- Joined
- 27 Apr 2008
- Messages
- 9,670
- Reaction score
- 953
- Country
howdy,
My aged mother in law has just had her meters changed to smart meters.
The EDMI ES-12B electric meter - can someone confirm if this does Economy 7 ?
She has a Horstmann Electronic 7 Maxistore E7 controller in the kitchen and no user manual
and has just been pressing the boost button when needed for hot water with the heating coming on at about 10:30PM -6:30AM.
(Searches for the manual show a newer model, this is an older model)
After the meter change the controller seems to have reset it's times, so I reset the summer on/off boost period to the above times (the on & off were both set to 1am).
Heating worked OK but she had no hot water in the morning.
She seems sure that she would see a light after 7am to say the water was on. (although could be oldfuddled).
Looking at the wiring into it, it only has 1 wired output (red&black wires) which to me looks as if both storage heating and immersion are on the same circuit.
How will this be wired? with 4 heaters I can see this pulling a lot more current than the little relay inside the controller can handle?
She has a fuse centre next to her fuse box that seems to have individual fuses for each boiler so I assume they are individually wired, will there be a contactor inside there controlled by the timer?
ALso, if the immersion tank is on the same circuit this would suggest that she is heating it all through the night when it only needs a short time to heat up so would it be better adding a further timer in the tanks cupboard to turn that on/off at preset times fed by the same E7 circuit?
My aged mother in law has just had her meters changed to smart meters.
The EDMI ES-12B electric meter - can someone confirm if this does Economy 7 ?
She has a Horstmann Electronic 7 Maxistore E7 controller in the kitchen and no user manual
and has just been pressing the boost button when needed for hot water with the heating coming on at about 10:30PM -6:30AM.
(Searches for the manual show a newer model, this is an older model)
After the meter change the controller seems to have reset it's times, so I reset the summer on/off boost period to the above times (the on & off were both set to 1am).
Heating worked OK but she had no hot water in the morning.
She seems sure that she would see a light after 7am to say the water was on. (although could be oldfuddled).
Looking at the wiring into it, it only has 1 wired output (red&black wires) which to me looks as if both storage heating and immersion are on the same circuit.
How will this be wired? with 4 heaters I can see this pulling a lot more current than the little relay inside the controller can handle?
She has a fuse centre next to her fuse box that seems to have individual fuses for each boiler so I assume they are individually wired, will there be a contactor inside there controlled by the timer?
ALso, if the immersion tank is on the same circuit this would suggest that she is heating it all through the night when it only needs a short time to heat up so would it be better adding a further timer in the tanks cupboard to turn that on/off at preset times fed by the same E7 circuit?