Spartherm – Linear Front 73×37
Versatile build in fire for multiple room sizes
The Linear Front 73×37 is a popular letterbox-shaped wood fire that can be installed in a standard chimney or, thanks to its slimline profile, in many other locations around the home. It has open combustion, which makes it ideal for well-ventilated homes and you can select from black or white chamotte interiors. The convenient elevating door with an integral handle completes the picture.
Specifications
| Brand | Spartherm |
| Spartherm ID | Varia ASh-4S |
| Series | Linear |
| Category | Wood fires |
| EcoDesign Ready | Yes |
| Energy efficiency class | A+ |
| Model | Built-in |
| Fire view | Front |
| Shape | Horizontal |
| Fuel | Wood |
| Combustion system | Combustion air from outside, Combustion air from living area |
| Suitable for passive houses | Yes |
| Glass window | Standard glass, Double glazing |
| Door type | Elevating door with integral handle |
| Control | Manual control, Smartphone/tablet |
| S-Thermatik NEO | Optional |
| Colours | Black |
| Material | Steel |
| Interior | White chamotte, Black chamotte |
| Output net min. (kW) | 4.9 |
| Output net max. (kW) | 9.1 |
| Max. log length (cm) | 33 |
| Efficiency (%) | 80.0 |
| CO emission (%-13% O2) | 0.1 |
| NOx emission (mg/Nm3-13% O2) | 124 |
| Built-in depth (mm) | 481 |
| Fire view width (mm) | 730 |
| Fire view height (mm) | 370 |
| Weight (kg) | 209 |
| Flue | Top |
| Flue Ø (mm) | 180 |
| External air connection | Rear |
| Convection connection | Yes |
| 230V necessary | No |
| Approvals | EN13229, BlmSchV, Defra, EcoDesign |
The content of this website is intended for initial assistance only – for full details please contact the showroom or refer to the manufacturers website for each product – there you will find full technical details, the product fiche etc which gives all efficiencies, installation instructions, dimensions and so on. We are more than happy to provide these but do not have the facility on this website. If you let us know which fires you are interested in, we can provide full details by email. If you have any questions at all please let us know. Happy Browsing! In the showroom or by email we are quite happy to provide full technical advice about installation and suitability
Last updated 23 April 2025
