DIN EN 15544 2023-04 PDF

Full title and description

DIN EN 15544:2023-04 — Ortsfest gesetzte Kachelgrundöfen/Putzgrundöfen - Auslegung (One off Kachelgrundöfen/Putzgrundöfen (tiled/mortared stoves) - Dimensioning). The document contains rules and calculation procedures for sizing and dimensioning individual site-built tiled or mortared solid-fuel stoves (operated with split logs), and the use of those calculations to demonstrate emissions (CO, NO2, organically bound carbon, particulate matter) and thermal efficiency.

Abstract

This European (adopted as a German) standard specifies methods to determine the nominal heat output and dimensional requirements of one-off tiled/mortared stoves, provides calculation procedures for fuel mass and flue/duct characteristics, and sets out parameters needed to demonstrate emissions and efficiency. It replaces the earlier 2009 edition and includes corrections, updated equations and additional definitions to reflect current testing and design practice.

General information

• Status: Published / Current (national adoption as DIN EN 15544:2023-04).
• Publication date: 2023-04 (April 2023 — designated DIN EN 15544:2023-04).
• Publisher: Deutsches Institut für Normung (DIN) / distributed by Beuth Verlag (German version of EN 15544:2023).
• ICS / categories: 97.100.30 (Solid-fuel heating appliances).
• Edition / version: EN 15544:2023, adopted as DIN EN 15544:2023-04 (replacement of DIN EN 15544:2009-12).
• Number of pages: 26 pages (German edition metadata).

Scope

The standard applies to site-built (one-off) tiled and mortared stoves fired with split wood; it defines dimensioning procedures based on the required nominal heat output declared by the manufacturer/builder, describes how to calculate fuel mass and flue geometry, and specifies the parameters and calculation steps used to assess emissions (carbon monoxide, nitrogen dioxide, organically bound carbon, particulate matter) and appliance efficiency. It is intended for stoves constructed in situ (hand-built) rather than factory-produced insert units, and it gives specific treatment for type-tested fireboxes where applicable.

Key topics and requirements

• Methods to determine nominal heat output referenced to norm heating load for full and partial heating.
• Calculation of fuel mass using a variable efficiency value (replacing prior fixed-efficiency assumptions).
• Introduction of a calculated flue (abgasrohr) length and factors to compute minimum draught length depending on efficiency (table-based).
• Requirements on declared fuel properties (wood moisture content and log dimensions) used in calculations.
• Rules for handling type-tested combustion chambers within site-built constructions.
• Updated definitions (e.g., air factor, calculated flue length) and clarification of constructions 'with air gap' vs. 'without air gap'.
• Specification of how to calculate minimum fuel mass and an adjusted treatment of glass plate area relative to the internal combustion-chamber area.
• Note on dew point condition: for this edition the dew point condition is calculated for nominal heat output (deviating from EN 13384-1 practice where indicated).

Typical use and users

Intended users include stove designers and manufacturers (especially small-scale or artisan builders), masonry stove builders, type-test laboratories, conformity assessment and certification bodies, emissions assessors, building inspectors and regulatory authorities, and consultants involved in retrofit or bespoke stove installations who need to size stoves, verify emissions and demonstrate compliance with national/regional regulations.

Related standards

EN 15544 references and is commonly used alongside chimney and flue calculation standards such as EN 13384-1 (calculation of chimney and flue systems) and other CEN/TC 295 documents covering solid-fuel domestic appliances; users should consult chimney calculation and emissions testing standards when applying EN 15544.

Keywords

tiled stove, mortared stove, Kachelgrundofen, Putzgrundofen, dimensioning, nominal heat output, fuel mass calculation, flue length, draught, emissions, CO, NO2, particulate matter, efficiency, EN 15544, DIN EN 15544.

FAQ

Q: What is this standard?

A: DIN EN 15544:2023-04 is the German-adopted version of EN 15544:2023 — a European standard that sets out dimensioning and calculation methods for one-off tiled/mortared stoves and the associated procedures to demonstrate emissions and efficiency.

Q: What does it cover?

A: It covers sizing (dimensioning) rules based on declared nominal heat output, calculation of fuel mass (now using variable efficiency), flue/duct length calculations, factors for minimum draught length, fuel specification (moisture and dimensions), treatment of type-tested combustion chambers, and the parameters needed to show emissions and thermal efficiency.

Q: Who typically uses it?

A: Stove builders (especially bespoke/site-built masonry stoves), manufacturers incorporating site-built elements, test laboratories, certifiers, building control authorities, and consultants focused on solid-fuel heating appliance compliance and emissions.

Q: Is it current or superseded?

A: This edition (EN 15544:2023, adopted as DIN EN 15544:2023-04) is published and replaces the earlier DIN EN 15544:2009 (or 2010 national publication in some listings). It is the current version for national application where adopted.

Q: Is it part of a series?

A: Yes — it is part of the CEN/TC 295 family of standards for domestic solid-fuel appliances and is normally used together with related chimney/flue standards (for example EN 13384-1) and other CEN guidance relevant to emissions testing and appliance safety.

Q: What are the key keywords?

A: Tiled stove, mortared stove, dimensioning, nominal heat output, fuel mass, flue length, draught, emissions, efficiency, masonry stove.