shower water uses 20KWh/day!!!

stewmc

Your Boiler is a System boiler!!

It gives you central heating and hot water(via ) a cylinder

Its defo not a combi:j

nathanimate

The British Gas technician told me that the system is incorrectly wired. The timer panel switches on alright, but the boiler only gets a signal for CH not for hot water. So it doesn't fire up when HW timer goes on. He even connected the timer's water cable onto the 'live' cable and still no response from the boiler. Hence, we only have hot water through the immersion heater, which takes up loads of electricity every time we switch it on.

espresso

nathanimate wrote: »

The British Gas technician told me that the system is incorrectly wired. The timer panel switches on alright, but the boiler only gets a signal for CH not for hot water. So it doesn't fire up when HW timer goes on. He even connected the timer's water cable onto the 'live' cable and still no response from the boiler. Hence, we only have hot water through the immersion heater, which takes up loads of electricity every time we switch it on.

So simply use the CH timer to control the boiler on time. There is a motorised valve to control if the output from the boiler goes to the heating or to heat the hot water tank. Use the timer to fire up the boiler when you want it to come on and use the room stat or radiator valves to control the heating i.e. stop it heating when not required. Using gas would be so much cheaper!

James123_2

nathanimate wrote: »

The British Gas technician told me that the system is incorrectly wired. The timer panel switches on alright, but the boiler only gets a signal for CH not for hot water. So it doesn't fire up when HW timer goes on. He even connected the timer's water cable onto the 'live' cable and still no response from the boiler. Hence, we only have hot water through the immersion heater, which takes up loads of electricity every time we switch it on.

As your property is rented then the landlord should sort this one for you ASAP!

nathanimate

espresso wrote: »

So simply use the CH timer to control the boiler on time. There is a motorised valve to control if the output from the boiler goes to the heating or to heat the hot water tank. Use the timer to fire up the boiler when you want it to come on and use the room stat or radiator valves to control the heating i.e. stop it heating when not required. Using gas would be so much cheaper!

So if I switch on the heating, turn all the room thermostats and radiators down to zero, will I be warming up just the water? To check that this will work, will I expect to see the temperature on the immersion tank thermometer rise, or is that independent of the central heating system??

nathanimate

I have switched on CH with radiators and thermostats off. The flame in the boiler lights up for a few seconds and goes out, but the boiler seems to be still working judging from the sounds and the boiler pressure rises from 1 to 1.5. Occasionally, the flame goes back on with a sudden jerk in the boiler's pressure (1.5 to 2 to 1.5 again) and off again in a few seconds. Also, I can feel one of the pipes from the boiler to be hot. However, there is no hot water anywhere in the house and the pipe leading from the boiler to the immersion tank is cold when I touch it.

Talldave

Surely, unless there's a signal calling for hot water, the motorised valve isn't going to circulate hot water from the boiler through the tank is it?

espresso

Talldave wrote: »

Surely, unless there's a signal calling for hot water, the motorised valve isn't going to circulate hot water from the boiler through the tank is it?

The normal unenergised position of the motorised valve allows the water to flow from the boiler though the water tank, due to the return spring. There is a manual actuator lever on the end of the valve where the cable enters, which allows the valve to be operated manually.

It appears that the OP needs someone who actually knows what they are doing from the strange questions e.g."will I expect to see the temperature on the immersion tank thermometer rise" - the temperature gauge on the tank registers temperature regardless of heat source!

nathanimate

SUCCESS!!! you are right I am not an expert. BUT, i have switched the valve on the flow pipe from boiler to tank to manual, switched on CH with all radiators OFF, and I now have hot water!!!
so thank you for that. Now all I have to do is set CH to come on perhaps twice daily, to keep the water in the tank at the desired temp.

albyota

get a sparkie in to check the motorised valve is correctly wired, difficult to tell from the pics but looks like a mid position valve i.e. a 'Y' plan system, generally this is meant to open from signal from programmer via cylinder stat, once open it sends a signal to the boiler to fire up, the motorised valve automatically closes on spring return once the cylinder is satified.

Edit: Just saw the updated pic, much clearer, it is not 'Y' Plan - your system is 'S' Plan, they are 2 port valves....... one for heating, one for DHW...