Boiler without thermostat

[bandejapaisa]

I have a new boiler, but I don't have a thermostat yet. I have a Vaillant EcoTech 837.

The boiler isn't running all the time, and my house is a nice temperature all day a night. I set the boiler central heating temperature to 50 and the water to 60. So if I haven't got a thermostat, is the central heating just circulating through the boiler and the boiler just keeping the water at that temp?

I guess the thermostat is for the air temperature and to have more control over this process.

On another note, the boiler is only a week old and already I've topped up the pressure twice. Last night it shut down because the pressure dropped too low. Is this related to the 50 degree temperature I set the water to? The engineer left it at 60 or 65, can't remember which.

Thanks

 

[Armo74]

Yes you should have a room stat to comply with current regs.
Go round and check all vents are closed on rads otherwise you may have a leak.

 

[TCCHeating]

Have you even got a timer? I'm hoping your installer is planning on coming back to fit you something? And fix the leak as well

Here's what you need,

http://www.directheatingsupplies.co...able-Room-Thermostat-VRT-350f-0020124482.aspx

Expensive but its plug and play. No need for any wiring.

 

[bandejapaisa]

Thanks for the link. He didn't fit the thermostat because I have a Hive active heating from British Gas on order. Only British Gas can fit those.

So if the pressure is going down, then I definitely have a leak somewhere?

If I had a radiator vent open, wouldn't water be coming out of it?