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Nigel Evans Posted on Nov 22, 2013
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Setting start temperature on central heating thermostat

Ive had a new combi boiler installed with wireless room thermostat. I have never used a thermostat before. I have a digital Salus RT300RF elec thermostat. I understand concept of setting a "switch off" temperature - eg 21 degrees but cant find a setting for heating to "switch on" ?? As it is colder I want heating to come on if temp drops below 17 degrees when I want it to. At moment actual temperature reading on thermostat is around 13 degrees when heating is off. When heating is switched on it only reaches 17 degrees after around 4 hours which is too cold. The temperature never reaches 21 degrees which defeats the object of a thermostat. Am I missing something or do I need a different type of thermostat. Apologies for my ignorance! Thanks for your advice

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John

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  • Posted on Nov 23, 2013
 John
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It sounds like your heating system has to little capacity to heat the home properly. 21 degrees is a reasonable temperature to expect but if the unit is running all the time and can't reach 21 degrees the heater is too small.
As far as setting the thermostat here is a link to the instructions.
http://www.salus-controls.pl/data/product/attach/rt300rf_-_eng.pdf

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Generally you want to think about when you want your heating to come one and off by using the timer and then the thermostat is just used to ensure that you don't waste energy by exceeding the maximum comfortable temperature.

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