Heating - lost my thermostat
Discussion
t plumbers sometimes don't fit one.Assuming you have heating and hot water cylinder running off the same circuit, is the bypass balancing valve set correctly?
This is the gate valve between the central heating circuit and cylinder heating circuit on the return (google it)
This is assuming you have a hot water tank and system boiler (not combi).
If the valve is fully open, hot water from the boiler will circulate around the water cylinder easily, but won't get 'pushed' around the radiators.
Closing the valve a little will push less water through the water cylinder, and more through the radiators.
There's obviously a 'happy' point where you're getting good flow through the rads (and hence hot rads), and good flow through the water cylinder, and hence hot water.
Closing it completely will stop the hot water heating up, opening it completely will stop the rads working fully.
After all that, I bet you've got a Combi boiler and this is all rubbish....
This is the gate valve between the central heating circuit and cylinder heating circuit on the return (google it)
This is assuming you have a hot water tank and system boiler (not combi).
If the valve is fully open, hot water from the boiler will circulate around the water cylinder easily, but won't get 'pushed' around the radiators.
Closing the valve a little will push less water through the water cylinder, and more through the radiators.
There's obviously a 'happy' point where you're getting good flow through the rads (and hence hot rads), and good flow through the water cylinder, and hence hot water.
Closing it completely will stop the hot water heating up, opening it completely will stop the rads working fully.
After all that, I bet you've got a Combi boiler and this is all rubbish....
To pick up with a similar question, is a room thermostat not essential?
The situation is the neighbours ate going away, and I want to keep the system on a frost-prevention setting. Couldn't find a room thermostat anywhere. It's a combi boiler (can't remember the brand) in a cupboard which has integrated:
Is it wrong or bad practice? All the other flats have a thermostat installed with the initial build, and I've run out of places to look.
The situation is the neighbours ate going away, and I want to keep the system on a frost-prevention setting. Couldn't find a room thermostat anywhere. It's a combi boiler (can't remember the brand) in a cupboard which has integrated:
- Timer
- Uncalibrated dials, which I presume are to adjust water temps for HW and CH
- Pressure gauge and CH water temp gauge
Is it wrong or bad practice? All the other flats have a thermostat installed with the initial build, and I've run out of places to look.
For those without room stats. It's easy enough to put a wireless room stat in, which would allow it to be positioned nearly anywhere and without the need for running a wire from the boiler to the stat. A small box wires into your boiler as you would a wired stat, but the box is RF and communicates to the wireless room stat.
This might be an option for some who fancy coming into the modern day world
My wireless Honeywell room stat cost ~£50.
This might be an option for some who fancy coming into the modern day world
My wireless Honeywell room stat cost ~£50.
Ferg said:
A boiler without a Room Thermostat is simply WRONG. It is the sign of a CHEAP job by a heating engineer who simply wasn't interested in doing a proper job.
Hi Ferg. I bow to your wisdom 
Surely though, with all singing and dancing modern boilers these days, plus TRV's, why would you need a room stat?
btw, I'm a pipe fitter and commercial plumber who deals primarily with steam. If you want to fit out a dry cleaners, I'm your man
Edited by gtr-gaz on Wednesday 2nd December 21:03
Thanks for the answers - I was sure it was wrong, and all the other flats have one. Landlord (and friend) has replied that he thinks there is one but can't remember where, so I guess I'll have to work around every wall hunting for it. If not, add it to the list of jobs. Siting is a doddle as it can go on the side of the boiler cabinet, which is good for both visibility and giving an accurate temperature.
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