New house: can't figure out the various dials...

JamesP1701

Hi all,

My wife and I moved into a new house and for the life of us we can't figure out which bit relates to the other.

1. In the kitchen we have a timer:                                                                                

2. Then we have this on the boiler-I can only control the temperature on the right never on the left for taps:

                                                                               

3. And we have this on the hallway wall:
                                                                               

I can't understand how they all connect to each other: for example, how does the temp on the boiler relate to the control in the wall? We've just had a large has bill and have been advised to run the heating on low during the day and all night on an even lower setting, rather than turn it up high when needed.

Would really welcome any help and thoughts.

James

stephenc

The timer in the kitchen looks like your main controller. This should be used to setup when you want the heating on and off and at what temp. The room thermostat in the hallway is telling the timer in the kitchen if the room temp is below or above what you set in the timer. So, 4:30-10pm at 21c for example, if the room thermostat is at 20, it will tell the boiler to switch on the CH until the room thermostat is at 21. No idea about the water temp, do you have a combi or system boiler?  You're probably better off asking for help in the general chat heating/boiler thread.

neilball

Normally the heating timeclock relay and thermostat relay are wired in series, so the timeclock has to be 'on' and the stat has to be calling for heat to allow the heating to run. If you have a conventional hot water cylinder in the house then your hot water timeclock and cylinder thermostat are wired in series too. Normally there would be either 2 motorised valves (one for heating and one for hot water) or a three port valve controlling the flowing water to the heating and hot water based on when the controls call for heat. The valves also 'tell' the boiler when to fire ie they have to be open before the boiler fires and the pump runs.

If your boiler is a combi then the heating controls wire direct to the boiler usually without any motorised valves in the pipe work.

Rodders53

Find the model numbers of the bits and go online to find the instruction manuals... and   {also check if any paper manuals were left by the previous owners}.

Boiler:   Says the system (radiator) circulating water temp is set to 63 Celsius.   Inability to control the 'taps' temperature says it's a system boiler not a combi so no direct hot water but a storage tank.  (post #3 explains how they tend to work).

A quick google suggest the HONEYWELL ST9400 programmer series Programmers - Honeywell UK Heating Controls will be the one in the kitchen and DT92E Wireless Digital Thermostat - Honeywell UK Heating Controls is the room 'stat.

You need to look at the house insulation (roof, walls hot water tank etc.,.)  room radiator thermostat settings (do't heat unused bedrooms to the lounge temperature), draught-proofing etc.,.   Next check that the heating is not coming on at a silly temperature when you are not in the home,  or too early before you get up / still on after you're in bed...  Adjust the timer programmer to suit you.

To do what has been suggested to you (run low temp in day and also overnight) would require a programmable room thermostat (I don't think your one is programmable like that) and leaving the heating programmer on 24/7...  such a device may not save any money anyway.

Do also double check the meter readings are correct and that you are on the best possible tarrif / energy supplier.

blankscreen

I'd say for your own safety get your system serviced even if it is claimed it has been recently.

The engineer will check how it has been installed and likely advise how or the best way to use it.

TBH i found the Hive (first version) system excellent, on a condensation boiler. We only heat in gas, have electic double oven and induction hob (superb).

We 'budget pay' duel fuel @ £82.00 pcm (EDF) for us this works out fine.

The Hive reports our average monthly temperature which is 1 or 2 degree lower than average.

My wife part times 3 days a week, and my hours are erratic (being self employed small buisness from home).

I await to be shot down, but i was advised in a previous town house the thermastat should be in your comfort area i.e. the Lounge, which makes good sense to me, then by trial an error set your lounge radiator state low but others to what you want.

Idea being if you have your lounge radiator stat is at 20, it will turn the wall stat off well before your other rooms can get to a warm temperature, so make this state lower, then heat from the hall rad etc help turn off the lounge wall stat.

Rooms that are not used much are left very low to stop freezing.

Recommend cavity insulation and good loft insulation.