Old C/H boiler with no room thermostat

[Bungaroosh]

I've got an old Potterton Kingfisher gas boiler that is powered by a mains lead running to a plug in a wall socket. It's either on or off - apparently no thermostatic control so we switch it on when we're cold or want hot water and turn it off when we're warm enough.
I've got hold of a basic 4-terminal room thermostat so I can leave the heating on low for when we go away on hols.
The diagram that came with the thermostat shows which is live, neutral (2 of those) and earth but I've no idea how to actually wire this up in series to the mains cable powering the boiler.
Any ideas?

 

[Click-Sure]

Which model of Kingfisher is it (there are a few in the floorstanding range)
Cant quite remember if that is a combi or not, but memory tells me it isn't, and its hardly my favourite Potterton by miles.

Heating controls are not just timers. You also need Zone valve(s) thermostat(s) and a junction box to connect the whole lot into.

Leaving hot water belting around your rads will just mean your house gets very hot. Leaving it running around the coil in your hot water cylinder meands the water you run a bath with gets scalding hot, and that is not a very good thing!

 

[2face]

as above the thermostat controls a zone valve, might be better to buy a controls pack and get some one to fit that for you.

alternatively place a timer on the plug and turn down the boiler stat. this would give you heating for a couple of hrs during the time you are away .

 

[ban-all-sheds]

Heating controls are not just timers. You also need Zone valve(s) thermostat(s) and a junction box to connect the whole lot into.

So how come I've got a CH system with no zone valves and a single thermostat/timer and I don't have hot water continually belting around my radiators turning the house into a sauna?

 

[2face]

hot wateer is on gravity and timer controls the pump to bring on the heating ? its very hard to diagnos stuff without seeing it .

very frustrating i know but the more info the better.

 

[ban-all-sheds]

hot wateer is on gravity

No - it's a combi.

 

[Click-Sure]

[quote="ban-all-sheds";p="1092543]
So how come I've got a CH system with no zone valves and a single thermostat/timer and I don't have hot water continually belting around my radiators turning the house into a sauna?[/quote]

I didn't think this boiler was a combi, but there is so many around, you lose track!

In that case its a combi we're talking about, and the best way to provide control for heating is a programmable room thermostat, and generally the RF (wireless) type is the one to go for.
However, all central heating controls wiring is notifiable under part P of the building regs in England and Wales so a plumber or heating electrician (many plumber have contacts with these people) will be able to help you.

 

[ban-all-sheds]

I didn't think this boiler was a combi, but there is so many around, you lose track!

Which boiler?

Mine, or the OP's?

 

[Click-Sure]

Judging from the posts, both of you have a combi.

And its me that loses track of the many many boilers out there.

 

[ban-all-sheds]

Well I know mine is.

Guess we'll have to wait for Bungaroosh to return and tell us if his is...

 

[gas4you]

The Kingfisher is not a combi, just a standard floor mounted heat only boiler so any room stat, wired or wireless rated for 240VAC will be ok