Cost Effective Electric Heating

Richie-from-the-Boro

Another complete misunderstanding of domestic NSH. The 17 quoted hours is a TOU heating and distribution cycle, FACT 24-7=17, or exactly the mathematical equivalent of a 1.4kW heater permanently supply of 'cheap electrical background heat' 24 not 17 hours per day, see below :

brick is a brick :

- each brick will hold 1.48kWh of cheap heat and depending on insulation will release it over the next 17 hours
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- each of the (up to 4) vertical 850W elements sits in the gap between 4 of these bricks

- each brick is 230x190x50 - if you divide the total amount of heat you want by 1.48 you know how much stored heat you need
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- a NSH tin comes in 4 varieties up to a 16 bricker 16 x 1.48kW = 23.8kWh of stored heat

- equivalent to a 1.4kW heater permanently supply of 'cheap electrical background heat' 24 not 17 hours per day

If its out of heat by say 5 or 8 or 10pm then its because you have under-specified the tin storage needs and need more bricks or you have the damper open in which case it is not good-radiative but bad-convective.

Placement of a NSH should where aesthetically possible should be direct-line to your self, the benefit of radiated direct heat is much the same as [felt] IR heat. Keeping the living area at say 15°C is from my point of view medically unsafe and socially unreasonable, (2018-19 GOV recommends 18-19°C) it's your house, you decide.

Best of luck!

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