I fitted a Dimplex Quantum heater!

tracytcb

paulhgc said:

Why are you having to use peak electric ? if you have stored it overnight and have set your timer it will use the heat stored and if you require more just click advance and it will again use the heat that has been  stored 

It uses peak time electricity to run the fan in Heater On mode during the day. Yes it uses the heat stored overnight, but it must be using electricity to run the fan to output the heat during the day.

tracytcb

danrv said:
The Quantum QM100 has a smaller capacity than the Creda. Maybe it’s undersized for the room.

Not sure why there would be heat from the top grill if the ‘Heater On’ mode is off.
Maybe ventilation for electronics rather than stored heat,
Fan is low wattage.

Not undersized for the room. The heat coming out from the top grille/vent is from the heat in the bricks as it charges overnight. It had a full nights charge and if I put my hand over the top vent I could feel heat coming out, but it goes straight into the wall. Vent should be at the front to utilise this wasted heat.

The point about the fan is that it is running during the day, therefore using peak time electricity when I otherwise wouldn't have anything extra running. So therefore I will be spending more money on peak time electricity that I would without that running. Also you can hear the fan and then the heater cooling down noise. So I now have noise, where previously I had silence. I find it annoying, even if the tv does drown it out. 

My old standard storage heater only had a off-peak feed. It would heat up during the night and then you had a output setting which adjusted a flap to change the amount of heat emitted. It did not need electricity to output the heat.

I woke up this morning with the Quantum cold to the touch. I don't think it stored any heat overnight. With my old heater it would output heat as it charged so it would be lovely and warm on a morning. This morning I was freezing. I gather the Quantum adjusts what it thinks it should take in at night time, so you save on your off-peak electricity. But you pay for it during the day having the fan running or having to put the boost on because it hasn't stored enough (or any) heat overnight. 

Seriously considering reinstalling my old Creda TSR18MW. Never had a problem with it and was always warm enough with using ANY peak time electricity and with no fan noise and cooling down clicking. 

Jonnyk14

Just to chip in - we recently moved to a house full of Quantums, and they’re chewing through peak-time electricity like there’s no tomorrow. Presumably this is just the cost of the fans running. The running costs on these are scarily expensive compared to a normal NSH like we had in a previous property. Not to mention the fan noise waking you up in the morning...

Jonnyk14

After a bit more research we have a bigger problem with our electrickery - so ignore my previous post.
quantum heaters should only use 11.5w when running the fan and user interface (says the manual). So I f you use 5 heaters for 7.5 hours a day, over 30 days that’s roughly 13.5 units.

danrv

tracytcb said:

The heat coming out from the top grille/vent is from the heat in the bricks as it charges overnight.  

That goes against their claim of superior heat retention and insulation.
The old ones leak heat. These new ones are supposed to keep it in so what are the vents for?

tracytcb

danrv said:

tracytcb said:

The heat coming out from the top grille/vent is from the heat in the bricks as it charges overnight.  

That goes against their claim of superior heat retention and insulation.
The old ones leak heat. These new ones are supposed to keep it in so what are the vents for?

No idea. But I was hoping it would work like my old heater, just with an optional boost function. But no. No heat out the front without having to have the fan running. I can't see how this can save you money. It may use less during the night, but to get any heat during the day it must be in Heater On mode. So you spend more in peak hours. 

My old heater was working perfectly. So think I will refurbish it and reinstall it. This Quantum stuff is rubbish.

I don't know who designs these things, but I doubt they have ever lived with storage heaters in their lives. 

tracytcb

Jonnyk14 said:

After a bit more research we have a bigger problem with our electrickery - so ignore my previous post.
quantum heaters should only use 11.5w when running the fan and user interface (says the manual). So I f you use 5 heaters for 7.5 hours a day, over 30 days that’s roughly 13.5 units.

Thankfully I have only one. But I object to having to use ANY extra electricity during peak hours. There is no way this is going to be cheaper than my old Creda model which only used off-peak and need no peak time feed.

danrv

tracytcb said:

Thankfully I have only one. But I object to having to use ANY extra electricity during peak hours. There is no way this is going to be cheaper than my old Creda model which only used off-peak and need no peak time feed.

The old Creda was acting almost like a convector heater. Leaking heat which sounds like you were used to.
The vents on the Quantum are doing the same (strangely).
Not sure about the random charging pattern. Assuming it’s dual supply.
I think I’d prefer a manual charge control where it charges the same amount every time E7 off peak kicks in.

My Unidare central warm air heater delivers heat by fan. Running costs of which are a complete non issue. 
The benefit of this is much more control over heating. Set the room thermostat and when the fan runs, it’s warm within seconds. Room gets up to temp, it cuts and room cools down quite quickly. 
That’s how the Quantum should work. 
I don’t have one yet, but they can’t be that bad. Just a case of getting used to it and setting it up correctly to charge properly at night.

tracytcb

danrv said:

tracytcb said:

Thankfully I have only one. But I object to having to use ANY extra electricity during peak hours. There is no way this is going to be cheaper than my old Creda model which only used off-peak and need no peak time feed.

The old Creda was acting almost like a convector heater. Leaking heat which sounds like you were used to.
The vents on the Quantum are doing the same (strangely).
Not sure about the random charging pattern. Assuming it’s dual supply.
I think I’d prefer a manual charge control where it charges the same amount every time E7 off peak kicks in.

My Unidare central warm air heater delivers heat by fan. Running costs of which are a complete non issue. 
The benefit of this is much more control over heating. Set the room thermostat and when the fan runs, it’s warm within seconds. Room gets up to temp, it cuts and room cools down quite quickly. 
That’s how the Quantum should work. 
I don’t have one yet, but they can’t be that bad. Just a case of getting used to it and setting it up correctly to charge properly at night.

No the Creda wasn't leaking heat. You turn a dial for the output which operates a flap. The more the flap opens, the more heat comes out. So the heat will come out to whatever I set it to night or day. No fancy electronic readouts or temperature control. It was a single off-peak feed. No peak switch needed. It may use a bit more for charging during the night, but uses absolutely no peak time electricity. Can't beat simplicity.

Your Unidare sound similar to the Quantum. Constant fan noise when it is on during the day. No noise at all from my old heater. 

The ideal would be my old heater with an optional boost to use if necessary. Don't need this fancy working out how much to charge up during the night. Just get a full charge and that's usually enough for all day. Seems odd to trade saving off peak electricity for using peak time electricity. Makes no sense.

danrv

tracytcb said:
Can't beat simplicity.

Your Unidare sound similar to the Quantum. Constant fan noise when it is on during the day. No noise at all from my old heater. 

No. Beginning to think that the simpler TSR heaters would be better for my heating.
Old stock still available, and a lot cheaper.
I need multiple units and ideally some sort of overall control, hence considering Quantums as they’re WiFi compatible.
Creda TSR would be manual only but if just one supply and a simple input and output, they would be easier to install and operate.
All the modern ones now are fan assisted it seems. 
The Unidare is in a cupboard so fan noise can only be heard through the grills in the wall.