Does anyone have a rough idea of how many kw a large storage heater is set on number 5.
- posted
17 years ago
Economy 7
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- posted
17 years ago
How long is a piece of string?
Have a look at the specification of it, which will be detailed somewhere on the unit, usually near the mains input.
Alan.
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17 years ago
From a handy Dimplex catalogue, an ordinary slimline storage heater with a 3.4kW rating takes in max. 23.8kWh charge acceptance on 7 hour continuous.
Owain
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17 years ago
At the risk of being accused of hi-jacking this thread, is Economy 7 (or a lower tarif nighttime rate still available for new customers?
Malcolm
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- posted
17 years ago
The biggest normal domestic storage heater is 3.4 kW (giving 24 kWh 'charge' in 7 hours).
The 'setting' (input charge control) is just an on-off thermostat, and doesn't affect the power consumption, except in the sense that the latter will be either zero or 3.4 kW.
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17 years ago
yup
NT
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17 years ago
Please can you clarify as I've never owned, let alone inspected, one of these at close quarters.
Are you saying storage heaters stay on at full power for the 7 hour daily Economy 7switch on. Then the stored heat is released at a rate effectively determined by the dial thermostat?
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- posted
17 years ago
You have two controls. One the input charge controls how hot the bricks get during the E7 period, the other controls a flap that lets the heat out.
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17 years ago
Storage heaters normaly have two controls "input" and "output". Both are thermostatic devices.
The input one controls how hot the bricks are made in the off peak period. The hotter you make the bricks the more heat is stored and the longer it takes to heat them up.
The output control is a nominal room thermostat that opens/closes a flap that controls how much air convects through the bricks and thus how much heat is released into the room.
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17 years ago
Or until they are fully charged and the thermostat cuts the input off. Unless you live in a very cold house they don't discharge fully each day so they don't stay on for the full 7 hours each night.
The discharge is (partially) controlled by the output dial, which moves a flap connected to a bimetalic strip. However, most of the heat radiates through the case and the flap only makes a small difference to the rate of discharge
hth
tim
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