Dimplex Quantum Storage Heaters

mitbrille

Hi everyone,

We moved to a flat with Dimplex storage heaters in June; Two (2) QM150 G series
The flat: ground floor flat, 42 square meters, EPC B 81.

In October we switched them on and it got hot as hell. Since then we experimented with different settings and they are still a mystery for us.

Default settings: They charge up during the night. - RESULTS: Too hot, huge bills
Default settings with room temperature set low (18 Celsius): - RESULTS: No or very small heat stored.
Default settings with room temperature set high (24 Celsius): - RESULTS: Very hot in the flat again, high bills
Reduced charging time period: They are set to charge between 4.45 a.m. - 7.15 a.m. - RESULTS: One is charged perfectly, the other has no heat stored whatsoever.

Additionally, we noticed that they have ample heat left for the evenings when we are at home. So instead of storing the heat they run out of it. No, we do not run their fan during daytime. No, the comfort is not on. They just lose the stored heat for some unknown reason.

Any advice from someone having these storage heaters would be highly appreciated.

Seriously, I just can't figure out their optimal setup for an enjoyable warm winter indoor with some remaining pennies in our pockets.

EnergyRookie

mitbrille wrote: »

Hi everyone,

We moved to a flat with Dimplex storage heaters in June; Two (2) QM150 G series
The flat: ground floor flat, 42 square meters, EPC B 81.

In October we switched them on and it got hot as hell. Since then we experimented with different settings and they are still a mystery for us.

Default settings: They charge up during the night. - RESULTS: Too hot, huge bills
Default settings with room temperature set low (18 Celsius): - RESULTS: No or very small heat stored.
Default settings with room temperature set high (24 Celsius): - RESULTS: Very hot in the flat again, high bills
Reduced charging time period: They are set to charge between 4.45 a.m. - 7.15 a.m. - RESULTS: One is charged perfectly, the other has no heat stored whatsoever.

Additionally, we noticed that they have ample heat left for the evenings when we are at home. So instead of storing the heat they run out of it. No, we do not run their fan during daytime. No, the comfort is not on. They just lose the stored heat for some unknown reason.

Any advice from someone having these storage heaters would be highly appreciated.

Seriously, I just can't figure out their optimal setup for an enjoyable warm winter indoor with some remaining pennies in our pockets.

If one of the heaters is not storing heat, despite a limited heating period of just 2.5 hours, then it sounds like it is broken.

Get an expert in to take a look at it. Or you could try reverting that one back to the 7 hours charging period.

You should be controlling the charging by the load/input control, not by the recharge time.

The fact you are only currently effectively using only 1 of the heaters, when 2 were deemed necessary to heat the property, means that the one heater is being expected to provide all the heat, so no wonder it is struggling and running out of heat before the day is out.

Gerry1

Remember that if you have a radio teleswitch the start and finish times can vary by +/- 15 minutes, so don't let the heaters use full price electricity during these times.

oldcyclist

If you have the G series heaters then they do have a hidden timer option for charging but it's much safer to have a switched power supply from the meter which ensures that ONLY cheap rate power is used . If the internal clock is used then it's absolutely essential that the heater clock is set correctly.
Additionally it sounds as if one of units has an internal fault-- one of my G units started misbehaving so I contacted Dimplex (a tedious task!) and eventually they sent out a service-person who checked it over then updated the firmware (Connected a PC to the circuit board) Since then it has performed as expected.
I also have a few of the F series units (not so predictable) and have been trying to find if they can be upgraded to the later spec. (The basic heater is the same- just a different circuit board and firmware.-- has anyone found this info?

sburr91

Hi all, I have a question about the Dimplex Quantum storage heaters, I had 2 heaters recently installed, a large on in the living room and a smaller one in the hallway. Each heater has two plugs to them, when they got Installed the electrician said to have both plugs on for each heater and it was all preset and ready to go, the living room one seemed fine until the next day when it started saying error 32, I believe this means component overheating. I turned it off and gave it a few days to cool and tried again, now it doesn't seem to be giving off heat so I can only assume it isnt storing heat at night, I tried the hallway one and that's not storing heat either although no error on that one, our old heaters only needed one of the plugs on so I even tried that but nothing is working on either, am I doing something wrong here or do I need to call the electrician out again? 

tim_p

You shouldn’t be getting any error on a newly installed heater, get the installer back and tell them to sort it!  You shouldn’t have to pay for this to be put right. 

macman

Are you sure you mean 'plugs'? An NSH needs to be hardwired via an FCU to a dedicated radial circuit for the E7 side, not plugged into the ring main!
Only the boost side (peak rate) can be wired to the ring main.
Either you are mis-describing it, or your installer is utterly incompetent.

danrv

oldcyclist said:

If you have the G series heaters then they do have a hidden timer option for charging but it's much safer to have a switched power supply from the meter which ensures that ONLY cheap rate power is used . If the internal clock is used then it's absolutely essential that the heater clock is set correctly.

This is useful. I’m considering installing G series Quantum heaters but house isn’t suitably wired.
I have a high current timed E10 radial to a central warm air heater.
Now I need to get E7 wiring to individual rooms (downstairs at least). 
I thought about running a single supply to each Quantum and using the hidden charging
timer option. That could get a bit out of hand though, insuring off peak charging is exactly
in sync with the rate switchover.
Now need to figure out if I can get away with cable trunking.

matelodave

danrv said:

oldcyclist said:

If you have the G series heaters then they do have a hidden timer option for charging but it's much safer to have a switched power supply from the meter which ensures that ONLY cheap rate power is used . If the internal clock is used then it's absolutely essential that the heater clock is set correctly.

This is useful. I’m considering installing G series Quantum heaters but house isn’t suitably wired.
I have a high current timed E10 radial to a central warm air heater.
Now I need to get E7 wiring to individual rooms (downstairs at least). 
I thought about running a single supply to each Quantum and using the hidden charging
timer option. That could get a bit out of hand though, insuring off peak charging is exactly
in sync with the rate switchover.
Now need to figure out if I can get away with cable trunking.

One assumes that the radial is fed via a fuse to the warm air heater. To do it properly you need to fit an E7 distribution board with a fused radial to each heater position and not just daisy chain each heater from the next.
Bodging is not an option (unless you want a fire)

danrv

matelodave said:

One assumes that the radial is fed via a fuse to the warm air heater. To do it properly you need to fit an E7 distribution board with a fused radial to each heater position and not just daisy chain each heater from the next.
Bodging is not an option (unless you want a fire)

The warm air heater bypasses the consumer unit and has it’s own fuse. I suppose this radial will be of no use with the E7 system.
The CU does have four spare fuseways but a seperate board fed from the timer would 
be best.
While the timer and board fitting isn’t too big a job for the electrician, routing cable to possibly six storage heaters could be.