Room Heating Capacity; Heating In The Transitional Period / Unfavourable Weather Conditions - Spartherm XS 500 Installation And Operating Instructions Manual

Linear fireplace cassettes

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Installation and operating instructions manual (36 pages)

Table Of Contents

Table of Contents

Room heating capacity was previously given in accordance with the DIN

18893 standard (last issued August 1987) and is no longer useful for modern

houses built after 1990. However, the old information for room heating

capacity can still be of interest as a comparative value or for use with older

building structures that do not yet correspond to the thermal insulation

standards from 1977.

The nominal heating capacity of the individual fireplace cassettes when

operated as a temporary heating source (meaning with operative intervals of

less than 8 hours) provides the following room heating capacities:

Fireplace

cassette

NHC in KW

Heating

condition

favourable

less favourable

unfavourable

* Significantly larger rooms can be heated with modern thermal insulation

A more precise description for "favourable", "less favourable" and "unfavoura-

ble" can be found in the DIN 18893 standard. In simple terms, "favourable"

represents a situation in which the room only has one exterior wall and is

otherwise surrounded by heated interior rooms, "unfavourable" means, in

contrast, rooms with two exterior walls and adjacent unheated rooms.

The values given above refer to building structures that do not yet correspond

to the requirements of the thermal insulation standards from 1977 and also

represent, therefore, a simplified process that is only valid up to a maximum

room size of 200 m³. The DIN 18893 standard already recommends using

DIN 4701 for these calculations from a room size of 200 m³. It is now

preferable to make an estimate according to TROL or, in particular, to make a

calculation according to DIN 12831.

3.7

Heating in the transitional period / unfavoura-

In the transitional period, meaning when the outside temperature is still high

(above approx. 15°C) or during unfavourable weather conditions (katabatic

winds etc.), it is possible to experience disruption to the chimney flue

performance during sudden rises in temperature so that the hot gasses are

3.6