peak output. This is represented in THERMOS by the 'tank factor', which is a multiple of the base heat output.
</p>

<p>
For example, say a building uses 20MWh/yr of heat. Changing the units for this to kW you get about 2.3 kW as the minimum possible peak value (if it were uniformly spread out).
</p>

<p>
With tank factor set to 1, the peak would be 2.3kW; with tank factor set to 2, it would be 4.6 kW, and so on.
</p>

<p>
A realistic value for a domestic building is probably in the region of 6.
</p></dd>
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