds interesting to you, call your local central heating engineer for Bromley and southeast London

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Even the best thermostats and timers or programmers will only work properly when the radiators are large enough to heat the space. The draught should also be limited to normal ventilation levels.
It is quite possible that a rather poorly performing central heating system is not down to a dead boiler, but only a fault in the controls like the timer/programmer the thermostat or a diverter or zone valve, but unscrupulous people may use it as a lever to scare you into buying a new boiler. Don't fall for it; the link below shows you some of the most common cons and rip offs about central heating and gas boilers.

How to avoid the most common cons and rip offs
If you have a central heating system with a cylinder, a programmer that allows you to set the hot water and heating so that they are never on at the same time will give you a much improved performance of both. They are known as independent timers.

Draught and central heating controls

If there is a lot of draught, which is not unheard of in Bromley or south east London it will be very hard if not impossible for the central heating system to warm your home adequately, and the best heating engineer in the world can't change that. The same goes if the radiator is too small for the space it is in. With modern controls, radiators can't be too large as they will be automatically turned off when the room is warm enough.
A Thermostatic Radiator Valve or TRV, is an automatically opening and closing radiator valve that opens when the room gets below the set temperature, and closes itself when the room is warm enough.
A TRV is not a calibrated thermometer, hence the number/setting on it is a mere indication.
The optimum balance between comfort and saving gas/money is achieved by finding the appropriate setting for a room, and leaving it there.
After installing a system I tend to set them as follows in the South East London area: Spare room and utility room: 1. Bedroom, hallway and landing: 2 Kitchen and dining room: 3 Bathroom: 4 This is a only a DEFAULT setting, acceptable for most people as a starting point.

There is no point in adjusting TRV settings constantly, and I recommend to all my clients to adjust TRVs no more than once a day by half a point.
After two or three days the temperature in each room will have been set, and you never need to look at it again. This one of the advantages of fitting central heating controls properly according to a lot of people in Bromley

Technical details of central heating controls

The roomstat controls the temperature in the room where it is installed, NOT the average temperature in the house. It turns the boiler on and off whenever needed. Contrary to what a lot of people seem to think, it does not make the radiators hotter. Turning the room thermostat to maximum does not make the boiler work harder, nor does it reduce the warm up time. But unless you remember to turn it down, it will increase your gas bill.

In the old days when fitting central heating controls in South East London was limited to a mechanical roomstat, it was often installed in the hallway because that was the central point in the house. Although this works, a roomstat in the lounge gives higher comfort levels, especially in fair sized houses like you find in Bromley.

Conventional roomstats, the round dial on the wall, are quite inaccurate. They usually have a couple of degrees between on and off, and also one or two degrees difference between the temperature set to come on, and when they actually do so. Therefore the temperature indicated on the dial can easily be 3 degrees off from what it actually is.
Digital roomstats are far more accurate. The popular Honeywell 0.5 degrees and my personal favourite, the Siemens 24 REV achieves a precision of 0.2 degrees Celsius.

The boiler stat (boiler control) determines how hot your radiators get. It does NOT control the temperature in the house. On older boilers, the non-condensing, lowering the boilerstat does not bring any noticeable savings in the gas use, and is best left at 70 to 75 degrees Celsius. This is something a lot of heating engineers in South East London forget to tell their clients.

Fitting central heating controls for condensing boilers

Condensing boilers are more efficient when operating at lower temperatures, and turning them down can bring savings of up to 10% compared to running them at maximum. For optimum savings, set the boiler thermostat of a condensing boiler at a relatively low setting, and only turn it up when the house is frequently too cold, or often takes too long to warm up.

After fitting central heating controls, all the separate parts need to be set up to work harmoniously.
Balancing a central heating system with a condensing boiler, TRV's and a digital roomstat, is a complex process requiring in depth knowledge and test equipment to get it fully right. When installed properly by a good hearing engineer, it should not need adjusting between services and is best left to the heating engineer who looks after your boiler.

The above is the basis for small and medium sized houses using regular gas central heating as is typical for Bromley south east London.
Large systems, by which I mean 20 radiators or more, can be more complex.
Homes that have dual fuel are also be more complicated when it comes to fitting central heating controls. Dual fuel is this scenario can be any combination of gas, electricity, solar panels, photo voltaic panels, wind energy, oil and any form of solid fuel.

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