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  • BSI
    BS 7190:1989 Method for assessing thermal performance of low temperature hot water boilers using a test rig
    Edition: 1989
    $411.69
    / user per year

Description of BS 7190:1989 1989

1.1 This British Standard describes a procedure for assessing the thermal performance of low temperature hot water boilers which are intended for central heating or indirect hot water supply and which are fired with solid, liquid or gaseous fuels. The thermal efficiency is obtained by the direct method of test and is established to within a tolerance of ± 2 % points2). Flue gas losses and loss due to combustibles in ash, where applicable, are determined by measurement. Surface heat losses and other unmeasured losses are derived by difference. Procedures are also included to determine the associated characteristics of water-side resistance and gas-side resistance.

1.2 This standard applies to boilers designed to operate at flow temperatures not exceeding 100 °C, with rated heat output between 44 kW and 600 kW when used with one or more of the following fuels:

  1. smokeless solid fuels, e.g. coke or anthracite, fired by means of automatic combustion appliances;
  2. bituminous coal fired by means of mechanical stokers;
  3. gaseous fuels of the 2nd and 3rd families (see BS 4947);

and with rated heat output between 300 kW and 600 kW when used with liquid fuels of the classes specified in BS 2869.

1.3 This standard does not apply to steam boilers or to boilers pressurized by steam.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.



Boilers for central heating or hot water supply fired with solid, liquid or gaseous fuels.

Standard NumberBS 7190:1989
TitleMethod for assessing thermal performance of low temperature hot water boilers using a test rig
StatusConfirmed
Publication Date1989-12-31
ReplacesDD 65-1:1979, DD 65-2:1982
DescriptorsErrors, Hot-water central heating, Performance testing, Boilers, Heating equipment, Hot-water boilers, Central heating, Mathematical calculations, Water heaters, Test equipment, Indirect hot-water supply, Testing conditions, Thermal output, Thermal efficiency, Hot-water supply systems, Heat loss, Tolerances (measurement)
ICS91.140.65 Water heating equipment
CommitteeRHE/10
ISBN0 580 17475 1
PublisherBSI
Pages28

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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