Shopping Cart

No products in the cart.

BSI 21/30426928 DC:2021 Edition

$13.70

BS EN 13203-2. Gas-fired domestic appliances producing hot water – Part 2. Assessment of energy consumption

Published By Publication Date Number of Pages
BSI 2021 45
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document is applicable to gas-fired appliances producing domestic hot water. It applies to both instantaneous and storage tank appliances; waters-heaters and combination boilers that have:

  1. a heat input not exceeding 400 kW; and

  2. a hot water storage tank capacity (if any) not exceeding 2000 l.

In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit.

The water heaters covered by the present document are considered “conventional water heaters” as defined by the Transitional Methods (Commission Communication 2014/C 207/03) then in the calculation formula for the Annual Electricity Consumption (AEC), Qcor is equal to zero.

EN 13203‑1 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a selected variety of uses. It also gives a system for presenting the information to the user. The present document sets out a method for assessing the energy performance of the appliances. It defines a number of daily load profiles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user. Where other technologies are combined with a gas-fired boiler or a water heater to produce domestic hot water, specific parts of EN 13203 apply.

PDF Catalog

PDF Pages PDF Title
1 30426928
3 41_e_stf
8 1 Scope
2 Normative references
3 Terms and definitions
10 4 General test conditions
4.1 Reference conditions
4.2 Measurement uncertainties
4.2.1 General
11 4.2.2 Steady-state conditions
4.3 Test conditions
4.3.1 General
12 4.3.2 Test room
4.3.3 Water supply
4.3.4 Initial adjustment of the appliance
4.3.5 Conditions for the determination of the maximum load profile
13 4.3.6 Electrical supply
5 Determination of the energy consumption of the appliance
5.1 General
5.2 Load profiles
21 5.3 Determination of the energy recovered by the useful water
22 5.4 Calculation of gas energy
5.4.1 Calculation of daily gas energy consumption in summer mode
5.4.2 Calculation of daily gas energy consumption in winter mode
23 5.4.3 Daily gas energy consumption seasonally weighted
24 5.5 Calculation of daily electrical energy consumption
5.6 Measurement of energy consumption in standby mode
5.6.1 General
5.6.2 Calculation of daily gas energy consumption in standby mode
25 5.6.3 Calculation of daily auxiliary electrical energy consumption in standby mode
5.7 Determination of daily auxiliary electrical energy consumption in off mode
26 6 Determination of the ratio of wasted water to total water
27 7 Eco design Related Products Data
7.1 Water heating energy efficiency
28 7.2 Smart control factor (SCF) and smart
7.3 Annual fuel consumption (AFC)
7.4 Annual electricity consumption (AEC)
29 7.5 Mixed water at 40°C (V40) for storage water heaters
32 Annex A (informative) Test conditions
35 Annex B (informative) Examples of test rig and measurement devices
B.1 General
36 B.2 Pressure measurement
B.3 Temperature measurement
40 Annex C (informative)Declaration of the Maximum Load Profile
41 Annex ZA (informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) n° 814/2013 [OJEU L239 of 6 September 2013] aimed to be covered
42 Annex ZB (informative)Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 812/2013 [OJEU L239 of 6 September 2013] aimed to be covered
43 Annex ZC (informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) n° 813/2013 [OJEU L239 of 6 September 2013] aimed to be covered
44 Annex ZD (informative)Relationship between this European Standard and the energy labelling requirements of Commission Delegated Regulation (EU) No 811/2013 [OJEU L239 of 6 September 2013] aimed to be covered
BSI 21/30426928 DC
$13.70