Rob Foster
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Cyprus its on its way to our workshop
for evaluation. Rob Foster aka centralheatking
Discuss Lidl has entered Plumbing and Heating Land in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Why not? The rooms you don’t use . don’t get heated until you decide when.
Rooms that are normally unused are also normally left with the TRVs turned down manually. Hence, no saving in practice. Even if this is not the case, rooms that are unheated also increase the loss from the adjoining rooms. Hence a substantially reducing any potential savings. Also, the thermal inertial of a house means that swinging thermostats up and down over periods of a few hours makes little difference to the total losses.
You can doubtless construct an artificial scenario in which a poorly insulated house with no heating controls that hasn't been in compliance with Building Regs for about 30 years would achieve a 30% reduction in heating bills by installing these things. For most people, who already have TRVs and a basic programmer the energy reduction is going to be closer to 3% than 30%. "Heating cost" (as opposed to "energy consumption") calculations need to include the cost of the devices and installation (if not DIY) and the costs associated with the boiler short-cycling, all of which dilute any hypothetical savings arising from reduced energy consumption.
Anyway, I'll still be interested to know what Rob Foster's workshop thinks about them when they've taken a look.
That makes pure sense chuck, a very good description. Like I wrote earlier, I had them installed in my home and did notice a gas reduction.. although it was nothing like 30% at all, more like 15%
would a correctly sized boiler with very good turn down ratios that reduce such short cycling used in conjunction with programmable rad stats not give a great energy reduction?
Yes, I get the heat loss through adjoining rooms, but as heat loss in proportional to temp difference . surely just a few degrees difference between rooms wouldn’t have such a big impact on heat loss.
Reply to Lidl has entered Plumbing and Heating Land in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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