Spartherm LEAN 3RL-70H RLU
Minimum device depth - Maximum fire visibility.
Log wood fireplace inserts create a pleasant atmosphere in your home. They combine the advantages of an oven with those of a fireplace and also offer a high degree of flexibility in terms of ecological and economic flexibility as well as the modern design of your own four walls. Log wood fireplace inserts are also suitable for closing and retrofitting open fireplaces. They are the heart of your individual fireplace.
As a rule, firewood fireplace inserts are often used in the living room or similar rooms in which users often stay. They ensure a comfortable ambience and give a sense of security. On the other hand, firewood fireplace inserts are an eye-catcher in every room. Equipped in this way, it is particularly easy to spend a romantic evening at home and relax wonderfully. The log fireplace inserts from the Spartherm range are varied and offer you the opportunity to find exactly the alternative that is perfectly tailored to your needs. All you have to do is ensure that the firewood inserts you use should fit into your living space.
The innovative lean model was developed for houses and apartments with little space and low heat requirements. This innovative fireplace insert is characterized by a consistently minimized device depth. The U-shaped Lean 3RL-70h model, which is equipped with three viewing panes, offers an impressively wide fire panorama despite its compact format. In terms of firing technology, the fireplace scores with a multi-part, infrared-coated combustion chamber glazing for reduced radiation distance, high combustion chamber temperatures and reduced buildup. Thanks to its small flue gas connection (diameter 150 mm), the Lean fireplace insert is also suitable for small chimney diameters. Plus point for the environment: The compact format ensures particularly efficient and therefore sustainable use of wood as a fuel.
Technical specifications
- Manufacturer: SPARTHERM
- Energy efficiency class :

- Nominal heat output (closed) kW: 7.5
- Efficiency % : >80
- Model: built in
- Fire vision: 3 sided
- Fuel: Logs
- Combustion system: Closed combustion, NOT dependent on ambient air with DIBt-certification
- Type of glass: Standard with EnergyPlus coating
- Door version: Sliding
- Diameter flue pipe socket mm: 150
- Weight kg: 230
- Material: body made of 3.0 mm special steel
- Combustion chamber lining: heat-resistant fireclay color ivory (optionally black)
- Certifications: BImSCHV. 2.Stage, 15a B-VG, DIBt
- Operation possible with type A1: yes (self closing door)
- Operation possible with type A: no
Optional accessories:
– Mounting frame
– S-Thermatik-NEO
– eboris 1300 ultra black (chamotte)
Important note: Before purchasing, please speak to your district chimney sweep and obtain permission from him to operate the desired chimney.