elco THISION L Eco 70 User Manual

Flue Gas System Guide
Flue systems for wall hung condensing boilers from 33kW to 1040kW in cascade

elco THISION L Eco 70 Specifications

General

Model	THISION L Eco 70
Type	Condensing Boiler
Fuel Type	Natural Gas / LPG
Output	70 kW
NOx Class	5
Efficiency	Up to 109%
Control	Digital

Summary

Flue Gas System Guide

Flue Systems

1.1 Flue Information and Guidelines

Covers regulations, recommendations for flue gas system dimensioning, and safe installation practices.

1.2 Open Flue Systems

Explains open flue systems, combustion air intake, and installation practices for condensate drainage.

1.3 Room Sealed Flue Systems

Details room sealed systems using concentric or single pipe flue, combustion air supply, and condensate drainage.

1.5 Available Flue Systems per Boiler

Lists available concentric and single pipe flue systems for different Elco boiler models.

Design and Sizing Information

2.1 Boiler Maximum Flue Lengths

Provides tables for maximum flue lengths for concentric and single pipe systems based on boiler model and bends.

2.2 Safe Flue Termination

Discusses regulations and guidance for safe flue termination, including BS5440, IGE UP10, and Clean Air Act.

2.3 IGEM-UP 10

2.4 BS6644 – 70kW to 1.8MW

2.5 BS5440 – Up to 70kW

Flue Components

3.1 Available Flue Components

3.2 Thision S Plus Flue Components

3.3 Thision L Evo Flue Components

3.4 Thision L Eco Flue Components

3.5 Flexible Flue Components

3.6 Cascade Flue Components

Flue Component Dimensions

4.1 Concentric Flue Parts Dimensions

4.2 PPS Flue Parts Dimensions

4.3 Accessory Parts Dimensions

4.4 Flexible Flue Dimensions

4.5 Cascade Flue Dimensions