Demand Delay for short and rapid dips in temperature
Can a programmable delay be added to the Neostat response timing to counter the effects of a rapid drop in temperature firing the boiler ? If the room temperature is above the set temperature and it drops rapidly due to an in rush of cold air as a result of a door or window being opened then the boiler will fire up. If the differential on the Neostat is set to 0.5 degrees to minimise overshoot and undershoot on an under floor heating system with a large thermal mass then this effect is particularly noticeable. In fact, dips in temperature that resulted in red spikes of heating demand were seen in the enhanced history, lasting anywhere between 30 seconds to a few minutes. So, if a delay could be set to say between 2 to 10 minutes then unnecessary pump, actuator and boiler operation would be avoided.. To enhance the feature, an alarm could be sent to the smart phone, after the delay time has been reached, to indicate the heating is on with a door or window open.
Comments: 2
-
13 Mar, '22
Grodon GrahamCompletly agree with this would be very useful, as we have underfloor heating and a large slider door so when opend on a windy day the air temp drops quite quickly but when closed the thermal mass brings the head back without the need to fire up boiler, but as the app sees a drop in temp it kicks in then often overshoots
-
25 Mar, '23
Kyle+1, our house is hypersensitive to short term drops when front door is open, and firing underfloor to try and build back shirt term drops is wildly inefficient. There should be sufficient residual heat in the house (floor and walls) to recover from a rapid drop in internal air temperature before it should need to call for heat. An option to set a 15 or 30 minute delay before responding to rapid drops would probably cut the number of calls for heat in my house by half at least.