Alde Heating

[SirRogerFFS]

Hi To All Techies.
Just been away in ourNew Sterling Elite for a two week break first two weeker from new
I only have one problem ,we were finding despite the contol (heating ) being down as low as we could get it the heating still came on , but only on low ,too hot in bed tho.
Any ideas would be appreciated ..
Sir Roger

 

[JTQ]

If its "on" , just hot water, then it will be radiating some amount of heat even though its not on space heating [ciculating pump armed].
The lowest level I can set my space heating is 5 deg. [Compact 3010 2008 vintage.]
If the unit is installed under the bed even being on would be a problem in summer I should think; will be nice in winter though. Ours is in the base of the wardrobe which is not even in the bedroom.
We dont have it "on" during the night in summer, we put it off in the afternoon so have still water for washing up after supper and washing before retiring. We put it on in the morning for hot water/showering etc; it can of course heat up its 8 odd litre quickly, with upto 9 kw gas plus electric or still acceptably fast on just 2kw electric.

 

[SirRogerFFS]

JTQ Many thanks for your reply.
We have the Sargent box under the front bed so can I take it that with the space heater on and the water we will get heat at the first rad under the fixed bed .
I m still not sure of the switch arrangement on the sargant box as we dont get hot water at the taps without the space heater being switched on .
One totally confused Sir Roger

 

[Clive-Cardiff]

We get the same trouble with our van. In our case the cause appears to be a convection flow through the pipework causing the towel rail in the washroom and the rad under my bed to heat up when the water heater is on.
This happens without the pump running and was a pest when we were in Portugal in really hot weather.

 

[JTQ]

Whilst up till now I had not even thought about the reason why my Alde boiler is 150 ish mm above the floor on a plinth, its to avoid thermosyphoning. So its higher than the circuit pipework, thus not prone to convection cirulation. So no none of my radiators gets warm unless the DC circulating pump is switched to run by the "room" thermostat. Van is a Hymer.

Basic operating modes:
With the unit "ON" it always heats the domestic water. It also heats that amount of the inhibited water circuit at that time in the Adle's unit. Throughout being on the the temperature of the inhibited water is automatically controlled by a thermostat within the unit to a factory set temperature, swicthing gas or electrical heating as is selected. As the domestic water jackets the cylinder holding the inhibited water, this if its filled also heats up.
With the unit "ON" and the little circulating logo is activated then the cicutating pump is "armed" to respond to the room thermostat. If the room thermostat [which I believe but dont know resides in the control panel] senses the room is cold it switches on the inhibited water circulating pump, and switches it off once the room has warmed. As the circulating pump sends the hot "slug" of inhibited water that was in the unit on its way around the circuit then the colder water entering the unit switches the units thermostat and fires the gas and or electrical heating to try and return the inhibited water back up to the units factory set temperature. I believe this factory set temperature is 70 deg normally but I think its actually a little smarter than that and changes to 80 deg if the heat demand is high and it feels it needs to really pump some heat into the van.

If your new to Adle I feel you ought to make any user aware that the domestic hot water temperature can be scaldingly hot, far hotter than now permitted in a domestic dwelling. I feel in this age its close to criminal that the circuit is not fitted with temperature limiting mixer valves [Heatguard, etc] as legislation requires in ships and I believe now domestic/commercial properties.
Be warned. JTQ

 

[chrisn7]

I have an alde unit in an older van, but this has a knob on the side to control the temperature of the water. Essentially you turn it down in the summer and up in the winter when there is demand from the heating systen as well. This control is set next to the re-set button on the boiler itself. Does this control not exist on the latest Alde?

 

[SirRogerFFS]

chrisn7
Sadly the new Aldi is nothing like it and there is no heat control you get what it gives .
Annoying in somecases but there you go it contollable with the mixer tap when know how hot it will be
Sir Roger

 

[chrisn7]

Thanks I didn't know that-it seems an inapproriate omission in these days of trying to save energy...