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Guidelines

What temperature should hot water cylinder thermostat be set at?

What temperature should hot water cylinder thermostat be set at?

60-65ºC
A domestic hot water cylinder thermostat should be set at 60-65ºC. This is high enough to kill off harmful bacteria such as Legionella. If you set the thermostat much higher than this the water that comes out of the taps will be too hot and there’ll be a risk of scalding.

How to test a thermostat in a boiler?

If you can remove the stat from your tank, after isolating the electrics then wire out the control stat with a small piece of wire, and in your kitchen boil a kettle and pour the water into a pyrex bowl and immerse the stat in the boiling water, this should be hot enough to activate the hi-limit stat.

What should hot water cylinder thermostat be set to?

For example: If the boiler is set to 55 degrees the hot water cylinder will never exceed that no matter how long the hot water is left on for, or what the cylinder thermostat is set to. The thermostat is not the problem, show us the other controls that you have, valves boiler etc so we can see your set up

Which is the best WiFi thermostat for a boiler?

When it comes to WiFi thermostat models, “Honeywell RTH9585WF” is the #1 choice anyone should consider. This model from Honeywell is an upgraded version its best seller – “Honeywell RTH9580WF” – which once ruled as the #1 WiFi thermostat for boilers or other central heating systems.

Which is the best Nest Thermostat for a boiler?

Nest 3rd Gen is compatible upto 2H/2C – Two stages of heating and Two stages of cooling for boilers. As a boiler thermostat, Nest 3rd Gen model supports “dual transformer configuration” – where there is more than one R wire. Nest E is compatible only upto 2H/1C – Two stages if heating and One stage if cooling as a boiler thermostat.

If you can remove the stat from your tank, after isolating the electrics then wire out the control stat with a small piece of wire, and in your kitchen boil a kettle and pour the water into a pyrex bowl and immerse the stat in the boiling water, this should be hot enough to activate the hi-limit stat.

For example: If the boiler is set to 55 degrees the hot water cylinder will never exceed that no matter how long the hot water is left on for, or what the cylinder thermostat is set to. The thermostat is not the problem, show us the other controls that you have, valves boiler etc so we can see your set up

When it comes to WiFi thermostat models, “Honeywell RTH9585WF” is the #1 choice anyone should consider. This model from Honeywell is an upgraded version its best seller – “Honeywell RTH9580WF” – which once ruled as the #1 WiFi thermostat for boilers or other central heating systems.

Nest 3rd Gen is compatible upto 2H/2C – Two stages of heating and Two stages of cooling for boilers. As a boiler thermostat, Nest 3rd Gen model supports “dual transformer configuration” – where there is more than one R wire. Nest E is compatible only upto 2H/1C – Two stages if heating and One stage if cooling as a boiler thermostat.