PSA: If you're moving out, please leave the manual to the ridiculous complicated heating system

Mark R

Diamond Member
Oct 9, 1999
8,513
16
81
Cheers, previous occupants.

The weather will start getting cold soon, and I'd sort of managed to work out how the complicated multi-zone, multi-time-slot electrical storage heating network worked, but with one limitation. I had no idea which zone referred to which room, or indeed how some of the heaters were controlled.

The only control on 3 of them is a single unmarked momentary push button. That's really helpful.

So I thought, how about I take the heaters apart to see what's inside. So I start with the one in the hall way. Front panel comes off easily enough. Then there's another panel inside. That comes off easily too. Then a layer of insulation. Then some bricks. The bricks come out - dunno, what they're made of - but they're about 10 lb each. Then there's a heating element. That comes out. Then some more bricks. They come out. Then there's the back panel. Doh. I've started on one with pure passive controls.

OK, let's try another one. Ah. This looks promising. Pic. But, what do all those switches do. Fortunately, it was easy enough to work out that the first 2 switches represent the zone number in binary - eventually confirmed by tracking down the installation manual, deeply concealed on the manufacturer's web site.

Cliffs
1. Moved home. No manual for electronically controlled heating
2. Try to reverse engineer heating system.
3. Strip 'unintelligent' heater - fail to find electronic brain
4. Strip rest of heaters. Examine brains.
5. ?
6. Profit
 

Mark R

Diamond Member
Oct 9, 1999
8,513
16
81
I've now finished dissasembling heaters and have written a little instruction manual, in case I forget how they work.

However, I came across one heater that didn't seem to be working properly during testing. Specifically, the thermostatic control, and boost functions didn't work. So I took it apart again to investigate - sure enough, the unrestricted electricity supply to the heater wasn't actually connected inside. The power supply wires were just held in a holder and not actually connected to the control board. The restricted supply was correctly connected, so it would have produced some heat - just not controllably.

Anyway, connected the wires and it's now working!
 

BehindEnemyLines

Senior member
Jul 24, 2000
979
0
76
I would seriously consider a licensed HVAC or electrician go over those heating system. I don't think it's worth the risk of having incorrect or dangerous wirings. Just my $0.02.